我叫圣文

2026-05-15 16:37:22 +08:00
parent 41c915d1df
commit 90219a3daf
52 changed files with 3315 additions and 5 deletions
--- a/steady/pom.xml
+++ b/steady/pom.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.njcn.gather</groupId>
+        <artifactId>CN_Tool</artifactId>
+        <version>1.0.0</version>
+    </parent>
+
+    <artifactId>steady</artifactId>
+    <packaging>pom</packaging>
+
+    <modules>
+        <module>steady-DataView</module>
+    </modules>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+</project>
--- a/steady/steady-DataView/API_DEBUG.md
+++ b/steady/steady-DataView/API_DEBUG.md
@@ -0,0 +1,239 @@
+# steady-DataView API 调试文档
+
+## 1. 基础信息
+
+- 模块：`steady/steady-DataView`
+- 控制器：`SteadyDataViewController`
+- 接口前缀：`/steady/data-view`
+- 本地默认地址：`http://localhost:18192`
+- Content-Type：`application/json`
+- 认证：除登录和 Swagger 资源外，请求需要携带登录后的 `Authorization` 头。
+
+## 2. 分页查询稳态数据
+
+- 路径：`POST /steady/data-view/page`
+- 返回：`HttpResult<Page<SteadyDataViewVO>>`
+- 默认表：`data_v`
+- 默认时间范围：当前月 1 日 `00:00:00` 到当前时间
+- 默认排序：`TIMEID DESC, LINEID ASC, PHASIC_TYPE ASC`
+
+请求示例：
+
+```json
+{
+  "pageNum": 1,
+  "pageSize": 10,
+  "tableName": "data_v",
+  "timeStart": "2026-05-01 00:00:00",
+  "timeEnd": "2026-05-09 23:59:59",
+  "phasicType": "A",
+  "qualityFlag": 1,
+  "lineIds": [
+    "line-001"
+  ],
+  "engineeringName": "示例工程",
+  "projectName": "示例项目",
+  "equipmentName": "示例设备",
+  "lineName": "示例测点"
+}
+```
+
+`tableName` 只允许 `tools/add-data` 已注册的 13 张 `data_*` 表；台账关键字会先通过 `add-ledger` 转换为监测点 ID，再查询稳态数据表。
+
+## 3. 查询稳态数据详情
+
+- 路径：`POST /steady/data-view/detail`
+- 返回：`HttpResult<SteadyDataViewVO>`
+
+请求示例：
+
+```json
+{
+  "tableName": "data_v",
+  "lineId": "line-001",
+  "timeId": "2026-05-09 10:20:30",
+  "phasicType": "A"
+}
+```
+
+详情使用 `LINEID + TIMEID + PHASIC_TYPE` 定位单条数据。
+
+## 4. 查询稳态数据模板
+
+- 路径：`GET /steady/data-view/templates`
+- 返回：`HttpResult<List<SteadyDataViewTemplateVO>>`
+
+模板来自 `tools/add-data` 的前端展示模板，返回参数名称、表名、相别和当前表可展示值字段。
+
+## 5. 查询趋势台账树
+
+- 路径：`GET /steady/data-view/ledger-tree`
+- 返回：`HttpResult<List<SteadyDataViewLedgerNodeVO>>`
+- 查询参数：`keyword`，可选，按台账节点名称搜索并保留父级路径。
+
+节点字段：
+
+| 字段 | 说明 |
+| --- | --- |
+| `id` | 台账节点 ID |
+| `parentId` | 父节点 ID |
+| `name` | 节点名称 |
+| `level` | 层级：0 工程，1 项目，2 设备，3 监测点 |
+| `deviceCount` | 当前节点下有效设备数 |
+| `lineCount` | 当前节点下有效监测点数 |
+| `selectable` | 是否可直接选择 |
+| `children` | 子节点 |
+
+## 6. 查询趋势指标树
+
+- 路径：`GET /steady/data-view/indicator-tree`
+- 返回：`HttpResult<List<SteadyDataViewIndicatorNodeVO>>`
+
+当前指标目录覆盖：
+
+- 电压趋势：`V_RMS`、`V_LINE_RMS`
+- 电流趋势：`I_RMS`
+- 频率趋势：`FREQ`
+- 谐波趋势：`V_THD`、`I_THD`、`V_HARMONIC`、`I_HARMONIC`、`V_HARMONIC_RATE`、`I_HARMONIC_RATE`、`I_INTER_HARMONIC`、`P_HARMONIC_POWER`、`Q_HARMONIC_POWER`、`S_HARMONIC_POWER`
+- 闪变趋势：`FLUC`、`PST`、`PLT`
+
+叶子节点会返回 `tableName`、`phaseCodes`、`seriesFields`、`supportStats`、`harmonicOrderStart`、`harmonicOrderEnd`、`unit`，前端按这些字段驱动相别、统计类型和谐波次数选择。
+
+## 7. 查询趋势数据
+
+- 路径：`POST /steady/data-view/trend/query`
+- 返回：`HttpResult<SteadyTrendQueryVO>`
+
+请求示例：
+
+```json
+{
+  "lineIds": ["line-001"],
+  "indicatorCodes": ["V_RMS"],
+  "statTypes": ["AVG", "MAX", "MIN", "CP95"],
+  "phases": ["A", "B", "C"],
+  "timeStart": "2026-05-01 00:00:00",
+  "timeEnd": "2026-05-01 23:59:59",
+  "bucket": "10m",
+  "qualityFlag": 1
+}
+```
+
+返回示例：
+
+```json
+{
+  "sampled": true,
+  "bucket": "10m",
+  "sourcePointCount": 144,
+  "displayPointCount": 144,
+  "loadableDays": ["2026-05-01"],
+  "series": [
+    {
+      "seriesKey": "line-001|V_RMS|A|AVG|RMS",
+      "lineId": "line-001",
+      "lineName": "进线一",
+      "indicatorCode": "V_RMS",
+      "indicatorName": "相电压有效值",
+      "seriesName": "相电压有效值",
+      "phase": "A",
+      "statType": "AVG",
+      "unit": "V",
+      "points": [
+        {
+          "time": "2026-05-01 00:00:00",
+          "value": 220.1
+        }
+      ]
+    }
+  ]
+}
+```
+
+谐波请求必须指定 `harmonicOrders`，最多 6 个：
+
+```json
+{
+  "lineIds": ["line-001"],
+  "indicatorCodes": ["V_HARMONIC"],
+  "statTypes": ["MAX"],
+  "phases": ["A"],
+  "harmonicOrders": [3, 5, 7],
+  "timeStart": "2026-05-01 00:00:00",
+  "timeEnd": "2026-05-01 23:59:59",
+  "bucket": "10m",
+  "qualityFlag": 1
+}
+```
+
+## 8. 按天查询趋势数据
+
+- 路径：`POST /steady/data-view/trend/day`
+- 返回：`HttpResult<SteadyTrendQueryVO>`
+
+请求体与 `/trend/query` 一致。前端切换日期或加载某一天数据时，将 `timeStart`、`timeEnd` 控制在当天范围即可。
+
+## 9. 查询趋势统计摘要
+
+- 路径：`POST /steady/data-view/trend/summary`
+- 返回：`HttpResult<SteadyTrendSummaryVO>`
+
+请求体与 `/trend/query` 一致。后端按当前查询范围返回每条曲线的 `max`、`avg`、`min`、`cp95`。
+
+## 10. InfluxDB 配置
+
+配置项前缀：`steady.influxdb`。
+
+```yaml
+steady:
+  influxdb:
+    url: http://192.168.1.103:18086
+    database: pqsbase
+    username: admin
+    password: ${STEADY_INFLUXDB_PASSWORD:}
+    ssl: false
+    connect-timeout-ms: 5000
+    read-timeout-ms: 30000
+```
+
+接口按 InfluxDB 1.x InfluxQL `/query` 方式访问。代码不会提交明文密码；本地密码请通过环境变量或本地覆盖配置提供。
+
+## 11. 返回字段说明
+
+| 字段 | 说明 |
+| --- | --- |
+| `tableName` | 数据表名 |
+| `lineId` | 监测点 ID |
+| `timeId` | 数据时间 |
+| `phasicType` | 相别 |
+| `qualityFlag` | 质量标识 |
+| `equipmentName` | 设备名称，台账缺失时为 `-` |
+| `engineeringName` | 工程名称，台账缺失时为 `-` |
+| `projectName` | 项目名称，台账缺失时为 `-` |
+| `lineName` | 监测点名称，台账缺失时为 `-` |
+| `values` | 动态指标字段，字段名与目标 `data_*` 表保持一致 |
+
+## 12. 常见错误场景
+
+| 场景 | 后端提示 |
+| --- | --- |
+| 表名不在 add-data 注册表范围内 | `稳态数据表不支持：xxx` |
+| 开始时间大于结束时间 | `开始时间不能大于结束时间` |
+| 时间格式无法解析 | `时间格式不正确，仅支持 yyyy-MM-dd HH:mm:ss` |
+| 相别不为 `A/B/C/T` | `相别只能是 A、B、C、T` |
+| 质量标识不为 `0/1` | `质量标识只能是 0 或 1` |
+| `lineIds` 超过 1000 个 | `监测点 ID 查询数量不能超过 1000 个` |
+| 台账关键字匹配监测点超过 1000 个 | `台账检索匹配监测点过多，请缩小查询条件` |
+| 趋势监测点为空 | `监测点 ID 不能为空` |
+| 趋势指标为空 | `指标不能为空` |
+| 多监测点同时多指标查询 | `多监测点查询时只能选择 1 个指标` |
+| 趋势曲线超过 24 条 | `趋势曲线数量不能超过 24 条，请缩小监测点、指标、相别或统计类型范围` |
+| 谐波指标未传次数 | `谐波次数不能为空` |
+| 谐波次数超过 6 个 | `谐波次数最多选择 6 个` |
+| InfluxDB 未配置地址 | `InfluxDB 地址未配置` |
+
+## 13. 当前限制
+
+- 当前仅提供分页、详情和模板查询，未提供动态 Excel 导出。
+- 趋势接口已提供后端结构和 InfluxQL 查询封装，未做真实 InfluxDB 联调。
+- `sourcePointCount` 当前与实际返回点数一致，未额外发 InfluxDB `count` 查询。
--- a/steady/steady-DataView/pom.xml
+++ b/steady/steady-DataView/pom.xml
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.njcn.gather</groupId>
+        <artifactId>steady</artifactId>
+        <version>1.0.0</version>
+    </parent>
+
+    <artifactId>steady-DataView</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.njcn</groupId>
+            <artifactId>njcn-common</artifactId>
+            <version>0.0.1</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.njcn</groupId>
+            <artifactId>mybatis-plus</artifactId>
+            <version>0.0.1</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.njcn</groupId>
+            <artifactId>spingboot2.3.12</artifactId>
+            <version>2.3.12</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.njcn.gather</groupId>
+            <artifactId>add-ledger</artifactId>
+            <version>1.0.0</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.njcn.gather</groupId>
+            <artifactId>add-data</artifactId>
+            <version>1.0.0</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/component/SteadyInfluxQueryComponent.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/component/SteadyInfluxQueryComponent.java
@@ -0,0 +1,183 @@
+package com.njcn.gather.steady.datavie.component;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.exception.BusinessException;
+import com.njcn.gather.steady.datavie.config.SteadyInfluxDbProperties;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendPointVO;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.math.BigDecimal;
+import java.net.HttpURLConnection;
+import java.net.URLEncoder;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.time.LocalDateTime;
+import java.time.OffsetDateTime;
+import java.time.ZoneOffset;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态趋势 InfluxDB 查询组件。
+ */
+@Component
+@RequiredArgsConstructor
+public class SteadyInfluxQueryComponent {
+
+    private static final DateTimeFormatter INFLUX_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss'Z'");
+    private static final DateTimeFormatter OUTPUT_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
+
+    private final SteadyInfluxDbProperties properties;
+
+    public List<SteadyTrendPointVO> queryTrendPoints(SteadyTrendResolvedFieldBO field, LocalDateTime startTime,
+                                                     LocalDateTime endTime, String bucket, Integer qualityFlag) {
+        validateConfig();
+        String query = buildTrendQuery(field, startTime, endTime, bucket, qualityFlag);
+        String body = executeQuery(query);
+        return parseTrendPoints(body);
+    }
+
+    public String buildTrendQuery(SteadyTrendResolvedFieldBO field, LocalDateTime startTime, LocalDateTime endTime,
+                                  String bucket, Integer qualityFlag) {
+        StringBuilder sql = new StringBuilder();
+        if (bucket == null || bucket.trim().isEmpty()) {
+            sql.append("SELECT \"").append(field.getField()).append("\" AS \"value\"");
+        } else {
+            sql.append("SELECT mean(\"").append(field.getField()).append("\") AS \"value\"");
+        }
+        sql.append(" FROM \"").append(field.getMeasurement()).append("\"");
+        sql.append(" WHERE time >= '").append(INFLUX_TIME_FORMATTER.format(startTime)).append("'");
+        sql.append(" AND time <= '").append(INFLUX_TIME_FORMATTER.format(endTime)).append("'");
+        sql.append(" AND \"LINEID\" = '").append(escapeTagValue(field.getLineId())).append("'");
+        sql.append(" AND \"PHASIC_TYPE\" = '").append(escapeTagValue(field.getPhase())).append("'");
+        if (qualityFlag != null) {
+            sql.append(" AND \"QUALITYFLAG\" = '").append(qualityFlag).append("'");
+        }
+        if (bucket != null && !bucket.trim().isEmpty()) {
+            sql.append(" GROUP BY time(").append(bucket.trim()).append(") fill(none)");
+        } else {
+            sql.append(" ORDER BY time ASC");
+        }
+        return sql.toString();
+    }
+
+    private String executeQuery(String query) {
+        HttpURLConnection connection = null;
+        try {
+            URL url = new URL(buildQueryUrl(query));
+            connection = (HttpURLConnection) url.openConnection();
+            connection.setRequestMethod("GET");
+            connection.setConnectTimeout(properties.getConnectTimeoutMs());
+            connection.setReadTimeout(properties.getReadTimeoutMs());
+            int status = connection.getResponseCode();
+            InputStream stream = status >= 200 && status < 300 ? connection.getInputStream() : connection.getErrorStream();
+            String body = readBody(stream);
+            if (status < 200 || status >= 300) {
+                throw fail("InfluxDB 查询失败：" + body);
+            }
+            return body;
+        } catch (IOException ex) {
+            throw fail("InfluxDB 查询异常：" + ex.getMessage());
+        } finally {
+            if (connection != null) {
+                connection.disconnect();
+            }
+        }
+    }
+
+    private String buildQueryUrl(String query) throws IOException {
+        StringBuilder url = new StringBuilder(trimRightSlash(properties.getUrl())).append("/query?");
+        url.append("db=").append(encode(properties.getDatabase()));
+        if (properties.getUsername() != null && !properties.getUsername().trim().isEmpty()) {
+            url.append("&u=").append(encode(properties.getUsername().trim()));
+        }
+        if (properties.getPassword() != null && !properties.getPassword().trim().isEmpty()) {
+            url.append("&p=").append(encode(properties.getPassword()));
+        }
+        url.append("&q=").append(encode(query));
+        return url.toString();
+    }
+
+    private List<SteadyTrendPointVO> parseTrendPoints(String body) {
+        try {
+            JsonNode root = OBJECT_MAPPER.readTree(body);
+            JsonNode series = root.path("results").path(0).path("series").path(0);
+            JsonNode values = series.path("values");
+            if (!values.isArray()) {
+                return new ArrayList<SteadyTrendPointVO>();
+            }
+            List<SteadyTrendPointVO> result = new ArrayList<SteadyTrendPointVO>();
+            for (JsonNode value : values) {
+                if (value.size() < 2 || value.get(1).isNull()) {
+                    continue;
+                }
+                String time = formatInfluxTime(value.get(0).asText());
+                BigDecimal pointValue = value.get(1).decimalValue();
+                result.add(new SteadyTrendPointVO(time, pointValue));
+            }
+            return result;
+        } catch (IOException ex) {
+            throw fail("InfluxDB 返回结果解析失败：" + ex.getMessage());
+        }
+    }
+
+    private String formatInfluxTime(String value) {
+        try {
+            return OUTPUT_TIME_FORMATTER.format(OffsetDateTime.parse(value).withOffsetSameInstant(ZoneOffset.UTC).toLocalDateTime());
+        } catch (RuntimeException ex) {
+            return value;
+        }
+    }
+
+    private void validateConfig() {
+        if (properties.getUrl() == null || properties.getUrl().trim().isEmpty()) {
+            throw fail("InfluxDB 地址未配置");
+        }
+        if (properties.getDatabase() == null || properties.getDatabase().trim().isEmpty()) {
+            throw fail("InfluxDB database 未配置");
