Redis+SpringBoot+jedis

前言:

             简单搭建web项目,使用技术包括:SpringBoot、MyBatis Plus、Redis

Maven依赖



    com.baomidou
    mybatis-plus-boot-starter
    3.1.1


    com.alibaba
    druid
    1.1.9


    mysql
    mysql-connector-java
    8.0.11
       
        
            redis.clients
            jedis
            3.3.0
        

        
            org.springframework.data
            spring-data-redis
            2.2.7.RELEASE
        
        
            org.apache.commons
            commons-pool2
            2.6.1
        
        
           com.alibaba
           fastjson
           1.2.68
       

配置application.properties

        Redis+SpringBoot+jedis_第1张图片

编写Redis配置类RedisSourceConfig

     

package com.wwy.configuraion;

import com.wwy.api.RedisSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.*;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.connection.jedis.JedisSentinelConnection;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.stereotype.Component;
import redis.clients.jedis.JedisPoolConfig;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

@Configuration
public class RedisSourceConfig {

    // 多个哨兵
    @Value("#{'${redis.sentinel.nodes}'.split(',')}")
    private List nodes;

    @Value("${redis.host}")
    private String host;

    @Value("${redis.port}")
    private String port;

    @Value("${redis.db}")
    private String db;

    @Autowired
    private RedisTemplate redisTemplate;
    
    // 配置链接池信息
    @Bean
    public JedisPoolConfig poolConfig() {
        JedisPoolConfig poolConfig = new JedisPoolConfig();
        poolConfig.setMaxIdle(8);
        poolConfig.setMaxTotal(8);
        poolConfig.setBlockWhenExhausted(true);
        poolConfig.setMaxWaitMillis(30000);
        poolConfig.setTestOnBorrow(true);
        poolConfig.setTestOnReturn(true);
        poolConfig.setTimeBetweenEvictionRunsMillis(1200000);
        poolConfig.setMinEvictableIdleTimeMillis(1800000);
        return poolConfig;
    }

    // 哨兵模式配置 (如果没有用哨兵,请注释)
    @Bean
    public RedisSentinelConfiguration redisSentinelConfiguration(){
        RedisSentinelConfiguration sentinel = new RedisSentinelConfiguration();
        sentinel.setMaster("mymaster");
        Set sentinels = new HashSet<>();
        nodes.forEach(li ->{
            li.toString().split(":");
            // 多个哨兵
            sentinels.add(new RedisNode(li.split(":")[0],Integer.parseInt(li.split(":")[1])));
        });

        sentinel.setSentinels(sentinels);

        return sentinel;
    }
    
    // Redis链接工厂
    @Bean
    public JedisConnectionFactory jedisConnectionFactory(JedisPoolConfig jedisPoolConfig) {
        // 方式一:使用哨兵模式(根据具体情况,选择其中一种即可,可看JedisConnectionFactory 源码,有多种链接方式,如Cluster Redis集群等)
        JedisConnectionFactory jedisFactory = new                JedisConnectionFactory(redisSentinelConfiguration(),jedisPoolConfig);// 配置哨兵
        // Redis哨兵搭建可参考:         https://www.cnblogs.com/maybesuch/p/10257374.html     
        // 方式二:在这没有使用哨兵模式,可以理解为单机根据具体情况,选择其中一种即可,可看JedisConnectionFactory 源码,有多种链接方式,如Cluster Redis集群等)
        //JedisConnectionFactory jedisFactory = new JedisConnectionFactory(); 

        // 工厂链接信息
        jedisFactory.setPoolConfig(jedisPoolConfig);
        //jedisFactory.setHostName(host); // 配置哨兵无需设置
        //jedisFactory.setPort(Integer.parseInt(port)); // 配置哨兵无需设置
        //jedisFactory.setPassword("redis@20191210"); // 在这我是本地,没有设置密码
        jedisFactory.setUsePool(true);
        jedisFactory.setDatabase(Integer.parseInt(db));
        return jedisFactory;
    }


    // 封装Redis的各种操作,如果没有写此方法,在使用private RedisTemplate redisTemplate;会注入失败的
    @Bean
    public RedisTemplate stringSerializerRedisTemplate() {
        RedisSerializer stringSerializer = new StringRedisSerializer();
        redisTemplate.setKeySerializer(stringSerializer);
        redisTemplate.setValueSerializer(stringSerializer);
        redisTemplate.setHashKeySerializer(stringSerializer);
        redisTemplate.setHashValueSerializer(stringSerializer);
        return redisTemplate;
    }
}

Redis key过期事件监听,配置RedisListenerConfig

1、修改redis server 配置文件,开启keyt过期听通知配置

 

2、redis监听配置

Redis+SpringBoot+jedis_第2张图片

3、单独全库redis key过期处理

Redis+SpringBoot+jedis_第3张图片

4、监听redis某个库的过期key,此种方式需要在第2步中的配置中进行配置

Redis+SpringBoot+jedis_第4张图片

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