[TOC] # 目录 ## 前言 > 比较突出的是 Lettuce 和 jedis。Lettuce 和 jedis 的都是连接 Redis Server的客户端，Jedis 在实现上是直连 redis server，多线程环境下非线程安全，除非使用连接池，为每个 redis实例增加 物理连接。<br/> Lettuce 是 一种可伸缩，线程安全，完全非阻塞的Redis客户端，多个线程可以共享一个RedisConnection,它利用Netty NIO 框架来高效地管理多个连接，从而提供了异步和同步数据访问方式，用于构建非阻塞的反应性应用程序。 <font color="red"> **springboot 1.5.x版本的默认的Redis客户端是 Jedis实现 springboot 2.x版本中默认客户端是用 lettuce实现**</font> ### 依赖 ```xml <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-pool2</artifactId> </dependency> ``` ### application.yml ```yml spring: redis: database: 0 # 实例库 host: localhost # redis地址 port: 6369 # redis端口 password: eddie_pass # redis如若没有密码，缺省 timeout: 5000 # 超时时间 lettuce: pool: max-active: 8 max-wait: -1 max-idle: 8 min-idle: 0 ``` ### 配置类 ```java package com.test.common.config; import com.fasterxml.jackson.annotation.JsonAutoDetect; import com.fasterxml.jackson.annotation.PropertyAccessor; import com.fasterxml.jackson.databind.ObjectMapper; import org.springframework.boot.autoconfigure.AutoConfigureAfter; import org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.data.redis.connection.RedisConnectionFactory; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer; import org.springframework.data.redis.serializer.StringRedisSerializer; /** * @author eddie.lee * @className RedisConfigurer * @description * @date created in 2020-11-09 15:14 * @modified by */ @Configuration @AutoConfigureAfter(RedisAutoConfiguration.class) public class RedisConfigurer { @Bean RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) { ObjectMapper mapper = new ObjectMapper(); mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY); mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL); /** * 使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值（默认使用JDK的序列化方式） */ Jackson2JsonRedisSerializer<Object> serializer = new Jackson2JsonRedisSerializer<>(Object.class); serializer.setObjectMapper(mapper); RedisTemplate<String, Object> template = new RedisTemplate<>(); template.setConnectionFactory(redisConnectionFactory); template.setValueSerializer(serializer); template.setKeySerializer(new StringRedisSerializer()); template.setHashKeySerializer(new StringRedisSerializer()); template.setHashValueSerializer(serializer); template.afterPropertiesSet(); return template; } } ```