+        }
+    }
+
+    private String readBody(InputStream stream) throws IOException {
+        if (stream == null) {
+            return "";
+        }
+        BufferedReader reader = new BufferedReader(new InputStreamReader(stream, StandardCharsets.UTF_8));
+        StringBuilder body = new StringBuilder();
+        String line;
+        while ((line = reader.readLine()) != null) {
+            body.append(line);
+        }
+        return body.toString();
+    }
+
+    private String escapeTagValue(String value) {
+        return value == null ? "" : value.replace("\\", "\\\\").replace("'", "\\'");
+    }
+
+    private String trimRightSlash(String value) {
+        String text = value.trim();
+        while (text.endsWith("/")) {
+            text = text.substring(0, text.length() - 1);
+        }
+        return text;
+    }
+
+    private String encode(String value) throws IOException {
+        return URLEncoder.encode(value, StandardCharsets.UTF_8.name());
+    }
+
+    private BusinessException fail(String message) {
+        return new BusinessException(CommonResponseEnum.FAIL, message);
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/component/SteadyTrendFieldResolver.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/component/SteadyTrendFieldResolver.java
@@ -0,0 +1,261 @@
+package com.njcn.gather.steady.datavie.component;
+
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.exception.BusinessException;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendIndicatorDefinitionBO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendSeriesFieldBO;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyTrendQueryParam;
+import com.njcn.gather.tool.adddata.component.AddDataTableRegistry;
+import com.njcn.gather.tool.adddata.pojo.bo.AddDataTableDefinition;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * 稳态趋势字段白名单解析器。
+ */
+@Component
+@RequiredArgsConstructor
+public class SteadyTrendFieldResolver {
+
+    private static final int MAX_LINE_COUNT = 8;
+    private static final int MAX_INDICATOR_COUNT = 8;
+    private static final int MAX_SERIES_COUNT = 24;
+    private static final int MAX_HARMONIC_ORDER_COUNT = 6;
+    private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+
+    private final SteadyTrendIndicatorCatalog indicatorCatalog;
+    private final AddDataTableRegistry addDataTableRegistry;
+
+    public List<SteadyTrendResolvedFieldBO> resolveFields(SteadyTrendQueryParam param) {
+        validateBasicParam(param);
+        List<String> lineIds = normalizeTextList(param.getLineIds());
+        List<String> indicatorCodes = normalizeTextList(param.getIndicatorCodes());
+        List<String> requestPhases = normalizeUpperList(param.getPhases());
+        List<String> statTypes = normalizeUpperList(param.getStatTypes());
+        if (statTypes.isEmpty()) {
+            statTypes.add("AVG");
+        }
+        List<SteadyTrendResolvedFieldBO> result = new ArrayList<SteadyTrendResolvedFieldBO>();
+        for (String lineId : lineIds) {
+            for (String indicatorCode : indicatorCodes) {
+                SteadyTrendIndicatorDefinitionBO indicator = requireIndicator(indicatorCode);
+                List<String> phases = resolvePhases(indicator, requestPhases);
+                for (String phase : phases) {
+                    for (String statType : statTypes) {
+                        validateStatType(indicator, statType);
+                        result.addAll(resolveIndicatorFields(lineId, indicator, phase, statType, param.getHarmonicOrders()));
+                    }
+                }
+            }
+        }
+        if (result.size() > MAX_SERIES_COUNT) {
+            throw fail("趋势曲线数量不能超过 24 条，请缩小监测点、指标、相别或统计类型范围");
+        }
+        return result;
+    }
+
+    public LocalDateTime parseRequiredTime(String time, String emptyMessage) {
+        String text = trimToNull(time);
+        if (text == null) {
+            throw fail(emptyMessage);
+        }
+        try {
+            return LocalDateTime.parse(text, TIME_FORMATTER);
+        } catch (DateTimeParseException ex) {
+            throw fail("时间格式不正确，仅支持 yyyy-MM-dd HH:mm:ss");
+        }
+    }
+
+    private List<SteadyTrendResolvedFieldBO> resolveIndicatorFields(String lineId, SteadyTrendIndicatorDefinitionBO indicator,
+                                                                    String phase, String statType, List<Integer> harmonicOrders) {
+        if (Boolean.TRUE.equals(indicator.getHarmonic())) {
+            return resolveHarmonicFields(lineId, indicator, phase, statType, harmonicOrders);
+        }
+        List<SteadyTrendResolvedFieldBO> result = new ArrayList<SteadyTrendResolvedFieldBO>();
+        for (SteadyTrendSeriesFieldBO seriesField : indicator.getSeriesFields()) {
+            String field = resolveStatField(seriesField.getField(), statType);
+            validateColumn(indicator.getTableName(), field);
+            result.add(buildResolvedField(lineId, indicator, phase, statType, field, seriesField.getName()));
+        }
+        return result;
+    }
+
+    private List<SteadyTrendResolvedFieldBO> resolveHarmonicFields(String lineId, SteadyTrendIndicatorDefinitionBO indicator,
+                                                                   String phase, String statType, List<Integer> harmonicOrders) {
+        List<Integer> orders = normalizeOrders(harmonicOrders);
+        if (orders.isEmpty()) {
+            throw fail("谐波次数不能为空");
+        }
+        if (orders.size() > MAX_HARMONIC_ORDER_COUNT) {
+            throw fail("谐波次数最多选择 6 个");
+        }
+        List<SteadyTrendResolvedFieldBO> result = new ArrayList<SteadyTrendResolvedFieldBO>();
+        for (Integer order : orders) {
+            if (order < indicator.getHarmonicOrderStart() || order > indicator.getHarmonicOrderEnd()) {
+                throw fail("谐波次数只能在 " + indicator.getHarmonicOrderStart() + " 到 " + indicator.getHarmonicOrderEnd() + " 之间");
+            }
+            String baseField = indicator.getHarmonicFieldPrefix() + "_" + order;
+            String field = resolveStatField(baseField, statType);
+            validateColumn(indicator.getTableName(), field);
+            result.add(buildResolvedField(lineId, indicator, phase, statType, field, order + "次" + indicator.getName()));
+        }
+        return result;
+    }
+
+    private SteadyTrendResolvedFieldBO buildResolvedField(String lineId, SteadyTrendIndicatorDefinitionBO indicator,
+                                                          String phase, String statType, String field, String seriesName) {
+        SteadyTrendResolvedFieldBO resolved = new SteadyTrendResolvedFieldBO();
+        resolved.setMeasurement(indicator.getTableName());
+        resolved.setField(field);
+        resolved.setLineId(lineId);
+        resolved.setIndicatorCode(indicator.getIndicatorCode());
+        resolved.setIndicatorName(indicator.getName());
+        resolved.setSeriesName(seriesName);
+        resolved.setPhase(phase);
+        resolved.setStatType(statType);
+        resolved.setUnit(indicator.getUnit());
+        resolved.setSeriesKey(lineId + "|" + indicator.getIndicatorCode() + "|" + phase + "|" + statType + "|" + field);
+        return resolved;
+    }
+
+    private void validateBasicParam(SteadyTrendQueryParam param) {
+        if (param == null) {
+            throw fail("趋势查询参数不能为空");
+        }
+        List<String> lineIds = normalizeTextList(param.getLineIds());
+        List<String> indicatorCodes = normalizeTextList(param.getIndicatorCodes());
+        if (lineIds.isEmpty()) {
+            throw fail("监测点 ID 不能为空");
+        }
+        if (indicatorCodes.isEmpty()) {
+            throw fail("指标不能为空");
+        }
+        if (lineIds.size() > MAX_LINE_COUNT) {
+            throw fail("监测点数量不能超过 8 个");
+        }
+        if (indicatorCodes.size() > MAX_INDICATOR_COUNT) {
+            throw fail("指标数量不能超过 8 个");
+        }
+        if (lineIds.size() > 1 && indicatorCodes.size() > 1) {
+            throw fail("多监测点查询时只能选择 1 个指标");
+        }
+        LocalDateTime startTime = parseRequiredTime(param.getTimeStart(), "开始时间不能为空");
+        LocalDateTime endTime = parseRequiredTime(param.getTimeEnd(), "结束时间不能为空");
+        if (startTime.isAfter(endTime)) {
+            throw fail("开始时间不能大于结束时间");
+        }
+        if (param.getQualityFlag() != null && param.getQualityFlag() != 0 && param.getQualityFlag() != 1) {
+            throw fail("质量标识只能是 0 或 1");
+        }
+    }
+
+    private SteadyTrendIndicatorDefinitionBO requireIndicator(String indicatorCode) {
+        SteadyTrendIndicatorDefinitionBO indicator = indicatorCatalog.getIndicator(indicatorCode);
+        if (indicator == null) {
+            throw fail("稳态趋势指标不支持：" + indicatorCode);
+        }
+        return indicator;
+    }
+
+    private List<String> resolvePhases(SteadyTrendIndicatorDefinitionBO indicator, List<String> requestPhases) {
+        if (requestPhases.isEmpty()) {
+            return new ArrayList<String>(indicator.getPhaseCodes());
+        }
+        List<String> result = new ArrayList<String>();
+        for (String phase : requestPhases) {
+            if (!"A".equals(phase) && !"B".equals(phase) && !"C".equals(phase) && !"T".equals(phase)) {
+                throw fail("相别只能是 A、B、C、T");
+            }
+            if (indicator.getPhaseCodes().contains(phase) && !result.contains(phase)) {
+                result.add(phase);
+            }
+        }
+        if (result.isEmpty()) {
+            throw fail("指标 " + indicator.getIndicatorCode() + " 不支持当前相别");
+        }
+        return result;
+    }
+
+    private void validateStatType(SteadyTrendIndicatorDefinitionBO indicator, String statType) {
+        if (!"AVG".equals(statType) && !"MAX".equals(statType) && !"MIN".equals(statType) && !"CP95".equals(statType)) {
+            throw fail("统计类型只能是 AVG、MAX、MIN、CP95");
+        }
+        if (!indicator.getSupportStats().contains(statType)) {
+            throw fail("指标 " + indicator.getIndicatorCode() + " 不支持统计类型：" + statType);
+        }
+    }
+
+    private String resolveStatField(String baseField, String statType) {
+        if ("AVG".equals(statType)) {
+            return baseField;
+        }
+        return baseField + "_" + statType;
+    }
+
+    private void validateColumn(String tableName, String field) {
+        AddDataTableDefinition definition;
+        try {
+            definition = addDataTableRegistry.getDefinition(tableName);
+        } catch (IllegalArgumentException ex) {
+            throw fail("稳态数据表不支持：" + tableName);
+        }
+        if (!definition.getColumns().contains(field)) {
+            throw fail("稳态趋势字段不支持：" + tableName + "." + field);
+        }
+    }
+
+    private List<String> normalizeTextList(List<String> values) {
+        if (values == null || values.isEmpty()) {
+            return new ArrayList<String>();
+        }
+        List<String> result = new ArrayList<String>();
+        for (String value : values) {
+            String text = trimToNull(value);
+            if (text != null && !result.contains(text)) {
+                result.add(text);
+            }
+        }
+        return result;
+    }
+
+    private List<String> normalizeUpperList(List<String> values) {
+        List<String> result = normalizeTextList(values);
+        for (int i = 0; i < result.size(); i++) {
+            result.set(i, result.get(i).toUpperCase());
+        }
+        return result;
+    }
+
+    private List<Integer> normalizeOrders(List<Integer> orders) {
+        if (orders == null || orders.isEmpty()) {
+            return Collections.emptyList();
+        }
+        List<Integer> result = new ArrayList<Integer>();
+        for (Integer order : orders) {
+            if (order != null && !result.contains(order)) {
+                result.add(order);
+            }
+        }
+        return result;
+    }
+
+    private String trimToNull(String value) {
+        if (value == null) {
+            return null;
+        }
+        String trimmed = value.trim();
+        return trimmed.isEmpty() ? null : trimmed;
+    }
+
+    private BusinessException fail(String message) {
+        return new BusinessException(CommonResponseEnum.FAIL, message);
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/component/SteadyTrendIndicatorCatalog.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/component/SteadyTrendIndicatorCatalog.java
@@ -0,0 +1,112 @@
+package com.njcn.gather.steady.datavie.component;
+
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendIndicatorDefinitionBO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendSeriesFieldBO;
+import org.springframework.stereotype.Component;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 稳态趋势指标目录。
+ */
+@Component
+public class SteadyTrendIndicatorCatalog {
+
+    private static final List<String> FULL_STATS = Collections.unmodifiableList(Arrays.asList("AVG", "MAX", "MIN", "CP95"));
+    private static final List<String> AVG_ONLY = Collections.unmodifiableList(Collections.singletonList("AVG"));
+    private static final List<String> ABC_PHASES = Collections.unmodifiableList(Arrays.asList("A", "B", "C"));
+    private static final List<String> T_PHASE = Collections.unmodifiableList(Collections.singletonList("T"));
+
+    private final List<SteadyTrendIndicatorDefinitionBO> indicators;
