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UPDATE: 1、异步导出检测数据；2、优化异步数据合并。

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This commit is contained in:
贾同学
2025-09-19 16:17:18 +08:00
parent 1ea09cc52c
commit d18e84159f
6 changed files with 251 additions and 35 deletions
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16
detection/src/main/java/com/njcn/gather/plan/controller/AdPlanController.java
View File

@@ -1,7 +1,9 @@
package com.njcn.gather.plan.controller;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.njcn.common.pojo.annotation.OperateInfo;
import com.njcn.common.pojo.constant.OperateType;
@@ -13,6 +15,7 @@ import com.njcn.common.pojo.response.HttpResult;
import com.njcn.common.utils.LogUtil;
import com.njcn.gather.device.pojo.enums.CommonEnum;
import com.njcn.gather.device.pojo.param.PqDevParam;
import com.njcn.gather.device.pojo.po.PqDev;
import com.njcn.gather.device.pojo.po.PqStandardDev;
import com.njcn.gather.device.pojo.vo.PqDevVO;
import com.njcn.gather.device.service.IPqDevService;
@@ -397,10 +400,17 @@ public class AdPlanController extends BaseController {
@ApiImplicitParam(name = "devIds", value = "被检设备ids", required = true),
@ApiImplicitParam(name = "report", value = "是否导出报告, 0 否，1 是", required = true)
})
public void exportPlanCheckData(@RequestParam("planId") String planId, @RequestParam("devIds") String devIds, @RequestParam("report") Integer report, HttpServletResponse response) {
public HttpResult<Boolean> exportPlanCheckData(@RequestParam("planId") String planId, @RequestParam("devIds") String devIds, @RequestParam("report") Integer report) {
String methodDescribe = getMethodDescribe("exportPlanCheckData");
LogUtil.njcnDebug(log, "{}，导出ID数据为：{} {} {}", methodDescribe, planId, devIds, report);
adPlanService.exportPlanCheckDataZip(planId, StrUtil.split(devIds, StrUtil.COMMA), report, response);
LogUtil.njcnDebug(log, "{}，导出计划ID数据为：{} {} {}", methodDescribe, planId, devIds, report);
// 获取检测计划绑定的被检设备数据
List<PqDev> devList = pqDevService.list(new LambdaQueryWrapper<PqDev>().eq(PqDev::getPlanId, planId).in(PqDev::getId, devIds));
if (CollUtil.isEmpty(devList)) {
throw new BusinessException(CommonResponseEnum.FAIL, "选择的被检设备不存在");
}
asyncPlanHandler.exportPlanCheckDataZip(getUserId(), planId, devList, report);
return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, true, methodDescribe);
}

237
detection/src/main/java/com/njcn/gather/plan/service/AsyncPlanHandler.java
View File

