springbioot使用lettuce集成redis

最新推荐文章于 2025-05-13 16:02:27 发布

superlok

最新推荐文章于 2025-05-13 16:02:27 发布

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文章标签： spring boot redis

本文链接：https://blog.youkuaiyun.com/qq_33342904/article/details/114540514

本文介绍了SpringBoot从1.5.x升级到2.x后，默认Redis客户端由Jedis变为Lettuce，并提供了如何配置Lettuce连接池以及自定义RedisTemplate的方法，包括配置项如shutdown-timeout、pool参数，以及序列化方式的设置。同时展示了如何在代码中使用RedisTemplate进行数据存取。

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在 springboot 1.5.x版本的默认的Redis客户端是 Jedis实现的，springboot 2.x版本中默认客户端是用 lettuce实现的。

添加依赖

 <dependencies>
        <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>
</dependencies>

配置

spring:
  redis:
    lettuce:
      shutdown-timeout: 100
      pool:
        max-active: 200
        max-wait: 30
        max-idle: 8
        min-idle: 8
    port: 6379
    cluster:
      nodes: '10.0.17.15:36379,10.0.17.15:36479,10.0.17.15:36579'

自定义redisTemplate

@Configuration
@EnableAutoConfiguration
@Slf4j
public class RedisConfig {

    @Bean("redisTemplate")
    public RedisTemplate<String, Object> getRedisTemplate(LettuceConnectionFactory connectionFactory){
    	RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();
        redisTemplate.setConnectionFactory(connectionFactory);
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        // 设置value的序列化规则
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        // 设置key序列-String序列化
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashValueSerializer(new StringRedisSerializer());
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
}

使用

    public PaidMemberCardDTO findByActiveUser(Long userId) {
        PaidMemberCardDTO card = (PaidMemberCardDTO) redisTemplate.opsForValue().get(RedisConstant.PAID_MEMBER_CARD + userId);
        if (card == null) {
            card = memberCardMapper.findActiveCardByUser(userId);
            redisTemplate.opsForValue().set(RedisConstant.ACTIVE_CARD + userId, 
            }
        }
        return card;
    }