+    private final Map<String, SteadyTrendIndicatorDefinitionBO> indicatorMap;
+
+    public SteadyTrendIndicatorCatalog() {
+        List<SteadyTrendIndicatorDefinitionBO> result = new ArrayList<SteadyTrendIndicatorDefinitionBO>();
+        result.add(indicator("V_RMS", "相电压有效值", "VOLTAGE", "电压趋势", "data_v", ABC_PHASES,
+                fields(field("RMS", "相电压有效值")), FULL_STATS, "V"));
+        result.add(indicator("V_LINE_RMS", "线电压有效值", "VOLTAGE", "电压趋势", "data_v", T_PHASE,
+                fields(field("RMSAB", "AB线电压"), field("RMSBC", "BC线电压"), field("RMSCA", "CA线电压")),
+                FULL_STATS, "V"));
+        result.add(indicator("FREQ", "频率", "FREQUENCY", "频率趋势", "data_v", T_PHASE,
+                fields(field("FREQ", "频率")), FULL_STATS, "Hz"));
+        result.add(indicator("V_THD", "电压总谐波畸变率", "HARMONIC", "谐波趋势", "data_v", ABC_PHASES,
+                fields(field("V_THD", "电压总谐波畸变率")), FULL_STATS, "%"));
+        result.add(indicator("I_RMS", "电流有效值", "CURRENT", "电流趋势", "data_i", ABC_PHASES,
+                fields(field("RMS", "电流有效值")), FULL_STATS, "A"));
+        result.add(indicator("I_THD", "电流总谐波畸变率", "HARMONIC", "谐波趋势", "data_i", ABC_PHASES,
+                fields(field("I_THD", "电流总谐波畸变率")), FULL_STATS, "%"));
+        result.add(harmonic("V_HARMONIC", "电压谐波幅值", "data_harmphasic_v", "V", "V"));
+        result.add(harmonic("I_HARMONIC", "电流谐波幅值", "data_harmphasic_i", "I", "A"));
+        result.add(harmonic("V_HARMONIC_RATE", "电压谐波含有率", "data_harmrate_v", "V", "%"));
+        result.add(harmonic("I_HARMONIC_RATE", "电流谐波含有率", "data_harmrate_i", "I", "%"));
+        result.add(harmonic("I_INTER_HARMONIC", "间谐波电流", "data_inharm_i", "I", "A"));
+        result.add(harmonicPower("P_HARMONIC_POWER", "有功谐波功率", "data_harmpower_p", "P", "kW"));
+        result.add(harmonicPower("Q_HARMONIC_POWER", "无功谐波功率", "data_harmpower_q", "Q", "kvar"));
+        result.add(harmonicPower("S_HARMONIC_POWER", "视在谐波功率", "data_harmpower_s", "S", "kVA"));
+        result.add(indicator("FLUC", "电压波动", "FLICKER", "闪变趋势", "data_fluc", T_PHASE,
+                fields(field("FLUC", "电压波动")), AVG_ONLY, "%"));
+        result.add(indicator("PST", "短时闪变", "FLICKER", "闪变趋势", "data_flicker", T_PHASE,
+                fields(field("PST", "短时闪变")), AVG_ONLY, ""));
+        result.add(indicator("PLT", "长时闪变", "FLICKER", "闪变趋势", "data_plt", T_PHASE,
+                fields(field("PLT", "长时闪变")), AVG_ONLY, ""));
+        indicators = Collections.unmodifiableList(result);
+
+        Map<String, SteadyTrendIndicatorDefinitionBO> map = new LinkedHashMap<String, SteadyTrendIndicatorDefinitionBO>();
+        for (SteadyTrendIndicatorDefinitionBO indicator : indicators) {
+            map.put(indicator.getIndicatorCode(), indicator);
+        }
+        indicatorMap = Collections.unmodifiableMap(map);
+    }
+
+    public List<SteadyTrendIndicatorDefinitionBO> listIndicators() {
+        return indicators;
+    }
+
+    public SteadyTrendIndicatorDefinitionBO getIndicator(String indicatorCode) {
+        return indicatorMap.get(indicatorCode);
+    }
+
+    private SteadyTrendIndicatorDefinitionBO harmonic(String code, String name, String tableName, String prefix, String unit) {
+        SteadyTrendIndicatorDefinitionBO indicator = indicator(code, name, "HARMONIC", "谐波趋势", tableName, ABC_PHASES,
+                new ArrayList<SteadyTrendSeriesFieldBO>(), FULL_STATS, unit);
+        indicator.setHarmonic(true);
+        indicator.setHarmonicFieldPrefix(prefix);
+        indicator.setHarmonicOrderStart(2);
+        indicator.setHarmonicOrderEnd(50);
+        return indicator;
+    }
+
+    private SteadyTrendIndicatorDefinitionBO harmonicPower(String code, String name, String tableName, String prefix, String unit) {
+        return harmonic(code, name, tableName, prefix, unit);
+    }
+
+    private SteadyTrendIndicatorDefinitionBO indicator(String code, String name, String groupCode, String groupName,
+                                                       String tableName, List<String> phaseCodes,
+                                                       List<SteadyTrendSeriesFieldBO> seriesFields,
+                                                       List<String> supportStats, String unit) {
+        SteadyTrendIndicatorDefinitionBO indicator = new SteadyTrendIndicatorDefinitionBO();
+        indicator.setIndicatorCode(code);
+        indicator.setName(name);
+        indicator.setGroupCode(groupCode);
+        indicator.setGroupName(groupName);
+        indicator.setTableName(tableName);
+        indicator.setPhaseCodes(new ArrayList<String>(phaseCodes));
+        indicator.setSeriesFields(new ArrayList<SteadyTrendSeriesFieldBO>(seriesFields));
+        indicator.setSupportStats(new ArrayList<String>(supportStats));
+        indicator.setUnit(unit);
+        return indicator;
+    }
+
+    private List<SteadyTrendSeriesFieldBO> fields(SteadyTrendSeriesFieldBO... fields) {
+        return new ArrayList<SteadyTrendSeriesFieldBO>(Arrays.asList(fields));
+    }
+
+    private SteadyTrendSeriesFieldBO field(String field, String name) {
+        return new SteadyTrendSeriesFieldBO(field, name);
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/config/SteadyInfluxDbProperties.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/config/SteadyInfluxDbProperties.java
@@ -0,0 +1,28 @@
+package com.njcn.gather.steady.datavie.config;
+
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+
+/**
+ * 稳态趋势 InfluxDB 配置。
+ */
+@Data
+@Component
+@ConfigurationProperties(prefix = "steady.influxdb")
+public class SteadyInfluxDbProperties {
+
+    private String url;
+
+    private String database;
+
+    private String username;
+
+    private String password;
+
+    private Boolean ssl = false;
+
+    private Integer connectTimeoutMs = 5000;
+
+    private Integer readTimeoutMs = 30000;
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/config/SteadySecondTimeSerializer.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/config/SteadySecondTimeSerializer.java
@@ -0,0 +1,26 @@
+package com.njcn.gather.steady.datavie.config;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.SerializerProvider;
+
+import java.io.IOException;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+/**
+ * 稳态数据时间字段按秒输出，避免接口响应携带毫秒。
+ */
+public class SteadySecondTimeSerializer extends JsonSerializer<LocalDateTime> {
+
+    private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+
+    @Override
+    public void serialize(LocalDateTime value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
+        if (value == null) {
+            gen.writeNull();
+            return;
+        }
+        gen.writeString(FORMATTER.format(value));
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/controller/SteadyDataViewController.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/controller/SteadyDataViewController.java
@@ -0,0 +1,72 @@
+package com.njcn.gather.steady.datavie.controller;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.njcn.common.pojo.annotation.OperateInfo;
+import com.njcn.common.pojo.enums.common.LogEnum;
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.response.HttpResult;
+import com.njcn.common.utils.LogUtil;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyDataViewDetailParam;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyDataViewQueryParam;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewTemplateVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewVO;
+import com.njcn.gather.steady.datavie.service.SteadyDataViewService;
+import com.njcn.web.controller.BaseController;
+import com.njcn.web.utils.HttpResultUtil;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+/**
+ * 稳态数据查看接口。
+ */
+@Validated
+@Slf4j
+@Api(tags = "稳态数据查看")
+@RestController
+@RequestMapping("/steady/data-view")
+@RequiredArgsConstructor
+public class SteadyDataViewController extends BaseController {
+
+    /** 稳态数据查看服务。 */
+    private final SteadyDataViewService steadyDataViewService;
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("分页查询稳态数据")
+    @PostMapping("/page")
+    public HttpResult<Page<SteadyDataViewVO>> pageSteadyData(@RequestBody SteadyDataViewQueryParam param) {
+        String methodDescribe = getMethodDescribe("pageSteadyData");
+        LogUtil.njcnDebug(log, "{}，开始分页查询稳态数据，param={}", methodDescribe, param);
+        Page<SteadyDataViewVO> result = steadyDataViewService.pageSteadyData(param);
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("查询稳态数据详情")
+    @PostMapping("/detail")
+    public HttpResult<SteadyDataViewVO> getSteadyDataDetail(@RequestBody SteadyDataViewDetailParam param) {
+        String methodDescribe = getMethodDescribe("getSteadyDataDetail");
+        LogUtil.njcnDebug(log, "{}，开始查询稳态数据详情，param={}", methodDescribe, param);
+        SteadyDataViewVO result = steadyDataViewService.getSteadyDataDetail(param);
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("查询稳态数据模板")
+    @GetMapping("/templates")
+    public HttpResult<List<SteadyDataViewTemplateVO>> listTemplates() {
+        String methodDescribe = getMethodDescribe("listTemplates");
+        LogUtil.njcnDebug(log, "{}，开始查询稳态数据模板", methodDescribe);
+        List<SteadyDataViewTemplateVO> result = steadyDataViewService.listTemplates();
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/controller/SteadyDataViewIndicatorController.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/controller/SteadyDataViewIndicatorController.java
@@ -0,0 +1,43 @@
+package com.njcn.gather.steady.datavie.controller;
+
+import com.njcn.common.pojo.annotation.OperateInfo;
+import com.njcn.common.pojo.enums.common.LogEnum;
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.response.HttpResult;
+import com.njcn.common.utils.LogUtil;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewIndicatorNodeVO;
+import com.njcn.gather.steady.datavie.service.SteadyDataViewIndicatorService;
+import com.njcn.web.controller.BaseController;
+import com.njcn.web.utils.HttpResultUtil;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+/**
+ * 稳态趋势指标接口。
+ */
+@Slf4j
+@Api(tags = "稳态趋势指标")
+@RestController
+@RequestMapping("/steady/data-view")
+@RequiredArgsConstructor
+public class SteadyDataViewIndicatorController extends BaseController {
+
+    private final SteadyDataViewIndicatorService indicatorService;
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("查询稳态趋势指标树")
+    @GetMapping("/indicator-tree")
+    public HttpResult<List<SteadyDataViewIndicatorNodeVO>> listIndicatorTree() {
+        String methodDescribe = getMethodDescribe("listIndicatorTree");
+        LogUtil.njcnDebug(log, "{}，开始查询稳态趋势指标树", methodDescribe);
+        List<SteadyDataViewIndicatorNodeVO> result = indicatorService.listIndicatorTree();
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/controller/SteadyDataViewLedgerController.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/controller/SteadyDataViewLedgerController.java
@@ -0,0 +1,44 @@
+package com.njcn.gather.steady.datavie.controller;
+
+import com.njcn.common.pojo.annotation.OperateInfo;
+import com.njcn.common.pojo.enums.common.LogEnum;
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.response.HttpResult;
+import com.njcn.common.utils.LogUtil;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewLedgerNodeVO;
+import com.njcn.gather.steady.datavie.service.SteadyDataViewLedgerService;
+import com.njcn.web.controller.BaseController;
+import com.njcn.web.utils.HttpResultUtil;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+/**
+ * 稳态趋势台账树接口。
+ */
+@Slf4j
+@Api(tags = "稳态趋势台账树")
+@RestController
+@RequestMapping("/steady/data-view")
+@RequiredArgsConstructor
+public class SteadyDataViewLedgerController extends BaseController {
+
+    private final SteadyDataViewLedgerService ledgerService;
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("查询稳态趋势台账树")
+    @GetMapping("/ledger-tree")
+    public HttpResult<List<SteadyDataViewLedgerNodeVO>> listLedgerTree(@RequestParam(value = "keyword", required = false) String keyword) {
+        String methodDescribe = getMethodDescribe("listLedgerTree");
+        LogUtil.njcnDebug(log, "{}，开始查询稳态趋势台账树，keyword={}", methodDescribe, keyword);
+        List<SteadyDataViewLedgerNodeVO> result = ledgerService.listLedgerTree(keyword);
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/controller/SteadyDataViewTrendController.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/controller/SteadyDataViewTrendController.java
@@ -0,0 +1,64 @@
+package com.njcn.gather.steady.datavie.controller;
+
+import com.njcn.common.pojo.annotation.OperateInfo;
+import com.njcn.common.pojo.enums.common.LogEnum;
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.response.HttpResult;
+import com.njcn.common.utils.LogUtil;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyTrendQueryParam;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendQueryVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendSummaryVO;
+import com.njcn.gather.steady.datavie.service.SteadyDataViewTrendService;
+import com.njcn.web.controller.BaseController;
+import com.njcn.web.utils.HttpResultUtil;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * 稳态趋势查询接口。
+ */
+@Slf4j
+@Api(tags = "稳态趋势查询")
+@RestController
+@RequestMapping("/steady/data-view/trend")
+@RequiredArgsConstructor
+public class SteadyDataViewTrendController extends BaseController {
+
+    private final SteadyDataViewTrendService trendService;