@@ -2,9 +2,12 @@ package com.njcn.gather.plan.service;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.core.util.ZipUtil;
import cn.hutool.json.JSONConfig;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.njcn.common.pojo.enums.response.CommonResponseEnum;
import com.njcn.gather.detection.pojo.po.AdPair;
@@ -13,6 +16,8 @@ import com.njcn.gather.device.pojo.po.PqDev;
import com.njcn.gather.device.pojo.po.PqDevSub;
import com.njcn.gather.device.service.IPqDevService;
import com.njcn.gather.device.service.IPqDevSubService;
import com.njcn.gather.monitor.pojo.po.PqMonitor;
import com.njcn.gather.monitor.service.IPqMonitorService;
import com.njcn.gather.plan.pojo.po.AdPlan;
import com.njcn.gather.plan.pojo.vo.AdPlanCheckDataVO;
import com.njcn.gather.plan.service.util.BatchFileReader;
@@ -33,9 +38,13 @@ import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;
import java.io.File;
import java.time.Duration;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;
@Slf4j
@EnableAsync
@@ -48,20 +57,185 @@ public class AsyncPlanHandler {
private final IPqDevService pqDevService;
private final IDevTypeService devTypeService;
private final IPqDevSubService pqDevSubService;
private final IPqMonitorService pqMonitorService;
private final IAdPariService adPairService;
private final JdbcTemplate jdbcTemplate;
@Value("${report.reportDir}")
private String reportPath;
@Value("${data.homeDir}")
private String dataPath;
private static final int BATCH_SIZE = 10000;
private static final int FINAL_STEP = 85;
private static final String TEST_DATA_DIR = "plan_test_data";
@Async
public void exportPlanCheckDataZip(String uid, String planId, List<PqDev> devList, Integer report) {
NonWebAutoFillValueHandler.setCurrentUserId(uid);
LocalDateTime startTime = LocalDateTime.now();
AdPlanCheckDataVO planCheckDataVO = new AdPlanCheckDataVO();
AtomicInteger progress = new AtomicInteger(0);
AtomicInteger currentProgress = new AtomicInteger(0);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始导出文件"));
// 获取检测计划基本数据
AdPlan plan = adPlanService.getById(planId);
planCheckDataVO.setPlan(plan);
planCheckDataVO.setDevList(devList);
List<String> devIdList = devList.stream().map(PqDev::getId).collect(Collectors.toList());
// 被检设备状态统计
List<PqDevSub> devSubList = pqDevSubService.list(new LambdaQueryWrapper<PqDevSub>().in(PqDevSub::getDevId, devIdList));
planCheckDataVO.setDevSubList(devSubList);
// 被检设备监测点信息
List<PqMonitor> monitorList = pqMonitorService.list(new LambdaQueryWrapper<PqMonitor>().in(PqMonitor::getDevId, devIdList));
planCheckDataVO.setMonitorList(monitorList);
// devMonitorId = 被检设备ID+通道号
List<String> devMonitorIds = new ArrayList<>();
for (PqDev dev : devList) {
List<String> channelNoList = StrUtil.split(dev.getInspectChannel(), StrUtil.COMMA);
for (String channelNo : channelNoList) {
devMonitorIds.add(dev.getId() + StrUtil.UNDERLINE + channelNo);
}
}
planCheckDataVO.setDevMonitorIds(devMonitorIds);
// 设备通道匹对关系
List<AdPair> pairList = adPairService.list(new LambdaQueryWrapper<AdPair>().eq(AdPair::getPlanId, planId).in(AdPair::getDevMonitorId, devMonitorIds));
planCheckDataVO.setPairList(pairList);
progress.addAndGet(1);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "生成检测计划基本信息数据文件中，请耐心等待..."));
// 获取计划检测结果数据表以及数据
Integer code = plan.getCode();
List<String> dataTableNames = CollUtil.newArrayList("ad_harmonic_" + code, "ad_non_harmonic_" + code, "ad_harmonic_result_" + code, "ad_non_harmonic_result_" + code);
// 创建临时目录用于存储文件
File tempDataDir = FileUtil.mkdir(FileUtil.getTmpDirPath() + "plan_test_data_" + System.currentTimeMillis() + "/");
int dataBatch = 0;
int current = 0;
if (CollUtil.isNotEmpty(pairList)) {
for (String dataTableName : dataTableNames) {
// 创建数据文件
String fileName = dataTableName.replace("_" + code, "") + ".txt";
File dataFile = FileUtil.file(tempDataDir, fileName);
// 确保文件存在
FileUtil.touch(dataFile);
// 初始化写入标志，用于判断是否已写入字段名
boolean isFirstWrite = true;
// 分页查询，避免一次性加载大量数据
int pageSize = BATCH_SIZE; // 每页查询10000条记录
int offset = 0;
List<Map<String, Object>> pageData;
do {
dataBatch += 1;
if (current < FINAL_STEP + 5) {
