添加redis配置，将id缓存迁移由缓存移动到redis
This commit is contained in:
hzj
@@ -2,14 +2,11 @@ package com.njcn.influx.config;
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import com.njcn.influx.bo.po.PqDeviceBak;
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import com.njcn.influx.bo.po.PqLineBak;
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import com.njcn.influx.mapper.PqLineBakMapper;
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import com.njcn.influx.service.IPqDeviceBakService;
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import com.njcn.influx.service.PqLineBakService;
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import io.swagger.v3.oas.annotations.servers.Server;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.jdbc.core.JdbcTemplate;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.stereotype.Component;
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import org.springframework.stereotype.Service;
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import javax.annotation.PostConstruct;
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import java.util.HashMap;
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@@ -30,17 +27,23 @@ public class IdMappingCache {
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private PqLineBakService pqLineBakService;
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@Autowired
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private IPqDeviceBakService pqDeviceBakService;
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public static Map<String, String> DevIdMapping = new HashMap<>();
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public static Map<String, String> LineIdMapping = new HashMap<>();
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@Autowired
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private RedisUtil redisUtil;
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@PostConstruct
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public void init() {
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Map<String, String> DevIdMapping = new HashMap<>();
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Map<String, String> LineIdMapping = new HashMap<>();
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List<PqLineBak> resultList = pqLineBakService.list();
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for (PqLineBak row : resultList) {
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String id = row.getId();
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String lineId = row.getLineId();
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LineIdMapping.put(lineId,id );
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}
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redisUtil.saveByKey("LineIdMapping",LineIdMapping);
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List<PqDeviceBak> list = pqDeviceBakService.list();
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for (PqDeviceBak row : list) {
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@@ -48,9 +51,8 @@ public class IdMappingCache {
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String devId = row.getDevId()+"";
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DevIdMapping.put(devId,id );
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}
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redisUtil.saveByKey("DevIdMapping",DevIdMapping);
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}
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// public String getDataById(String id) {
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// return IdMapping.get(id);
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// }
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}
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@@ -0,0 +1,63 @@
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package com.njcn.influx.config;
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import com.fasterxml.jackson.annotation.JsonAutoDetect;
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import com.fasterxml.jackson.annotation.PropertyAccessor;
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import com.fasterxml.jackson.databind.DeserializationFeature;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
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import com.fasterxml.jackson.databind.module.SimpleModule;
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import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
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import com.njcn.influx.utils.InstantDateDeserializer;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
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import org.springframework.data.redis.serializer.StringRedisSerializer;
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import java.time.Instant;
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/**
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* @author hongawen
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* @version 1.0.0
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* @date 2021年12月08日 17:53
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*/
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@Configuration
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public class RedisConfig {
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/**
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* 修改RedisTemplate序列化由JdkSerializationRedisSerializer二进制调整为：JSON格式
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*/
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@Bean("redisTemplate")
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public RedisTemplate<String,Object> redisTemplate(LettuceConnectionFactory lettuceConnectionFactory) {
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// 为了开发方便，一般直接使用<String,object>
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RedisTemplate<String,Object> redisTemplate = new RedisTemplate<>();
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redisTemplate.setConnectionFactory(lettuceConnectionFactory);
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// 用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值
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Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);
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ObjectMapper objectMapper = new ObjectMapper();
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// 指定要序列化的域(field,get,set)，访问修饰符(public,private,protected)
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//解决Java 8 date/time type java.time.Instant not supported
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objectMapper.registerModule(new JavaTimeModule());
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objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
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objectMapper.registerModule(new SimpleModule().addDeserializer(Instant.class, new InstantDateDeserializer()));
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objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
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objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);
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StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
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jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
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// key采用string的序列化方式
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redisTemplate.setKeySerializer(stringRedisSerializer);
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// value序列化方式采用jackson
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redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
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// hash的key采用string的序列化方式
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redisTemplate.setHashKeySerializer(stringRedisSerializer);
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// hash的value序列化方式采用jackson
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redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
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redisTemplate.afterPropertiesSet();
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return redisTemplate;
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}
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}
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@@ -0,0 +1,353 @@
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package com.njcn.influx.config;
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import lombok.RequiredArgsConstructor;
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import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.stereotype.Component;
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import java.util.*;
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import java.util.concurrent.TimeUnit;
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/**
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* @author hongawen
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* @version 1.0.0
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* @date 2021年04月30日 09:38
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*/
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@Component
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@RequiredArgsConstructor
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public class RedisUtil {
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private final RedisTemplate<String, Object> redisTemplate;
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/**
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* 指定key的失效时间
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* 秒级别的过期时间
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*/
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public void expire(String key, long time) {
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redisTemplate.expire(key, time, TimeUnit.SECONDS);
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}
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/**
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* 根据key获取过期时间
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*/
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public long getExpire(String key) {
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Long expireTime = redisTemplate.getExpire(key, TimeUnit.SECONDS);