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("查询稳态趋势")
+    @PostMapping("/query")
+    public HttpResult<SteadyTrendQueryVO> queryTrend(@RequestBody SteadyTrendQueryParam param) {
+        String methodDescribe = getMethodDescribe("queryTrend");
+        LogUtil.njcnDebug(log, "{}，开始查询稳态趋势，param={}", methodDescribe, param);
+        SteadyTrendQueryVO result = trendService.queryTrend(param);
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("按天查询稳态趋势")
+    @PostMapping("/day")
+    public HttpResult<SteadyTrendQueryVO> queryTrendDay(@RequestBody SteadyTrendQueryParam param) {
+        String methodDescribe = getMethodDescribe("queryTrendDay");
+        LogUtil.njcnDebug(log, "{}，开始按天查询稳态趋势，param={}", methodDescribe, param);
+        SteadyTrendQueryVO result = trendService.queryTrendDay(param);
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("查询稳态趋势统计摘要")
+    @PostMapping("/summary")
+    public HttpResult<SteadyTrendSummaryVO> summarizeTrend(@RequestBody SteadyTrendQueryParam param) {
+        String methodDescribe = getMethodDescribe("summarizeTrend");
+        LogUtil.njcnDebug(log, "{}，开始查询稳态趋势统计摘要，param={}", methodDescribe, param);
+        SteadyTrendSummaryVO result = trendService.summarizeTrend(param);
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/mapper/SteadyDataViewLedgerMapper.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/mapper/SteadyDataViewLedgerMapper.java
@@ -0,0 +1,14 @@
+package com.njcn.gather.steady.datavie.mapper;
+
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyDataViewLedgerRowBO;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+/**
+ * 稳态趋势台账树 Mapper。
+ */
+public interface SteadyDataViewLedgerMapper {
+
+    List<SteadyDataViewLedgerRowBO> selectLedgerTree(@Param("keyword") String keyword);
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/mapper/SteadyDataViewMapper.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/mapper/SteadyDataViewMapper.java
@@ -0,0 +1,25 @@
+package com.njcn.gather.steady.datavie.mapper;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyDataViewQueryParam;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 稳态数据查看 Mapper。
+ */
+public interface SteadyDataViewMapper {
+
+    Page<Map<String, Object>> selectSteadyPage(Page<Map<String, Object>> page,
+                                               @Param("tableName") String tableName,
+                                               @Param("columns") List<String> columns,
+                                               @Param("param") SteadyDataViewQueryParam param);
+
+    Map<String, Object> selectSteadyDetail(@Param("tableName") String tableName,
+                                           @Param("columns") List<String> columns,
+                                           @Param("lineId") String lineId,
+                                           @Param("timeId") String timeId,
+                                           @Param("phasicType") String phasicType);
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/mapper/mapping/SteadyDataViewLedgerMapper.xml
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/mapper/mapping/SteadyDataViewLedgerMapper.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.njcn.gather.steady.datavie.mapper.SteadyDataViewLedgerMapper">
+
+    <select id="selectLedgerTree" resultType="com.njcn.gather.steady.datavie.pojo.bo.SteadyDataViewLedgerRowBO">
+        SELECT ledger.Id AS id,
+               ledger.Pid AS parentId,
+               ledger.Name AS name,
+               ledger.Level AS level,
+               ledger.Sort AS sort,
+               (
+                   SELECT COUNT(DISTINCT equipment.id)
+                   FROM cs_ledger equipment_ledger
+                            INNER JOIN cs_equipment_delivery equipment ON equipment.id = equipment_ledger.Id
+                   WHERE equipment_ledger.State = 1
+                     AND equipment_ledger.Level = 2
+                     AND equipment.run_status &lt;&gt; 0
+                     AND (equipment_ledger.Id = ledger.Id OR FIND_IN_SET(ledger.Id, equipment_ledger.Pids) &gt; 0)
+               ) AS deviceCount,
+               (
+                   SELECT COUNT(DISTINCT line.line_id)
+                   FROM cs_ledger line_ledger
+                            INNER JOIN cs_line line ON line.line_id = line_ledger.Id
+                            INNER JOIN cs_equipment_delivery equipment ON equipment.id = line.device_id
+                   WHERE line_ledger.State = 1
+                     AND line_ledger.Level = 3
+                     AND line.status = 1
+                     AND equipment.run_status &lt;&gt; 0
+                     AND (line_ledger.Id = ledger.Id OR FIND_IN_SET(ledger.Id, line_ledger.Pids) &gt; 0)
+               ) AS lineCount
+        FROM cs_ledger ledger
+        WHERE ledger.State = 1
+        <if test="keyword != null and keyword != ''">
+          AND (
+              ledger.Name LIKE CONCAT('%', #{keyword}, '%')
+              OR EXISTS (
+                  SELECT 1
+                  FROM cs_ledger child
+                  WHERE child.State = 1
+                    AND FIND_IN_SET(ledger.Id, child.Pids) &gt; 0
+                    AND child.Name LIKE CONCAT('%', #{keyword}, '%')
+              )
+          )
+        </if>
+        ORDER BY ledger.Level ASC, ledger.Sort ASC, ledger.Name ASC
+    </select>
+</mapper>
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/mapper/mapping/SteadyDataViewMapper.xml
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/mapper/mapping/SteadyDataViewMapper.xml
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.njcn.gather.steady.datavie.mapper.SteadyDataViewMapper">
+
+    <sql id="SteadyDataWhere">
+        <where>
+            <if test="param.timeStart != null and param.timeStart != ''">
+                AND TIMEID &gt;= #{param.timeStart}
+            </if>
+            <if test="param.timeEnd != null and param.timeEnd != ''">
+                AND TIMEID &lt;= #{param.timeEnd}
+            </if>
+            <if test="param.phasicType != null and param.phasicType != ''">
+                AND PHASIC_TYPE = #{param.phasicType}
+            </if>
+            <if test="param.qualityFlag != null">
+                AND QUALITYFLAG = #{param.qualityFlag}
+            </if>
+            <if test="param.lineIds != null and param.lineIds.size() &gt; 0">
+                AND LINEID IN
+                <foreach collection="param.lineIds" item="lineId" open="(" separator="," close=")">
+                    #{lineId}
+                </foreach>
+            </if>
+        </where>
+    </sql>
+
+    <select id="selectSteadyPage" resultType="java.util.LinkedHashMap">
+        SELECT
+        <foreach collection="columns" item="column" separator=",">
+            `${column}`
+        </foreach>
+        FROM `${tableName}`
+        <include refid="SteadyDataWhere"/>
+        ORDER BY TIMEID DESC, LINEID ASC, PHASIC_TYPE ASC
+    </select>
+
+    <select id="selectSteadyDetail" resultType="java.util.LinkedHashMap">
+        SELECT
+        <foreach collection="columns" item="column" separator=",">
+            `${column}`
+        </foreach>
+        FROM `${tableName}`
+        WHERE LINEID = #{lineId}
+          AND TIMEID = #{timeId}
+          AND PHASIC_TYPE = #{phasicType}
+        LIMIT 1
+    </select>
+</mapper>
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/bo/SteadyDataViewLedgerRowBO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/bo/SteadyDataViewLedgerRowBO.java
@@ -0,0 +1,28 @@
+package com.njcn.gather.steady.datavie.pojo.bo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 稳态趋势台账树查询行。
+ */
+@Data
+public class SteadyDataViewLedgerRowBO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String id;
+
+    private String parentId;
+
+    private String name;
+
+    private Integer level;
+
+    private Integer sort;
+
+    private Integer deviceCount;
+
+    private Integer lineCount;
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/bo/SteadyTrendIndicatorDefinitionBO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/bo/SteadyTrendIndicatorDefinitionBO.java
@@ -0,0 +1,42 @@
+package com.njcn.gather.steady.datavie.pojo.bo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态趋势指标定义。
+ */
+@Data
+public class SteadyTrendIndicatorDefinitionBO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String indicatorCode;
+
+    private String name;
+
+    private String groupCode;
+
+    private String groupName;
+
+    private String tableName;
+
+    private List<String> phaseCodes = new ArrayList<String>();
+
+    private List<SteadyTrendSeriesFieldBO> seriesFields = new ArrayList<SteadyTrendSeriesFieldBO>();
+
+    private List<String> supportStats = new ArrayList<String>();
+
+    private Boolean harmonic = false;
+
+    private String harmonicFieldPrefix;
+
+    private Integer harmonicOrderStart;
+
+    private Integer harmonicOrderEnd;
+
+    private String unit;
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/bo/SteadyTrendResolvedFieldBO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/bo/SteadyTrendResolvedFieldBO.java
@@ -0,0 +1,36 @@
+package com.njcn.gather.steady.datavie.pojo.bo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 稳态趋势查询字段解析结果。
+ */
+@Data
+public class SteadyTrendResolvedFieldBO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String measurement;
+
+    private String field;
+
+    private String lineId;
+
+    private String lineName;
+
+    private String indicatorCode;
+
+    private String indicatorName;
+
+    private String seriesName;
+
+    private String phase;
+
+    private String statType;
+
+    private String unit;
+
+    private String seriesKey;
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/bo/SteadyTrendSeriesFieldBO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/bo/SteadyTrendSeriesFieldBO.java
@@ -0,0 +1,24 @@
+package com.njcn.gather.steady.datavie.pojo.bo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+
+/**
+ * 稳态趋势指标曲线字段。
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class SteadyTrendSeriesFieldBO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    /** InfluxDB field 基础名。 */
+    private String field;
+
+    /** 曲线展示名称。 */
+    private String name;
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/param/SteadyDataViewDetailParam.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/param/SteadyDataViewDetailParam.java
@@ -0,0 +1,25 @@
+package com.njcn.gather.steady.datavie.pojo.param;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+/**
+ * 稳态数据详情查询参数。
+ */
+@Data
+@ApiModel("稳态数据详情查询参数")
+public class SteadyDataViewDetailParam {
+
+    @ApiModelProperty("表名，对应 add-data 模板表名")
+    private String tableName;
+
+    @ApiModelProperty("监测点 ID")
+    private String lineId;
+
+    @ApiModelProperty("时间，格式 yyyy-MM-dd HH:mm:ss")
+    private String timeId;
+
+    @ApiModelProperty("相别：A/B/C/T")
+    private String phasicType;
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/param/SteadyDataViewQueryParam.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/param/SteadyDataViewQueryParam.java
@@ -0,0 +1,49 @@
+package com.njcn.gather.steady.datavie.pojo.param;
+
+import com.njcn.web.pojo.param.BaseParam;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态数据查看查询参数。
+ */
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ApiModel("稳态数据查看查询参数")
+public class SteadyDataViewQueryParam extends BaseParam {
+
+    @ApiModelProperty("表名，对应 add-data 模板表名")
+    private String tableName;
+
+    @ApiModelProperty("时间开始，格式 yyyy-MM-dd HH:mm:ss")
+    private String timeStart;
+
+    @ApiModelProperty("时间结束，格式 yyyy-MM-dd HH:mm:ss")
+    private String timeEnd;
+
+    @ApiModelProperty("相别：A/B/C/T")
+    private String phasicType;
+
+    @ApiModelProperty("质量标识")
+    private Integer qualityFlag;
+
+    @ApiModelProperty("监测点 ID 列表")
+    private List<String> lineIds = new ArrayList<String>();
+
+    @ApiModelProperty("工程名称关键字")
+    private String engineeringName;
+
+    @ApiModelProperty("项目名称关键字")
+    private String projectName;
+
+    @ApiModelProperty("设备名称关键字")
+    private String equipmentName;
+
+    @ApiModelProperty("监测点名称关键字")
+    private String lineName;
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/param/SteadyTrendQueryParam.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/param/SteadyTrendQueryParam.java
@@ -0,0 +1,43 @@
+package com.njcn.gather.steady.datavie.pojo.param;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态趋势查询参数。
+ */
+@Data
+@ApiModel("稳态趋势查询参数")
+public class SteadyTrendQueryParam {
+
+    @ApiModelProperty("监测点 ID 列表")
+    private List<String> lineIds = new ArrayList<String>();
+
+    @ApiModelProperty("指标编码列表")
+    private List<String> indicatorCodes = new ArrayList<String>();
+
+    @ApiModelProperty("统计类型：AVG/MAX/MIN/CP95")
+    private List<String> statTypes = new ArrayList<String>();
+
+    @ApiModelProperty("相别：A/B/C/T")
+    private List<String> phases = new ArrayList<String>();
+
+    @ApiModelProperty("开始时间，格式 yyyy-MM-dd HH:mm:ss")
+    private String timeStart;
+
+    @ApiModelProperty("结束时间，格式 yyyy-MM-dd HH:mm:ss")
+    private String timeEnd;
+
+    @ApiModelProperty("分桶粒度，如 1m、5m、10m、30m、1h")
+    private String bucket;
+
+    @ApiModelProperty("质量标识")
+    private Integer qualityFlag;
+
+    @ApiModelProperty("谐波次数，谐波指标必填，最多 6 个")