current = Math.min(current + 1, FINAL_STEP + 5);
}
currentProgress.set(current);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress.get() + currentProgress.get(), "生成检测结果数据文件中，请耐心等待..."));
String paginatedSql = buildPaginatedQuery(dataTableName, devMonitorIds, pageSize, offset);
pageData = jdbcTemplate.queryForList(paginatedSql);
// 将当前页数据追加到文件中
if (CollUtil.isNotEmpty(pageData)) {
StringBuilder content = new StringBuilder();
// 如果是第一次写入，先写入字段名
if (isFirstWrite) {
// 获取字段名
Map<String, Object> firstRow = pageData.get(0);
List<String> fieldNames = new ArrayList<>(firstRow.keySet());
// 写入字段名作为第一行
content.append(StrUtil.join("\t", fieldNames)).append(System.lineSeparator());
isFirstWrite = false;
}
// 写入数据行
for (Map<String, Object> data : pageData) {
List<Object> values = new ArrayList<>(data.values());
content.append(StrUtil.join("\t", values)).append(System.lineSeparator());
}
// 追加内容到文件
FileUtil.appendUtf8String(content.toString(), dataFile);
}
offset += pageSize;
} while (pageData.size() == pageSize); // 如果查询结果少于pageSize，说明已经查询完所有数据
}
}
planCheckDataVO.setDataBatch(dataBatch);
int currentVal = progress.get() + currentProgress.get();
if (currentVal < FINAL_STEP + 5) {
progress.addAndGet(FINAL_STEP + 5);
} else {
progress.set(currentVal);
}
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "压缩检测结果数据文件中，请耐心等待..."));
// 导出数据.zip文件
String jsonStr = JSONUtil.toJsonStr(planCheckDataVO, new JSONConfig().setIgnoreNullValue(false));
try {
// 创建 JSON 文件
String jsonFileName = plan.getName() + ".json";
File jsonFile = FileUtil.file(tempDataDir, jsonFileName);
FileUtil.writeUtf8String(jsonStr, jsonFile);
// 创建 ZIP 文件
String zipFileName = plan.getName() + "_检测数据包.zip";
File zipFile = FileUtil.file(dataPath + File.separator + TEST_DATA_DIR + File.separator, zipFileName);
// 添加检测报告文件
if (ObjectUtil.isNotNull(report) && report.equals(1)) {
for (PqDev dev : devList) {
DevType devType = devTypeService.getById(dev.getDevType());
String dirPath = reportPath.concat(File.separator).concat(devType.getName());
File reportFile = new File(dirPath.concat(File.separator).concat(dev.getCreateId()).concat(ReportConstant.DOCX));
// 如果reportFile存在，则将reportFile中的文件添加到已有的zip文件中
if (FileUtil.exist(reportFile)) {
// 复制reportFile到临时目录
FileUtil.copy(reportFile, tempDataDir, true);
}
}
}
// 创建zip文件，包含所有文件
ZipUtil.zip(tempDataDir.getAbsolutePath(), zipFile.getAbsolutePath());
// 删除临时目录
FileUtil.del(tempDataDir);
LocalDateTime endTime = LocalDateTime.now();
log.info("生成数据包完成，耗时: {}s", Duration.between(startTime, endTime).getSeconds());
progress.set(100);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, zipFile.getAbsolutePath()));
} catch (Exception e) {
log.error("生成数据包失败", e);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.FAIL.getCode(), progress.get() + currentProgress.get(), "生成数据包失败"));
} finally {
NonWebAutoFillValueHandler.clearCurrentUserId();
}
sseClient.closeSse(uid);
}
@Transactional
@Async
public void importAndMergePlanCheckData(MultipartFile file, String uid, String planId) {
NonWebAutoFillValueHandler.setCurrentUserId(uid);
AtomicInteger progress = new AtomicInteger();
LocalDateTime startTime = LocalDateTime.now();
AtomicInteger progress = new AtomicInteger(0);
AtomicInteger currentProgress = new AtomicInteger(0);
AtomicInteger dataCount = new AtomicInteger(0);
try {
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始保存文件"));
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始保存文件，请耐心等待..."));
// 创建临时目录用于解压文件
File tempDir = FileUtil.mkdir(FileUtil.getTmpDirPath() + "import_plan_check_data_" + System.currentTimeMillis() + "/");
@@ -69,7 +243,7 @@ public class AsyncPlanHandler {
File zipFile = FileUtil.file(tempDir, file.getOriginalFilename());
file.transferTo(zipFile);
progress.addAndGet(1);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始解压文件"));
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始解压文件，请耐心等待..."));
// 解压zip文件
File unzipDir = FileUtil.mkdir(FileUtil.file(tempDir, "unzip"));
@@ -123,17 +297,17 @@ public class AsyncPlanHandler {
}
if (!StrUtil.equals(planId, subPlan.getFatherPlanId())) {