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return Objects.isNull(expireTime) ? 0 : expireTime;
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}
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/**
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* 根据key获取过期时间(切库，切完之后自动换为原来库)
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*/
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public long getExpire(Integer dbIndex,String key) {
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return getExpire(dbIndex,key,true);
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}
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/**
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* 根据key获取过期时间(切库)true:切回原库 false:不切回原库
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*/
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public long getExpire(Integer dbIndex,String key,Boolean fly) {
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Integer index = setDbIndex(dbIndex);
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Long expireTime = redisTemplate.getExpire(key, TimeUnit.SECONDS);
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if(fly){
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setDbIndex(index);
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}
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return Objects.isNull(expireTime) ? 0 : expireTime;
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}
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/**
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* 判断key是否存在
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*/
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public boolean hasKey(String key) {
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Boolean hasKeyFlag = redisTemplate.hasKey(key);
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if (Objects.isNull(hasKeyFlag)) {
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return false;
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}
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return hasKeyFlag;
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}
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/**
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* 删除某个Key
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*/
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public void delete(String key) {
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redisTemplate.delete(key);
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}
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/**
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* 批量删除keys
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*/
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public void deleteKeys(String... keys) {
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redisTemplate.delete(Arrays.asList(keys));
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}
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/**
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* 指定字符模糊匹配，批量删除keys
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*/
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public void deleteKeysByString(String str) {
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Set<String> keys = redisTemplate.keys(str.concat("*"));
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// 删除所有匹配的key
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if (keys != null && !keys.isEmpty()) {
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redisTemplate.delete(keys);
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}
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}
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/**
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* 获取key对应的字符数据
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*/
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public String getStringByKey(String key) {
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return (String) redisTemplate.opsForValue().get(key);
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}
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/**
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* 根据key和库索引获取内容字(切库之后，之后查询都是切库数据)
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*
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* @param dbIndex 指定库索引
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* @param key key值
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*/
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public String getStringByKey(Integer dbIndex,String key) {
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return getStringByKey(dbIndex,key,true);
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}
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/**
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* 根据key和库索引获取内容字(切库之后，之后查询都是切库数据)
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*
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* @param dbIndex 指定库索引
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* @param key key值
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* @param fly 是否切回原库
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*/
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public String getStringByKey(Integer dbIndex,String key,Boolean fly) {
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Integer index = setDbIndex(dbIndex);
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String s = (String) redisTemplate.opsForValue().get(key);
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if(fly){
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setDbIndex(index);
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}
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return s;
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}
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/**
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* 获取key对应对象数据
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*/
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public Object getObjectByKey(String key) {
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return redisTemplate.opsForValue().get(key);
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}
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/**
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* 保存数据
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*
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* @param key 键
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* @param value 值
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*/
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public void saveByKey(String key, Object value) {
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redisTemplate.boundValueOps(key).set(value);
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}
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/**
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* 保存数据，指定生命周期（秒）
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*
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* @param key 键
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* @param value 值
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* @param expireTime 生命时间
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*/
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public void saveByKeyWithExpire(String key, Object value, Long expireTime) {
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if (expireTime <= 0) {
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saveByKey(key, value);
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} else {
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redisTemplate.boundValueOps(key).set(value, expireTime, TimeUnit.SECONDS);
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}
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}
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/**
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* 保存数据，指定生命周期（秒）
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*
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* @param dbIndex 指定库索引
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* @param key 键
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* @param value 值
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* @param expireTime 生命时间
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* @param expireTime 生命时间
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*/
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public void saveByKeyWithExpire(Integer dbIndex,String key, Object value, Integer expireTime) {
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saveByKeyWithExpire(dbIndex,key,value,expireTime,true);
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}
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/**
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* 保存数据，指定生命周期（秒）
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*
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* @param dbIndex 指定库索引
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* @param key 键
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* @param value 值
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* @param fly 是否切回原库
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*/
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public void saveByKeyWithExpire(Integer dbIndex,String key, Object value, Integer expireTime,Boolean fly) {
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Integer index = setDbIndex(dbIndex);
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if (expireTime <= 0) {
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saveByKey(key, value);
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} else {
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redisTemplate.boundValueOps(key).set(value, expireTime, TimeUnit.SECONDS);
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}
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if(fly){
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setDbIndex(index);
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}
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}
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/**
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* 顺序的递增和递减
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*
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* @param value 增减根据数值的正负来判断
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*/