+    private List<Integer> harmonicOrders = new ArrayList<Integer>();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyDataViewIndicatorNodeVO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyDataViewIndicatorNodeVO.java
@@ -0,0 +1,51 @@
+package com.njcn.gather.steady.datavie.pojo.vo;
+
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendSeriesFieldBO;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态趋势指标树节点。
+ */
+@Data
+@ApiModel("稳态趋势指标树节点")
+public class SteadyDataViewIndicatorNodeVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String id;
+
+    private String parentId;
+
+    private String name;
+
+    private String groupCode;
+
+    private String indicatorCode;
+
+    private String tableName;
+
+    private List<String> phaseCodes = new ArrayList<String>();
+
+    private List<SteadyTrendSeriesFieldBO> seriesFields = new ArrayList<SteadyTrendSeriesFieldBO>();
+
+    private List<String> supportStats = new ArrayList<String>();
+
+    private Boolean harmonic = false;
+
+    private Integer harmonicOrderStart;
+
+    private Integer harmonicOrderEnd;
+
+    private String unit;
+
+    @ApiModelProperty("是否可选")
+    private Boolean selectable = false;
+
+    private List<SteadyDataViewIndicatorNodeVO> children = new ArrayList<SteadyDataViewIndicatorNodeVO>();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyDataViewLedgerNodeVO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyDataViewLedgerNodeVO.java
@@ -0,0 +1,36 @@
+package com.njcn.gather.steady.datavie.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态趋势台账树节点。
+ */
+@Data
+@ApiModel("稳态趋势台账树节点")
+public class SteadyDataViewLedgerNodeVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String id;
+
+    private String parentId;
+
+    private String name;
+
+    private Integer level;
+
+    private Integer sort;
+
+    private Integer deviceCount;
+
+    private Integer lineCount;
+
+    private Boolean selectable;
+
+    private List<SteadyDataViewLedgerNodeVO> children = new ArrayList<SteadyDataViewLedgerNodeVO>();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyDataViewTemplateVO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyDataViewTemplateVO.java
@@ -0,0 +1,26 @@
+package com.njcn.gather.steady.datavie.pojo.vo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态数据查看模板。
+ */
+@Data
+public class SteadyDataViewTemplateVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String parameterName;
+
+    private String tableName;
+
+    private String phaseDisplay;
+
+    private List<String> phaseCodes = new ArrayList<String>();
+
+    private List<String> valueColumns = new ArrayList<String>();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyDataViewVO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyDataViewVO.java
@@ -0,0 +1,45 @@
+package com.njcn.gather.steady.datavie.pojo.vo;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.njcn.gather.steady.datavie.config.SteadySecondTimeSerializer;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/**
+ * 稳态数据查看展示对象。
+ */
+@Data
+public class SteadyDataViewVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String tableName;
+
+    private String lineId;
+
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    @JsonDeserialize(using = LocalDateTimeDeserializer.class)
+    @JsonSerialize(using = SteadySecondTimeSerializer.class)
+    private LocalDateTime timeId;
+
+    private String phasicType;
+
+    private Integer qualityFlag;
+
+    private String equipmentName;
+
+    private String engineeringName;
+
+    private String projectName;
+
+    private String lineName;
+
+    private Map<String, Object> values = new LinkedHashMap<String, Object>();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendPointVO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendPointVO.java
@@ -0,0 +1,28 @@
+package com.njcn.gather.steady.datavie.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+/**
+ * 稳态趋势点位。
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@ApiModel("稳态趋势点位")
+public class SteadyTrendPointVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("时间，格式 yyyy-MM-dd HH:mm:ss")
+    private String time;
+
+    @ApiModelProperty("点位值")
+    private BigDecimal value;
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendQueryVO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendQueryVO.java
@@ -0,0 +1,30 @@
+package com.njcn.gather.steady.datavie.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态趋势查询结果。
+ */
+@Data
+@ApiModel("稳态趋势查询结果")
+public class SteadyTrendQueryVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private Boolean sampled;
+
+    private String bucket;
+
+    private Integer sourcePointCount;
+
+    private Integer displayPointCount;
+
+    private List<String> loadableDays = new ArrayList<String>();
+
+    private List<SteadyTrendSeriesVO> series = new ArrayList<SteadyTrendSeriesVO>();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendSeriesVO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendSeriesVO.java
@@ -0,0 +1,38 @@
+package com.njcn.gather.steady.datavie.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态趋势曲线。
+ */
+@Data
+@ApiModel("稳态趋势曲线")
+public class SteadyTrendSeriesVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String seriesKey;
+
+    private String lineId;
+
+    private String lineName;
+
+    private String indicatorCode;
+
+    private String indicatorName;
+
+    private String seriesName;
+
+    private String phase;
+
+    private String statType;
+
+    private String unit;
+
+    private List<SteadyTrendPointVO> points = new ArrayList<SteadyTrendPointVO>();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendSummaryItemVO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendSummaryItemVO.java
@@ -0,0 +1,27 @@
+package com.njcn.gather.steady.datavie.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+/**
+ * 稳态趋势统计项。
+ */
+@Data
+@ApiModel("稳态趋势统计项")
+public class SteadyTrendSummaryItemVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private String seriesKey;
+
+    private BigDecimal max;
+
+    private BigDecimal avg;
+
+    private BigDecimal min;
+
+    private BigDecimal cp95;
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendSummaryVO.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/pojo/vo/SteadyTrendSummaryVO.java
@@ -0,0 +1,20 @@
+package com.njcn.gather.steady.datavie.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 稳态趋势统计结果。
+ */
+@Data
+@ApiModel("稳态趋势统计结果")
+public class SteadyTrendSummaryVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private List<SteadyTrendSummaryItemVO> items = new ArrayList<SteadyTrendSummaryItemVO>();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/SteadyDataViewIndicatorService.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/SteadyDataViewIndicatorService.java
@@ -0,0 +1,13 @@
+package com.njcn.gather.steady.datavie.service;
+
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewIndicatorNodeVO;
+
+import java.util.List;
+
+/**
+ * 稳态趋势指标服务。
+ */
+public interface SteadyDataViewIndicatorService {
+
+    List<SteadyDataViewIndicatorNodeVO> listIndicatorTree();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/SteadyDataViewLedgerService.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/SteadyDataViewLedgerService.java
@@ -0,0 +1,13 @@
+package com.njcn.gather.steady.datavie.service;
+
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewLedgerNodeVO;
+
+import java.util.List;
+
+/**
+ * 稳态趋势台账树服务。
+ */
+public interface SteadyDataViewLedgerService {
+
+    List<SteadyDataViewLedgerNodeVO> listLedgerTree(String keyword);
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/SteadyDataViewService.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/SteadyDataViewService.java
@@ -0,0 +1,21 @@
+package com.njcn.gather.steady.datavie.service;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyDataViewDetailParam;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyDataViewQueryParam;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewTemplateVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewVO;
+
+import java.util.List;
+
+/**
+ * 稳态数据查看服务。
+ */
+public interface SteadyDataViewService {
+
+    Page<SteadyDataViewVO> pageSteadyData(SteadyDataViewQueryParam param);
+
+    SteadyDataViewVO getSteadyDataDetail(SteadyDataViewDetailParam param);
+
+    List<SteadyDataViewTemplateVO> listTemplates();
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/SteadyDataViewTrendService.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/SteadyDataViewTrendService.java
@@ -0,0 +1,17 @@
+package com.njcn.gather.steady.datavie.service;
+
+import com.njcn.gather.steady.datavie.pojo.param.SteadyTrendQueryParam;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendQueryVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendSummaryVO;
+
+/**
+ * 稳态趋势查询服务。
+ */
+public interface SteadyDataViewTrendService {
+
+    SteadyTrendQueryVO queryTrend(SteadyTrendQueryParam param);
+
+    SteadyTrendQueryVO queryTrendDay(SteadyTrendQueryParam param);
+
+    SteadyTrendSummaryVO summarizeTrend(SteadyTrendQueryParam param);
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewIndicatorServiceImpl.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewIndicatorServiceImpl.java
@@ -0,0 +1,60 @@
+package com.njcn.gather.steady.datavie.service.impl;
+
+import com.njcn.gather.steady.datavie.component.SteadyTrendIndicatorCatalog;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendIndicatorDefinitionBO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewIndicatorNodeVO;
+import com.njcn.gather.steady.datavie.service.SteadyDataViewIndicatorService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 稳态趋势指标服务实现。
+ */
+@Service
+@RequiredArgsConstructor
+public class SteadyDataViewIndicatorServiceImpl implements SteadyDataViewIndicatorService {
+
+    private final SteadyTrendIndicatorCatalog indicatorCatalog;
+
+    @Override
+    public List<SteadyDataViewIndicatorNodeVO> listIndicatorTree() {
+        Map<String, SteadyDataViewIndicatorNodeVO> groupMap = new LinkedHashMap<String, SteadyDataViewIndicatorNodeVO>();
+        for (SteadyTrendIndicatorDefinitionBO indicator : indicatorCatalog.listIndicators()) {
+            SteadyDataViewIndicatorNodeVO groupNode = groupMap.get(indicator.getGroupCode());
+            if (groupNode == null) {
+                groupNode = new SteadyDataViewIndicatorNodeVO();
+                groupNode.setId(indicator.getGroupCode());
+                groupNode.setName(indicator.getGroupName());
+                groupNode.setGroupCode(indicator.getGroupCode());
+                groupNode.setSelectable(false);
+                groupMap.put(indicator.getGroupCode(), groupNode);
+            }
+            groupNode.getChildren().add(buildIndicatorNode(indicator, groupNode.getId()));
+        }
+        return new ArrayList<SteadyDataViewIndicatorNodeVO>(groupMap.values());
+    }
+
+    private SteadyDataViewIndicatorNodeVO buildIndicatorNode(SteadyTrendIndicatorDefinitionBO indicator, String parentId) {
+        SteadyDataViewIndicatorNodeVO node = new SteadyDataViewIndicatorNodeVO();
+        node.setId(indicator.getIndicatorCode());
+        node.setParentId(parentId);
+        node.setName(indicator.getName());
+        node.setGroupCode(indicator.getGroupCode());
+        node.setIndicatorCode(indicator.getIndicatorCode());
+        node.setTableName(indicator.getTableName());
+        node.setPhaseCodes(new ArrayList<String>(indicator.getPhaseCodes()));
+        node.setSeriesFields(new ArrayList<com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendSeriesFieldBO>(indicator.getSeriesFields()));
+        node.setSupportStats(new ArrayList<String>(indicator.getSupportStats()));
+        node.setHarmonic(indicator.getHarmonic());
+        node.setHarmonicOrderStart(indicator.getHarmonicOrderStart());
+        node.setHarmonicOrderEnd(indicator.getHarmonicOrderEnd());
+        node.setUnit(indicator.getUnit());
+        node.setSelectable(true);
+        return node;
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewLedgerServiceImpl.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewLedgerServiceImpl.java
@@ -0,0 +1,70 @@
+package com.njcn.gather.steady.datavie.service.impl;
+
+import com.njcn.gather.steady.datavie.mapper.SteadyDataViewLedgerMapper;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyDataViewLedgerRowBO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewLedgerNodeVO;
+import com.njcn.gather.steady.datavie.service.SteadyDataViewLedgerService;
+import com.njcn.gather.tool.addledger.pojo.constant.AddLedgerConst;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 稳态趋势台账树服务实现。
+ */
+@Service
+@RequiredArgsConstructor
+public class SteadyDataViewLedgerServiceImpl implements SteadyDataViewLedgerService {
+
+    private final SteadyDataViewLedgerMapper ledgerMapper;
+
+    @Override
+    public List<SteadyDataViewLedgerNodeVO> listLedgerTree(String keyword) {
+        List<SteadyDataViewLedgerRowBO> rows = ledgerMapper.selectLedgerTree(trimToNull(keyword));
+        Map<String, SteadyDataViewLedgerNodeVO> nodeMap = new LinkedHashMap<String, SteadyDataViewLedgerNodeVO>();
+        for (SteadyDataViewLedgerRowBO row : rows) {
+            SteadyDataViewLedgerNodeVO node = new SteadyDataViewLedgerNodeVO();
+            node.setId(row.getId());
+            node.setParentId(row.getParentId());
+            node.setName(row.getName());
+            node.setLevel(row.getLevel());
