自定义RedisTemplate和RedisCacheManager

最新推荐文章于 2025-06-04 07:49:28 发布

杜立

最新推荐文章于 2025-06-04 07:49:28 发布

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本文介绍如何将默认的RedisTemplate和RedisCacheManager的序列化方式从JDK改为字符串和JSON，以提升数据存储和读取效率。

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默认的RedisTemplate和RedisCacheManager的使用JDK的序列化方式，可以自定义为string和json序列化

@Configuration
public class MyRedisConfig {

    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory)
            throws UnknownHostException {
        // 为了开发方便，一般使用<String, Object>
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory);

        // Json序列化配置
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();

        // 设置key的序列化方式
        template.setKeySerializer(stringRedisSerializer);

        // 设置hashkey的序列化方式
        template.setHashKeySerializer(stringRedisSerializer);

        // 设置value的序列化方式
        template.setValueSerializer(jackson2JsonRedisSerializer);

        // 设置hashvalue的序列化方式
        template.setHashValueSerializer(jackson2JsonRedisSerializer);

        template.afterPropertiesSet();

        return template;
    }

    @Bean
    public RedisCacheManager myRedisCacheManager(RedisConnectionFactory redisConnectionFactory){
        RedisSerializer<String> redisSerializer = new StringRedisSerializer();

        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);

        // 配置序列化（解决乱码的问题）
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
                .disableCachingNullValues();

        RedisCacheManager cacheManager = RedisCacheManager.builder(redisConnectionFactory).cacheDefaults(config).build();

        return cacheManager;
    }

}