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public void increment(String key, Long value) {
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redisTemplate.boundValueOps(key).increment(value);
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}
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/**
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* 添加一个Map集合
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*/
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public void saveMapValue(String key, Map<String, ?> map, long expireTime) {
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redisTemplate.boundHashOps(key).putAll(map);
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if (expireTime > 0) {
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expire(key, expireTime);
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}
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}
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/**
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* 获取map中所有的keys
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*/
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public Set<?> getMapKeys(String key) {
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return redisTemplate.boundHashOps(key).keys();
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}
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/**
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* 获取map中所有的values
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*/
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public List<?> getMapValues(String key) {
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return redisTemplate.boundHashOps(key).values();
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}
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/**
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* 根据map中某个key获取对应的value
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*/
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public Object getMapValueByMapKey(String redisKey, String mapKey) {
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return redisTemplate.boundHashOps(redisKey).get(mapKey);
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}
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/**
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* 根据map中的某个key删除对应的value
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*/
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public void deleteMapValueByMapKey(String redisKey, String mapKey) {
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redisTemplate.boundHashOps(redisKey).delete(mapKey);
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}
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/**
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* 判断map中是否有指定的key
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*/
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public boolean hasMapKey(String redisKey, String mapKey) {
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Boolean hasKey = redisTemplate.boundHashOps(redisKey).hasKey(mapKey);
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if (Objects.isNull(hasKey)) {
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return false;
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}
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return hasKey;
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}
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/**
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* 右存放List
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*/
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public void saveRightListByKey(String key, List<?> values, long expireTime) {
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redisTemplate.boundListOps(key).rightPushAll(values);
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if (expireTime > 0) {
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expire(key, expireTime);
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}
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}
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/**
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* 左存放List
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*/
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public void saveLeftListByKey(String key, List<?> values, long expireTime) {
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redisTemplate.boundListOps(key).leftPushAll(values);
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if (expireTime > 0) {
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expire(key, expireTime);
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}
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}
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/**
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* 获取List某范围的值
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*
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* @param start 起始索引
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* @param end 截止索引
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*/
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public List<?> getListRangeValues(String key, long start, long end) {
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long size = getListSize(key);
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if ((start < 0 && end < 0) || (start > end)) {
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start = 0;
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end = size;
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} else if (end > size) {
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end = size;
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} else if (start < 0) {
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start = 0;
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}
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return redisTemplate.boundListOps(key).range(start, end);
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}
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/**
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* 获取List所有数据
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*/
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public List<?> getListAllValues(String key) {
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long size = getListSize(key);
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return redisTemplate.boundListOps(key).range(0, size);
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}
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/**
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* 根据指定索引获取指定value
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*/
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public Object getListValueByIndex(String key, int index) {
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return redisTemplate.boundListOps(key).index(index);
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}
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/**
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* 获取list长度
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*/
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public Long getListSize(String key) {
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return Objects.isNull(redisTemplate.boundListOps(key).size()) ? 0 : redisTemplate.boundListOps(key).size();
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}
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/**
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* 根据索引修改某个值
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*/
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public void updateListValueByIndex(String key, int index, Object newObj) {
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redisTemplate.boundListOps(key).set(index, newObj);
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}
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/**
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* 根据某个key模糊查询,并取出value
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* @param key
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* @return
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*/
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public List<?> getLikeListAllValues(String key) {
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List<Object> info=new ArrayList<>();
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for (String s : redisTemplate.keys(key + "*")) {
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info.add(redisTemplate.opsForValue().get(s));
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}
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return info;
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}
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/**
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* 数据切库
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* @param dbIndex
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* @return
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*/
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private Integer setDbIndex(Integer dbIndex) {
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if (dbIndex == null || dbIndex > 15 || dbIndex < 0) {
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dbIndex = 0;
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}
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LettuceConnectionFactory jedisConnectionFactory = (LettuceConnectionFactory) redisTemplate
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.getConnectionFactory();
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int database = jedisConnectionFactory.getDatabase();
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jedisConnectionFactory.setDatabase(dbIndex);
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redisTemplate.setConnectionFactory(jedisConnectionFactory);
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//需要刷新才能生效
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jedisConnectionFactory.afterPropertiesSet();
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// 重置连接
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jedisConnectionFactory.resetConnection();
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return database;
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}
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}
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Reference in New Issue
Block a user