+            node.setSort(row.getSort());
+            node.setDeviceCount(row.getDeviceCount() == null ? 0 : row.getDeviceCount());
+            node.setLineCount(row.getLineCount() == null ? 0 : row.getLineCount());
+            node.setSelectable(AddLedgerConst.LEVEL_EQUIPMENT == row.getLevel() || AddLedgerConst.LEVEL_LINE == row.getLevel());
+            nodeMap.put(node.getId(), node);
+        }
+        List<SteadyDataViewLedgerNodeVO> roots = new ArrayList<SteadyDataViewLedgerNodeVO>();
+        for (SteadyDataViewLedgerNodeVO node : nodeMap.values()) {
+            SteadyDataViewLedgerNodeVO parent = nodeMap.get(node.getParentId());
+            if (parent == null || AddLedgerConst.ROOT_PARENT_ID.equals(node.getParentId())) {
+                roots.add(node);
+            } else {
+                parent.getChildren().add(node);
+            }
+        }
+        sortTree(roots);
+        return roots;
+    }
+
+    private void sortTree(List<SteadyDataViewLedgerNodeVO> nodes) {
+        nodes.sort(Comparator.comparing(SteadyDataViewLedgerNodeVO::getSort, Comparator.nullsLast(Integer::compareTo))
+                .thenComparing(SteadyDataViewLedgerNodeVO::getName, Comparator.nullsLast(String::compareTo)));
+        for (SteadyDataViewLedgerNodeVO node : nodes) {
+            sortTree(node.getChildren());
+        }
+    }
+
+    private String trimToNull(String value) {
+        if (value == null) {
+            return null;
+        }
+        String trimmed = value.trim();
+        return trimmed.isEmpty() ? null : trimmed;
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewServiceImpl.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewServiceImpl.java
@@ -0,0 +1,352 @@
+package com.njcn.gather.steady.datavie.service.impl;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.exception.BusinessException;
+import com.njcn.gather.steady.datavie.mapper.SteadyDataViewMapper;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyDataViewDetailParam;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyDataViewQueryParam;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewTemplateVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewVO;
+import com.njcn.gather.steady.datavie.service.SteadyDataViewService;
+import com.njcn.gather.tool.adddata.component.AddDataTableRegistry;
+import com.njcn.gather.tool.adddata.component.AddDataTemplateRegistry;
+import com.njcn.gather.tool.adddata.pojo.bo.AddDataTableDefinition;
+import com.njcn.gather.tool.adddata.pojo.vo.AddDataTemplateVO;
+import com.njcn.gather.tool.addledger.pojo.param.AddLedgerLinePathQueryParam;
+import com.njcn.gather.tool.addledger.pojo.vo.AddLedgerLinePathVO;
+import com.njcn.gather.tool.addledger.service.AddLedgerService;
+import com.njcn.web.factory.PageFactory;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import java.sql.Timestamp;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 稳态数据查看服务实现。
+ */
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class SteadyDataViewServiceImpl implements SteadyDataViewService {
+
+    private static final int LEDGER_LINE_QUERY_LIMIT = 1000;
+    private static final int STEADY_LINE_ID_QUERY_LIMIT = 1000;
+    private static final String DEFAULT_TABLE_NAME = "data_v";
+    private static final String EMPTY_TEXT = "-";
+    private static final DateTimeFormatter OUTPUT_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+    private static final DateTimeFormatter[] INPUT_FORMATTERS = new DateTimeFormatter[]{
+            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"),
+            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS"),
+            DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss"),
+            DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSS")
+    };
+
+    private final SteadyDataViewMapper steadyDataViewMapper;
+    private final AddLedgerService addLedgerService;
+    private final AddDataTableRegistry addDataTableRegistry;
+    private final AddDataTemplateRegistry addDataTemplateRegistry;
+
+    @Override
+    public Page<SteadyDataViewVO> pageSteadyData(SteadyDataViewQueryParam param) {
+        SteadyDataViewQueryParam queryParam = normalizeQueryParam(param);
+        AddDataTableDefinition definition = resolveTableDefinition(queryParam.getTableName());
+        if (!resolveLineFilter(queryParam)) {
+            return emptyPage(queryParam);
+        }
+        Page<Map<String, Object>> steadyPage = steadyDataViewMapper.selectSteadyPage(
+                new Page<Map<String, Object>>(PageFactory.getPageNum(queryParam), PageFactory.getPageSize(queryParam)),
+                definition.getTableName(), definition.getColumns(), queryParam);
+        List<SteadyDataViewVO> records = buildSteadyDataList(definition.getTableName(), definition.getColumns(), steadyPage.getRecords());
+        Page<SteadyDataViewVO> resultPage = new Page<SteadyDataViewVO>(steadyPage.getCurrent(), steadyPage.getSize(), steadyPage.getTotal());
+        resultPage.setRecords(records);
+        return resultPage;
+    }
+
+    @Override
+    public SteadyDataViewVO getSteadyDataDetail(SteadyDataViewDetailParam param) {
+        if (param == null) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "详情查询参数不能为空");
+        }
+        String tableName = normalizeTableName(param.getTableName());
+        String lineId = trimToNull(param.getLineId());
+        String timeId = normalizeRequiredTime(param.getTimeId(), "时间不能为空");
+        String phasicType = normalizePhasicType(param.getPhasicType());
+        if (lineId == null) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "监测点 ID 不能为空");
+        }
+        if (phasicType == null) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "相别不能为空");
+        }
+        AddDataTableDefinition definition = resolveTableDefinition(tableName);
+        Map<String, Object> row = steadyDataViewMapper.selectSteadyDetail(definition.getTableName(), definition.getColumns(),
+                lineId, timeId, phasicType);
+        if (row == null || row.isEmpty()) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "稳态数据不存在");
+        }
+        List<Map<String, Object>> rows = new ArrayList<Map<String, Object>>();
+        rows.add(row);
+        return buildSteadyDataList(definition.getTableName(), definition.getColumns(), rows).get(0);
+    }
+
+    @Override
+    public List<SteadyDataViewTemplateVO> listTemplates() {
+        List<SteadyDataViewTemplateVO> result = new ArrayList<SteadyDataViewTemplateVO>();
+        for (AddDataTemplateVO template : addDataTemplateRegistry.getTemplates()) {
+            AddDataTableDefinition definition = resolveTableDefinition(template.getTableName());
+            SteadyDataViewTemplateVO vo = new SteadyDataViewTemplateVO();
+            vo.setParameterName(template.getParameterName());
+            vo.setTableName(template.getTableName());
+            vo.setPhaseDisplay(template.getPhaseDisplay());
+            vo.setPhaseCodes(template.getPhaseCodes());
+            vo.setValueColumns(resolveValueColumns(definition.getColumns()));
+            result.add(vo);
+        }
+        return result;
+    }
+
+    private List<SteadyDataViewVO> buildSteadyDataList(String tableName, List<String> columns, List<Map<String, Object>> rows) {
+        if (rows == null || rows.isEmpty()) {
+            return Collections.emptyList();
+        }
+        List<String> lineIds = new ArrayList<String>();
+        for (Map<String, Object> row : rows) {
+            String lineId = trimToNull(toStringValue(row.get("LINEID")));
+            if (lineId != null && !lineIds.contains(lineId)) {
+                lineIds.add(lineId);
+            }
+        }
+        Map<String, AddLedgerLinePathVO> linePathMap = addLedgerService.listLinePathByLineIds(lineIds);
+        List<SteadyDataViewVO> result = new ArrayList<SteadyDataViewVO>();
+        for (Map<String, Object> row : rows) {
+            String lineId = trimToNull(toStringValue(row.get("LINEID")));
+            AddLedgerLinePathVO linePath = linePathMap.get(lineId);
+            result.add(buildSteadyDataVO(tableName, columns, row, linePath));
+        }
+        return result;
+    }
+
+    private SteadyDataViewVO buildSteadyDataVO(String tableName, List<String> columns, Map<String, Object> row, AddLedgerLinePathVO linePath) {
+        SteadyDataViewVO vo = new SteadyDataViewVO();
+        vo.setTableName(tableName);
+        vo.setLineId(toStringValue(row.get("LINEID")));
+        vo.setTimeId(toLocalDateTime(row.get("TIMEID")));
+        vo.setPhasicType(toStringValue(row.get("PHASIC_TYPE")));
+        vo.setQualityFlag(toInteger(row.get("QUALITYFLAG")));
+        vo.setEquipmentName(linePath == null ? EMPTY_TEXT : defaultText(linePath.getEquipmentName()));
+        vo.setEngineeringName(linePath == null ? EMPTY_TEXT : defaultText(linePath.getEngineeringName()));
+        vo.setProjectName(linePath == null ? EMPTY_TEXT : defaultText(linePath.getProjectName()));
+        vo.setLineName(linePath == null ? EMPTY_TEXT : defaultText(linePath.getLineName()));
+        Map<String, Object> values = new LinkedHashMap<String, Object>();
+        for (String column : columns) {
+            if (!isInfrastructureColumn(column)) {
+                values.put(column, row.get(column));
+            }
+        }
+        vo.setValues(values);
+        return vo;
+    }
+
+    private SteadyDataViewQueryParam normalizeQueryParam(SteadyDataViewQueryParam param) {
+        SteadyDataViewQueryParam queryParam = param == null ? new SteadyDataViewQueryParam() : param;
+        queryParam.setTableName(normalizeTableName(queryParam.getTableName()));
+        LocalDateTime startTime = parseDateTime(queryParam.getTimeStart());
+        LocalDateTime endTime = parseDateTime(queryParam.getTimeEnd());
+        if (startTime == null) {
+            LocalDateTime now = LocalDateTime.now();
+            startTime = LocalDateTime.of(now.getYear(), now.getMonth(), 1, 0, 0, 0);
+        }
+        if (endTime == null) {
+            endTime = LocalDateTime.now();
+        }
+        if (startTime.isAfter(endTime)) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "开始时间不能大于结束时间");
+        }
+        queryParam.setTimeStart(OUTPUT_FORMATTER.format(startTime));
+        queryParam.setTimeEnd(OUTPUT_FORMATTER.format(endTime));
+        queryParam.setPhasicType(normalizePhasicType(queryParam.getPhasicType()));
+        validateQualityFlag(queryParam.getQualityFlag());
+        queryParam.setEngineeringName(trimToNull(queryParam.getEngineeringName()));
+        queryParam.setProjectName(trimToNull(queryParam.getProjectName()));
+        queryParam.setEquipmentName(trimToNull(queryParam.getEquipmentName()));
+        queryParam.setLineName(trimToNull(queryParam.getLineName()));
+        List<String> lineIds = normalizeIds(queryParam.getLineIds());
+        if (lineIds.size() > STEADY_LINE_ID_QUERY_LIMIT) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "监测点 ID 查询数量不能超过 1000 个");
+        }
+        queryParam.setLineIds(lineIds);
+        return queryParam;
+    }
+
+    private boolean resolveLineFilter(SteadyDataViewQueryParam queryParam) {
+        if (!hasLedgerKeyword(queryParam)) {
+            return true;
+        }
+        AddLedgerLinePathQueryParam linePathQueryParam = new AddLedgerLinePathQueryParam();
+        linePathQueryParam.setEngineeringName(queryParam.getEngineeringName());
+        linePathQueryParam.setProjectName(queryParam.getProjectName());
+        linePathQueryParam.setEquipmentName(queryParam.getEquipmentName());
+        linePathQueryParam.setLineName(queryParam.getLineName());
+        linePathQueryParam.setLimit(LEDGER_LINE_QUERY_LIMIT + 1);
+        List<String> ledgerLineIds = addLedgerService.listLineIdsByPathQuery(linePathQueryParam);
+        if (ledgerLineIds.size() > LEDGER_LINE_QUERY_LIMIT) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "台账检索匹配监测点过多，请缩小查询条件");
+        }
+        if (ledgerLineIds.isEmpty()) {
+            return false;
+        }
+        List<String> explicitLineIds = normalizeIds(queryParam.getLineIds());
+        if (explicitLineIds.isEmpty()) {
+            queryParam.setLineIds(ledgerLineIds);
+            return true;
+        }
+        List<String> intersectLineIds = new ArrayList<String>();
+        for (String lineId : explicitLineIds) {
+            if (ledgerLineIds.contains(lineId)) {
+                intersectLineIds.add(lineId);
+            }
+        }
+        queryParam.setLineIds(intersectLineIds);
+        return !intersectLineIds.isEmpty();
+    }
+
+    private AddDataTableDefinition resolveTableDefinition(String tableName) {
+        try {
+            return addDataTableRegistry.getDefinition(tableName);
+        } catch (IllegalArgumentException ex) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "稳态数据表不支持：" + tableName);
+        }
+    }
+
+    private String normalizeTableName(String tableName) {
+        String normalizedTableName = trimToNull(tableName);
+        return normalizedTableName == null ? DEFAULT_TABLE_NAME : normalizedTableName;
+    }
+
+    private String normalizeRequiredTime(String value, String emptyMessage) {
+        LocalDateTime dateTime = parseDateTime(value);
+        if (dateTime == null) {
+            throw new BusinessException(CommonResponseEnum.FAIL, emptyMessage);
+        }
+        return OUTPUT_FORMATTER.format(dateTime);