FileUtil.del(tempDir);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.FAIL.getCode(), progress, "该当前检修计划的子计划"));
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.FAIL.getCode(), progress, "非当前检修计划的子计划"));
return;
}
progress.addAndGet(1);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始同步计划基本信息"));
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始同步计划基本信息，请耐心等待..."));
// 更新检测计划信息
checkPlan.setFatherPlanId(subPlan.getFatherPlanId());
checkPlan.setImportFlag(0);
adPlanService.updateById(checkPlan);
progress.addAndGet(1);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始同步计划设备信息"));
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始同步计划设备信息，请耐心等待..."));
// 批量更新被检设备信息
// 不更新导入标志
@@ -145,7 +319,7 @@ public class AsyncPlanHandler {
pqDevSubService.update(devSub, new LambdaUpdateWrapper<PqDevSub>().eq(PqDevSub::getDevId, devSub.getDevId()));
}
progress.addAndGet(1);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始同步通道配对信息"));
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始同步通道配对信息，请耐心等待..."));
// 同步检测数据
List<AdPair> pairList = planCheckDataVO.getPairList();
@@ -173,7 +347,7 @@ public class AsyncPlanHandler {
AdPlan plan = adPlanService.getById(planId);
Integer planCode = plan.getCode();
progress.addAndGet(1);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始同步检测数据信息"));
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始同步检测数据信息，请耐心等待..."));
// 合并前清除相关表数据
String mainHarmonicTableName = "ad_harmonic_" + planCode;
String mainNonHarmonicTableName = "ad_non_harmonic_" + planCode;
@@ -195,7 +369,8 @@ public class AsyncPlanHandler {
jdbcTemplate.update("DELETE FROM " + mainNonHarmonicResultTableName + " WHERE dev_monitor_id IN (" + devMonitorIdsStr + ")");
}
int dataBatch = planCheckDataVO.getDataBatch();
int step = 80 / (dataBatch + 1);
int stepCount = dataBatch * BATCH_SIZE / FINAL_STEP;
for (File dataFile : dataFiles) {
// 直接插入主计划表中
String fileName = FileUtil.mainName(dataFile);
@@ -206,9 +381,18 @@ public class AsyncPlanHandler {
final boolean[] isFirstBatch = {true};
final String[] headers = {null};
BatchFileReader.readLinesInBatches(dataFile, 10000, lines -> {
progress.addAndGet(step);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "同步检测数据信息中"));
BatchFileReader.readLinesInBatches(dataFile, BATCH_SIZE, lines -> {
dataCount.addAndGet(lines.size());
// 计算当前进度
int current = dataCount.get() / stepCount;
// 确保进度不超过finalStep
if (current > FINAL_STEP) {
current = FINAL_STEP;
}
currentProgress.set(current);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress.get() + currentProgress.get(), "同步检测数据信息中，请耐心等待..."));
if (CollUtil.isNotEmpty(lines)) {
if (isFirstBatch[0]) {
@@ -229,30 +413,47 @@ public class AsyncPlanHandler {
progress.addAndGet(1);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "表 " + tableName + " 数据同步完成"));
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress.get() + currentProgress.get(), "表 " + tableName + " 数据同步完成"));
}
}
progress.addAndGet(1);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始合并检测数据信息"));
// 删除临时目录
FileUtil.del(tempDir);
LocalDateTime endTime = LocalDateTime.now();
log.info("数据合并完成，耗时：{}s", Duration.between(startTime, endTime).getSeconds());
progress.set(100);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "数据合并完成"));
} catch (Exception e) {
log.error("导入数据失败", e);
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.FAIL.getCode(), progress, "导入失败"));
sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.FAIL.getCode(), progress.get() + currentProgress.get(), "导入失败"));
} finally {
NonWebAutoFillValueHandler.clearCurrentUserId();
}
sseClient.closeSse(uid);
}
// 构建分页查询SQL
private String buildPaginatedQuery(String tableName, List<String> devMonitorIds, int limit, int offset) {
StringBuilder sql = new StringBuilder("SELECT * FROM " + tableName);
sql.append(" WHERE Dev_Monitor_Id IN (");
for (int i = 0; i < devMonitorIds.size(); i++) {
sql.append("'").append(devMonitorIds.get(i)).append("'");
if (i < devMonitorIds.size() - 1) {
sql.append(",");
}
}
sql.append(")");
sql.append(" ORDER BY Id");
// 添加分页限制
sql.append(" LIMIT ").append(limit).append(" OFFSET ").append(offset);
return sql.toString();
}
/**
* 处理数据行