+    }
+
+    private LocalDateTime parseDateTime(String value) {
+        String text = trimToNull(value);
+        if (text == null) {
+            return null;
+        }
+        for (DateTimeFormatter formatter : INPUT_FORMATTERS) {
+            try {
+                return LocalDateTime.parse(text, formatter);
+            } catch (DateTimeParseException ignored) {
+                // 尝试下一个前端可能传入的时间格式。
+            }
+        }
+        throw new BusinessException(CommonResponseEnum.FAIL, "时间格式不正确，仅支持 yyyy-MM-dd HH:mm:ss");
+    }
+
+    private String normalizePhasicType(String phasicType) {
+        String text = trimToNull(phasicType);
+        if (text == null) {
+            return null;
+        }
+        String normalized = text.toUpperCase();
+        if (!"A".equals(normalized) && !"B".equals(normalized) && !"C".equals(normalized) && !"T".equals(normalized)) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "相别只能是 A、B、C、T");
+        }
+        return normalized;
+    }
+
+    private void validateQualityFlag(Integer qualityFlag) {
+        if (qualityFlag != null && qualityFlag != 0 && qualityFlag != 1) {
+            throw new BusinessException(CommonResponseEnum.FAIL, "质量标识只能是 0 或 1");
+        }
+    }
+
+    private List<String> normalizeIds(List<String> ids) {
+        if (ids == null || ids.isEmpty()) {
+            return Collections.emptyList();
+        }
+        List<String> normalizedIds = new ArrayList<String>();
+        for (String id : ids) {
+            String normalizedId = trimToNull(id);
+            if (normalizedId != null && !normalizedIds.contains(normalizedId)) {
+                normalizedIds.add(normalizedId);
+            }
+        }
+        return normalizedIds;
+    }
+
+    private boolean hasLedgerKeyword(SteadyDataViewQueryParam queryParam) {
+        return trimToNull(queryParam.getEngineeringName()) != null
+                || trimToNull(queryParam.getProjectName()) != null
+                || trimToNull(queryParam.getEquipmentName()) != null
+                || trimToNull(queryParam.getLineName()) != null;
+    }
+
+    private Page<SteadyDataViewVO> emptyPage(SteadyDataViewQueryParam queryParam) {
+        Page<SteadyDataViewVO> page = new Page<SteadyDataViewVO>(PageFactory.getPageNum(queryParam), PageFactory.getPageSize(queryParam), 0);
+        page.setRecords(Collections.<SteadyDataViewVO>emptyList());
+        return page;
+    }
+
+    private List<String> resolveValueColumns(List<String> columns) {
+        List<String> result = new ArrayList<String>();
+        for (String column : columns) {
+            if (!isInfrastructureColumn(column)) {
+                result.add(column);
+            }
+        }
+        return result;
+    }
+
+    private boolean isInfrastructureColumn(String column) {
+        return "TIMEID".equals(column) || "LINEID".equals(column) || "PHASIC_TYPE".equals(column) || "QUALITYFLAG".equals(column);
+    }
+
+    private LocalDateTime toLocalDateTime(Object value) {
+        if (value instanceof LocalDateTime) {
+            return (LocalDateTime) value;
+        }
+        if (value instanceof Timestamp) {
+            return ((Timestamp) value).toLocalDateTime();
+        }
+        String text = trimToNull(toStringValue(value));
+        return text == null ? null : parseDateTime(text);
+    }
+
+    private Integer toInteger(Object value) {
+        if (value instanceof Number) {
+            return ((Number) value).intValue();
+        }
+        String text = trimToNull(toStringValue(value));
+        return text == null ? null : Integer.valueOf(text);
+    }
+
+    private String toStringValue(Object value) {
+        return value == null ? null : String.valueOf(value);
+    }
+
+    private String defaultText(String value) {
+        String text = trimToNull(value);
+        return text == null ? EMPTY_TEXT : text;
+    }
+
+    private String trimToNull(String value) {
+        if (value == null) {
+            return null;
+        }
+        String trimmed = value.trim();
+        return trimmed.isEmpty() ? null : trimmed;
+    }
+}
--- a/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewTrendServiceImpl.java
+++ b/steady/steady-DataView/src/main/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewTrendServiceImpl.java
@@ -0,0 +1,210 @@
+package com.njcn.gather.steady.datavie.service.impl;
+
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.exception.BusinessException;
+import com.njcn.gather.steady.datavie.component.SteadyInfluxQueryComponent;
+import com.njcn.gather.steady.datavie.component.SteadyTrendFieldResolver;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyTrendQueryParam;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendPointVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendQueryVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendSeriesVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendSummaryItemVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendSummaryVO;
+import com.njcn.gather.steady.datavie.service.SteadyDataViewTrendService;
+import com.njcn.gather.tool.addledger.pojo.vo.AddLedgerLinePathVO;
+import com.njcn.gather.tool.addledger.service.AddLedgerService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.temporal.ChronoUnit;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 稳态趋势查询服务实现。
+ */
+@Service
+@RequiredArgsConstructor
+public class SteadyDataViewTrendServiceImpl implements SteadyDataViewTrendService {
+
+    private static final String EMPTY_TEXT = "-";
+
+    private final SteadyTrendFieldResolver fieldResolver;
+    private final SteadyInfluxQueryComponent influxQueryComponent;
+    private final AddLedgerService addLedgerService;
+
+    @Override
+    public SteadyTrendQueryVO queryTrend(SteadyTrendQueryParam param) {
+        return queryTrendInternal(param, true);
+    }
+
+    @Override
+    public SteadyTrendQueryVO queryTrendDay(SteadyTrendQueryParam param) {
+        return queryTrendInternal(param, true);
+    }
+
+    @Override
+    public SteadyTrendSummaryVO summarizeTrend(SteadyTrendQueryParam param) {
+        SteadyTrendQueryParam summaryParam = copyParam(param);
+        summaryParam.setBucket(null);
+        SteadyTrendQueryVO trend = queryTrendInternal(summaryParam, false);
+        SteadyTrendSummaryVO result = new SteadyTrendSummaryVO();
+        for (SteadyTrendSeriesVO series : trend.getSeries()) {
+            result.getItems().add(buildSummaryItem(series));
+        }
+        return result;
+    }
+
+    private SteadyTrendQueryVO queryTrendInternal(SteadyTrendQueryParam param, boolean autoBucket) {
+        LocalDateTime startTime = fieldResolver.parseRequiredTime(param == null ? null : param.getTimeStart(), "开始时间不能为空");
+        LocalDateTime endTime = fieldResolver.parseRequiredTime(param == null ? null : param.getTimeEnd(), "结束时间不能为空");
+        List<SteadyTrendResolvedFieldBO> fields = fieldResolver.resolveFields(param);
+        enrichLineNames(fields);
+        String bucket = autoBucket ? resolveBucket(param.getBucket(), startTime, endTime) : null;
+
+        SteadyTrendQueryVO result = new SteadyTrendQueryVO();
+        result.setBucket(bucket);
+        result.setSampled(bucket != null);
+        result.setLoadableDays(resolveLoadableDays(startTime, endTime));
+        int displayPointCount = 0;
+        for (SteadyTrendResolvedFieldBO field : fields) {
+            List<SteadyTrendPointVO> points = influxQueryComponent.queryTrendPoints(field, startTime, endTime, bucket, param.getQualityFlag());
+            displayPointCount += points.size();
+            result.getSeries().add(buildSeries(field, points));
+        }
+        /*
+         * 当前 Influx 查询按曲线独立执行，未额外发 count 查询；sourcePointCount 保持与实际返回点数一致。
+         * 后续如需要精确原始点数，可单独增加 count(field) 查询。
+         */
+        result.setDisplayPointCount(displayPointCount);
+        result.setSourcePointCount(displayPointCount);
+        return result;
+    }
+
+    private SteadyTrendSeriesVO buildSeries(SteadyTrendResolvedFieldBO field, List<SteadyTrendPointVO> points) {
+        SteadyTrendSeriesVO series = new SteadyTrendSeriesVO();
+        series.setSeriesKey(field.getSeriesKey());
+        series.setLineId(field.getLineId());
+        series.setLineName(field.getLineName());
+        series.setIndicatorCode(field.getIndicatorCode());
+        series.setIndicatorName(field.getIndicatorName());
+        series.setSeriesName(field.getSeriesName());
+        series.setPhase(field.getPhase());
+        series.setStatType(field.getStatType());
+        series.setUnit(field.getUnit());
+        series.setPoints(points);
+        return series;
+    }
+
+    private void enrichLineNames(List<SteadyTrendResolvedFieldBO> fields) {
+        List<String> lineIds = new ArrayList<String>();
+        for (SteadyTrendResolvedFieldBO field : fields) {
+            if (!lineIds.contains(field.getLineId())) {
+                lineIds.add(field.getLineId());
+            }
+        }
+        Map<String, AddLedgerLinePathVO> linePathMap = addLedgerService.listLinePathByLineIds(lineIds);
+        for (SteadyTrendResolvedFieldBO field : fields) {
+            AddLedgerLinePathVO linePath = linePathMap.get(field.getLineId());
+            field.setLineName(linePath == null || trimToNull(linePath.getLineName()) == null ? EMPTY_TEXT : linePath.getLineName());
+        }
+    }
+
+    private SteadyTrendSummaryItemVO buildSummaryItem(SteadyTrendSeriesVO series) {
+        SteadyTrendSummaryItemVO item = new SteadyTrendSummaryItemVO();
+        item.setSeriesKey(series.getSeriesKey());
+        List<BigDecimal> values = new ArrayList<BigDecimal>();
+        for (SteadyTrendPointVO point : series.getPoints()) {
+            if (point.getValue() != null) {
+                values.add(point.getValue());
+            }
+        }
+        if (values.isEmpty()) {
+            return item;
+        }
+        values.sort(Comparator.naturalOrder());
+        BigDecimal sum = BigDecimal.ZERO;
+        for (BigDecimal value : values) {
+            sum = sum.add(value);
+        }
+        item.setMin(values.get(0));
+        item.setMax(values.get(values.size() - 1));
+        item.setAvg(sum.divide(new BigDecimal(values.size()), 6, RoundingMode.HALF_UP));
+        int cp95Index = Math.max(0, (int) Math.ceil(values.size() * 0.95D) - 1);
+        item.setCp95(values.get(cp95Index));
+        return item;
+    }
+
+    private String resolveBucket(String requestBucket, LocalDateTime startTime, LocalDateTime endTime) {
+        String bucket = trimToNull(requestBucket);
+        if (bucket != null) {
+            if (!bucket.matches("^[1-9][0-9]*(m|h|d)$")) {
+                throw fail("分桶粒度仅支持 m、h、d，例如 10m、1h");
+            }
+            return bucket;
+        }
+        long hours = ChronoUnit.HOURS.between(startTime, endTime);
+        if (hours < 6) {
+            return "1m";
+        }
+        if (hours <= 24) {
+            return "10m";
+        }
+        if (hours <= 24 * 7) {
+            return "30m";
+        }
+        return "1h";
+    }
+
+    private List<String> resolveLoadableDays(LocalDateTime startTime, LocalDateTime endTime) {
+        List<String> result = new ArrayList<String>();
+        LocalDate date = startTime.toLocalDate();
+        LocalDate endDate = endTime.toLocalDate();
+        while (!date.isAfter(endDate)) {
+            result.add(date.toString());
+            date = date.plusDays(1);
+        }
+        return result;
+    }
+
+    private SteadyTrendQueryParam copyParam(SteadyTrendQueryParam source) {
+        SteadyTrendQueryParam target = new SteadyTrendQueryParam();
+        if (source == null) {
+            return target;
+        }
+        target.setLineIds(copyList(source.getLineIds()));
+        target.setIndicatorCodes(copyList(source.getIndicatorCodes()));
+        target.setStatTypes(copyList(source.getStatTypes()));
+        target.setPhases(copyList(source.getPhases()));
+        target.setTimeStart(source.getTimeStart());
+        target.setTimeEnd(source.getTimeEnd());
+        target.setBucket(source.getBucket());
+        target.setQualityFlag(source.getQualityFlag());
+        target.setHarmonicOrders(source.getHarmonicOrders() == null ? Collections.<Integer>emptyList() : new ArrayList<Integer>(source.getHarmonicOrders()));
+        return target;
+    }
+
+    private List<String> copyList(List<String> source) {
+        return source == null ? new ArrayList<String>() : new ArrayList<String>(source);
+    }
+
+    private String trimToNull(String value) {
+        if (value == null) {
+            return null;
+        }
+        String trimmed = value.trim();
+        return trimmed.isEmpty() ? null : trimmed;
+    }
+
+    private BusinessException fail(String message) {
+        return new BusinessException(CommonResponseEnum.FAIL, message);
+    }
+}
--- a/steady/steady-DataView/src/test/java/com/njcn/gather/steady/datavie/component/SteadyInfluxQueryComponentTest.java
+++ b/steady/steady-DataView/src/test/java/com/njcn/gather/steady/datavie/component/SteadyInfluxQueryComponentTest.java
@@ -0,0 +1,51 @@
+package com.njcn.gather.steady.datavie.component;
+
+import com.njcn.gather.steady.datavie.config.SteadyInfluxDbProperties;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+
+/**
+ * InfluxQL 查询语句生成测试。
+ */
+class SteadyInfluxQueryComponentTest {
+
+    @Test
+    void shouldBuildBucketedTrendQueryWithRequiredTags() {
+        SteadyInfluxQueryComponent component = new SteadyInfluxQueryComponent(new SteadyInfluxDbProperties());
+        SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+        field.setMeasurement("data_v");
+        field.setField("RMS_CP95");
+        field.setLineId("line-001");
+        field.setPhase("A");
+
+        String query = component.buildTrendQuery(field,
+                LocalDateTime.of(2026, 5, 1, 0, 0, 0),
+                LocalDateTime.of(2026, 5, 1, 1, 0, 0),
+                "10m",
+                1);
+
+        Assertions.assertEquals("SELECT mean(\"RMS_CP95\") AS \"value\" FROM \"data_v\" WHERE time >= '2026-05-01T00:00:00Z' AND time <= '2026-05-01T01:00:00Z' AND \"LINEID\" = 'line-001' AND \"PHASIC_TYPE\" = 'A' AND \"QUALITYFLAG\" = '1' GROUP BY time(10m) fill(none)", query);
+    }
+
+    @Test
+    void shouldEscapeTagValuesInTrendQuery() {
+        SteadyInfluxQueryComponent component = new SteadyInfluxQueryComponent(new SteadyInfluxDbProperties());
+        SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+        field.setMeasurement("data_v");
+        field.setField("RMS");
+        field.setLineId("line'001");
+        field.setPhase("A");
+
+        String query = component.buildTrendQuery(field,
+                LocalDateTime.of(2026, 5, 1, 0, 0, 0),
+                LocalDateTime.of(2026, 5, 1, 1, 0, 0),
+                null,
+                null);
+
+        Assertions.assertTrue(query.contains("\"LINEID\" = 'line\\'001'"));
+        Assertions.assertFalse(query.contains("GROUP BY time"));
+    }
+}
--- a/steady/steady-DataView/src/test/java/com/njcn/gather/steady/datavie/component/SteadyTrendFieldResolverTest.java
+++ b/steady/steady-DataView/src/test/java/com/njcn/gather/steady/datavie/component/SteadyTrendFieldResolverTest.java
@@ -0,0 +1,99 @@
+package com.njcn.gather.steady.datavie.component;
+
+import com.njcn.common.pojo.exception.BusinessException;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyTrendQueryParam;
+import com.njcn.gather.tool.adddata.component.AddDataTableRegistry;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * 稳态趋势字段解析测试。
+ */
+class SteadyTrendFieldResolverTest {
+
+    private SteadyTrendFieldResolver resolver;
+
+    @BeforeEach
+    void setUp() throws Exception {
+        AddDataTableRegistry tableRegistry = new AddDataTableRegistry();
+        tableRegistry.afterPropertiesSet();
+        resolver = new SteadyTrendFieldResolver(new SteadyTrendIndicatorCatalog(), tableRegistry);
+    }
+
+    @Test
+    void shouldResolveVoltageRmsAverageAndCp95Fields() {
+        SteadyTrendQueryParam param = new SteadyTrendQueryParam();
+        param.setLineIds(Arrays.asList("line-001"));
+        param.setIndicatorCodes(Arrays.asList("V_RMS"));
+        param.setPhases(Arrays.asList("A"));
+        param.setStatTypes(Arrays.asList("AVG", "CP95"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 01:00:00");
+
+        List<SteadyTrendResolvedFieldBO> fields = resolver.resolveFields(param);
+
+        Assertions.assertEquals(2, fields.size());
+        Assertions.assertEquals("data_v", fields.get(0).getMeasurement());
+        Assertions.assertEquals("RMS", fields.get(0).getField());
+        Assertions.assertEquals("AVG", fields.get(0).getStatType());
+        Assertions.assertEquals("RMS_CP95", fields.get(1).getField());
+        Assertions.assertEquals("V", fields.get(1).getUnit());
+    }
+
+    @Test
+    void shouldExpandLineVoltageTotalPhaseToThreeSeries() {
+        SteadyTrendQueryParam param = new SteadyTrendQueryParam();
+        param.setLineIds(Arrays.asList("line-001"));
+        param.setIndicatorCodes(Arrays.asList("V_LINE_RMS"));
+        param.setPhases(Arrays.asList("T"));
+        param.setStatTypes(Arrays.asList("AVG"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 01:00:00");
+
+        List<SteadyTrendResolvedFieldBO> fields = resolver.resolveFields(param);
+
+        Assertions.assertEquals(3, fields.size());
+        Assertions.assertEquals("RMSAB", fields.get(0).getField());
+        Assertions.assertEquals("RMSBC", fields.get(1).getField());
+        Assertions.assertEquals("RMSCA", fields.get(2).getField());
+        Assertions.assertEquals("T", fields.get(0).getPhase());
+    }
+
+    @Test
+    void shouldRejectHarmonicTrendWithoutOrders() {
+        SteadyTrendQueryParam param = new SteadyTrendQueryParam();
+        param.setLineIds(Arrays.asList("line-001"));
+        param.setIndicatorCodes(Arrays.asList("V_HARMONIC"));
+        param.setPhases(Arrays.asList("A"));
+        param.setStatTypes(Arrays.asList("AVG"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 01:00:00");
+
+        BusinessException exception = Assertions.assertThrows(BusinessException.class, () -> resolver.resolveFields(param));
+
+        Assertions.assertTrue(exception.getMessage().contains("谐波次数不能为空"));
+    }
+
+    @Test
+    void shouldResolveSelectedHarmonicOrdersOnly() {
+        SteadyTrendQueryParam param = new SteadyTrendQueryParam();
+        param.setLineIds(Arrays.asList("line-001"));
+        param.setIndicatorCodes(Arrays.asList("V_HARMONIC"));
+        param.setPhases(Arrays.asList("A"));
+        param.setStatTypes(Arrays.asList("MAX"));
+        param.setHarmonicOrders(Arrays.asList(3, 5));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 01:00:00");
+
+        List<SteadyTrendResolvedFieldBO> fields = resolver.resolveFields(param);
+
+        Assertions.assertEquals(2, fields.size());
+        Assertions.assertEquals("V_3_MAX", fields.get(0).getField());
+        Assertions.assertEquals("V_5_MAX", fields.get(1).getField());
+    }
+}
--- a/steady/steady-DataView/src/test/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewIndicatorServiceImplTest.java
+++ b/steady/steady-DataView/src/test/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewIndicatorServiceImplTest.java
@@ -0,0 +1,27 @@
+package com.njcn.gather.steady.datavie.service.impl;
+
+import com.njcn.gather.steady.datavie.component.SteadyTrendIndicatorCatalog;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyDataViewIndicatorNodeVO;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+/**
+ * 稳态趋势指标服务测试。
+ */
+class SteadyDataViewIndicatorServiceImplTest {
+
+    @Test
+    void shouldGroupIndicatorsByCategory() {
+        SteadyDataViewIndicatorServiceImpl service = new SteadyDataViewIndicatorServiceImpl(new SteadyTrendIndicatorCatalog());
+
+        List<SteadyDataViewIndicatorNodeVO> tree = service.listIndicatorTree();
+
+        Assertions.assertEquals(5, tree.size());
+        Assertions.assertEquals("VOLTAGE", tree.get(0).getGroupCode());
+        Assertions.assertTrue(tree.get(0).getChildren().size() >= 2);
+        Assertions.assertEquals("V_RMS", tree.get(0).getChildren().get(0).getIndicatorCode());
+        Assertions.assertTrue(tree.get(0).getChildren().get(0).getSelectable());
+    }
+}
--- a/steady/steady-DataView/src/test/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewTrendServiceImplTest.java
+++ b/steady/steady-DataView/src/test/java/com/njcn/gather/steady/datavie/service/impl/SteadyDataViewTrendServiceImplTest.java
@@ -0,0 +1,123 @@
+package com.njcn.gather.steady.datavie.service.impl;
+
+import com.njcn.gather.steady.datavie.component.SteadyInfluxQueryComponent;
+import com.njcn.gather.steady.datavie.component.SteadyTrendFieldResolver;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import com.njcn.gather.steady.datavie.pojo.param.SteadyTrendQueryParam;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendPointVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendQueryVO;
+import com.njcn.gather.steady.datavie.pojo.vo.SteadyTrendSummaryVO;
+import com.njcn.gather.tool.addledger.pojo.vo.AddLedgerLinePathVO;
+import com.njcn.gather.tool.addledger.service.AddLedgerService;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.Collections;
+
+/**
+ * 稳态趋势服务编排测试。
+ */
+class SteadyDataViewTrendServiceImplTest {
+
+    @Test
+    void shouldBuildTrendQueryWithDefaultBucketAndLineName() {
+        SteadyTrendFieldResolver fieldResolver = Mockito.mock(SteadyTrendFieldResolver.class);
+        SteadyInfluxQueryComponent influxQueryComponent = Mockito.mock(SteadyInfluxQueryComponent.class);
+        AddLedgerService addLedgerService = Mockito.mock(AddLedgerService.class);
+
+        SteadyTrendQueryParam param = new SteadyTrendQueryParam();
+        param.setLineIds(Arrays.asList("line-001"));
+        param.setIndicatorCodes(Arrays.asList("V_RMS"));
+        param.setPhases(Arrays.asList("A"));
+        param.setStatTypes(Arrays.asList("AVG"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 05:59:59");
+
+        SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+        field.setMeasurement("data_v");
+        field.setField("RMS");
+        field.setLineId("line-001");
+        field.setIndicatorCode("V_RMS");
+        field.setIndicatorName("相电压有效值");
+        field.setSeriesName("相电压有效值");
+        field.setPhase("A");
+        field.setStatType("AVG");
+        field.setUnit("V");
+        field.setSeriesKey("line-001|V_RMS|A|AVG|RMS");
+
+        Mockito.when(fieldResolver.parseRequiredTime("2026-05-01 00:00:00", "开始时间不能为空"))
+                .thenReturn(LocalDateTime.of(2026, 5, 1, 0, 0, 0));
+        Mockito.when(fieldResolver.parseRequiredTime("2026-05-01 05:59:59", "结束时间不能为空"))
+                .thenReturn(LocalDateTime.of(2026, 5, 1, 5, 59, 59));
+        Mockito.when(fieldResolver.resolveFields(Mockito.any())).thenReturn(Collections.singletonList(field));
+        Mockito.when(addLedgerService.listLinePathByLineIds(Collections.singletonList("line-001")))
+                .thenReturn(Collections.singletonMap("line-001", buildLinePath("进线一")));
+        Mockito.when(influxQueryComponent.queryTrendPoints(Mockito.any(), Mockito.any(), Mockito.any(), Mockito.eq("1m"), Mockito.isNull()))
+                .thenReturn(Collections.singletonList(new SteadyTrendPointVO("2026-05-01 00:00:00", new BigDecimal("1.2"))));
+
+        SteadyDataViewTrendServiceImpl service = new SteadyDataViewTrendServiceImpl(fieldResolver, influxQueryComponent, addLedgerService);
+        SteadyTrendQueryVO result = service.queryTrend(param);
+
+        Assertions.assertEquals("1m", result.getBucket());
+        Assertions.assertTrue(result.getSampled());
+        Assertions.assertEquals("进线一", result.getSeries().get(0).getLineName());
+    }
+
+    @Test
+    void shouldCalculateTrendSummaryFromSeriesPoints() {
+        SteadyTrendFieldResolver fieldResolver = Mockito.mock(SteadyTrendFieldResolver.class);
+        SteadyInfluxQueryComponent influxQueryComponent = Mockito.mock(SteadyInfluxQueryComponent.class);
+        AddLedgerService addLedgerService = Mockito.mock(AddLedgerService.class);
+
+        SteadyTrendQueryParam param = new SteadyTrendQueryParam();
+        param.setLineIds(Arrays.asList("line-001"));
+        param.setIndicatorCodes(Arrays.asList("V_RMS"));
+        param.setPhases(Arrays.asList("A"));
+        param.setStatTypes(Arrays.asList("AVG"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 05:59:59");
+
+        SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+        field.setMeasurement("data_v");
+        field.setField("RMS");
+        field.setLineId("line-001");
+        field.setIndicatorCode("V_RMS");
+        field.setIndicatorName("相电压有效值");
+        field.setSeriesName("相电压有效值");
+        field.setPhase("A");
+        field.setStatType("AVG");
+        field.setUnit("V");
+        field.setSeriesKey("line-001|V_RMS|A|AVG|RMS");
+
+        Mockito.when(fieldResolver.parseRequiredTime(Mockito.anyString(), Mockito.anyString()))
+                .thenReturn(LocalDateTime.of(2026, 5, 1, 0, 0, 0))
+                .thenReturn(LocalDateTime.of(2026, 5, 1, 5, 59, 59));
+        Mockito.when(fieldResolver.resolveFields(param)).thenReturn(Collections.singletonList(field));
+        Mockito.when(addLedgerService.listLinePathByLineIds(Collections.singletonList("line-001")))
+                .thenReturn(Collections.<String, AddLedgerLinePathVO>emptyMap());
+        Mockito.when(influxQueryComponent.queryTrendPoints(Mockito.any(), Mockito.any(), Mockito.any(), Mockito.isNull(), Mockito.isNull()))
+                .thenReturn(Arrays.asList(
+                        new SteadyTrendPointVO("2026-05-01 00:00:00", new BigDecimal("1")),
+                        new SteadyTrendPointVO("2026-05-01 01:00:00", new BigDecimal("3")),
+                        new SteadyTrendPointVO("2026-05-01 02:00:00", new BigDecimal("2"))
+                ));
+
+        SteadyDataViewTrendServiceImpl service = new SteadyDataViewTrendServiceImpl(fieldResolver, influxQueryComponent, addLedgerService);
+        SteadyTrendSummaryVO summary = service.summarizeTrend(param);
+
+        Assertions.assertEquals(new BigDecimal("3"), summary.getItems().get(0).getMax());
+        Assertions.assertEquals(new BigDecimal("1"), summary.getItems().get(0).getMin());
+        Assertions.assertEquals(new BigDecimal("2.000000"), summary.getItems().get(0).getAvg());
+        Assertions.assertEquals(new BigDecimal("3"), summary.getItems().get(0).getCp95());
+    }
+
+    private AddLedgerLinePathVO buildLinePath(String lineName) {
+        AddLedgerLinePathVO linePathVO = new AddLedgerLinePathVO();
+        linePathVO.setLineName(lineName);
+        return linePathVO;
+    }
+}