10
detection/src/main/java/com/njcn/gather/plan/service/SseClient.java
View File

@@ -85,10 +85,16 @@ public class SseClient {
}
try {
sseEmitter.send(SseEmitter.event().id(messageId).reconnectTime(1 * 60 * 1000L).data(message));
log.info("用户{},消息id:{},推送成功:{}", uid, messageId, message);
// log.info("用户{},消息id:{},推送成功:{}", uid, messageId, message);
return true;
} catch (IOException e) {
log.error("用户{},消息id:{},推送IO异常:{}", uid, messageId, e.getMessage());
// 客户端断开连接属于正常情况，不需要重连，直接移除连接
sseEmitterMap.remove(uid);
sseEmitter.complete();
return false;
} catch (Exception e) {
log.error("用户{},消息id:{},推送异常:{}", uid, messageId, e.getMessage(), e);
log.error("用户{},消息id:{},推送其他异常:{}", uid, messageId, e.getMessage(), e);
sseEmitter.complete();
scheduleReconnect(uid);
return false;

14
detection/src/main/java/com/njcn/gather/plan/service/impl/AdPlanServiceImpl.java
View File

@@ -1827,15 +1827,13 @@ public class AdPlanServiceImpl extends ServiceImpl<AdPlanMapper, AdPlan> impleme
// 更新检测配置
AdPlanTestConfig testConfig = subPlanMetaDataVO.getTestConfig();
testConfig.setPlanId(plan.getId());
if (testConfig != null) {
Integer count = adPlanTestConfigService.lambdaQuery().eq(AdPlanTestConfig::getPlanId, plan.getId()).count();
if (count.intValue() == 0) {
adPlanTestConfigService.save(testConfig);
} else {
adPlanTestConfigService.update(testConfig, new LambdaUpdateWrapper<AdPlanTestConfig>().eq(AdPlanTestConfig::getPlanId, plan.getId()));
}
Integer count = adPlanTestConfigService.lambdaQuery().eq(AdPlanTestConfig::getPlanId, plan.getId()).count();
if (count.intValue() == 0) {
adPlanTestConfigService.save(testConfig);
} else {
adPlanTestConfigService.update(testConfig, new LambdaUpdateWrapper<AdPlanTestConfig>().eq(AdPlanTestConfig::getPlanId, plan.getId()));
}
testConfig.setPlanId(plan.getId());
// 批量更新误差体系
List<PqErrSys> errSysList = subPlanMetaDataVO.getErrSysList();

5
entrance/src/main/resources/application.yml
View File

@@ -6,7 +6,7 @@ spring:
datasource:
druid:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://192.168.1.24:13306/pqs9100?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=Asia/Shanghai
url: jdbc:mysql://192.168.1.24:13306/pqs9100?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true
username: root
password: njcnpqs
# url: jdbc:mysql://localhost:3306/pqs91001?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=CTT
@@ -85,7 +85,8 @@ log:
report:
template: D:\template
reportDir: D:\report
data:
homeDir: D:\data
qr:
cloud: http://pqmcc.com:18082/api/file
dev:

4
system/src/main/java/com/njcn/gather/system/config/WebConfig.java
View File

@@ -36,9 +36,9 @@ public class WebConfig {
public MultipartConfigElement multipartConfigElement() {
MultipartConfigFactory factory = new MultipartConfigFactory();
// 单个文件最大6MB
factory.setMaxFileSize(DataSize.ofMegabytes(6));
factory.setMaxFileSize(DataSize.ofMegabytes(1024));
// 整个请求最大12MB
factory.setMaxRequestSize(DataSize.ofMegabytes(12));
factory.setMaxRequestSize(DataSize.ofMegabytes(2048));
return factory.createMultipartConfig();
}