Biegral Blog

Spring cache @Cacheable 注解 自身并不是支持缓存过期，

@Configuration
@EnableCaching
public class EruptRedisConfig implements Serializable {

    /**
     * 功能描述: 自定义 RedisCacheManager
     *
     * @param: redisConnectionFactory
     * @date: 2021/4/12 11:10
     */
    @Bean
    public RedisCacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
        return new RedisCacheManager(
                RedisCacheWriter.nonLockingRedisCacheWriter(redisConnectionFactory),
                /**
                 * 系统默认值五分钟，单位 秒
                 */
                this.getRedisCacheConfigurationWithTtl(5 * 60),
                this.getRedisCacheConfigurationMap()
        );
    }

    /**
     * 功能描述: 配置自定义cache过期时间
     *
     * @date: 2021/4/12 11:12
     */
    private Map<String, RedisCacheConfiguration> getRedisCacheConfigurationMap() {

        Map<String, RedisCacheConfiguration> redisCacheConfigurationMap = new HashMap<>();
        /**
         * 缓存token解析的用户信息，默认失效时间五分钟
         */
        redisCacheConfigurationMap.put("cache_erupt_user", this.getRedisCacheConfigurationWithTtl(5 * 60));
        /**
         * TODO
         * 其他方法如需缓存以此类推，@Cacheable(value = "cache_user", key = "#token")
         * put(cache_user,expireTime)
         */
        return redisCacheConfigurationMap;
    }

    /**
     * 功能描述: RedisCache 序列化设置
     *
     * @param: seconds 单位 秒
     * @date: 2021/4/12 11:10
     */
    private RedisCacheConfiguration getRedisCacheConfigurationWithTtl(Integer seconds) {
        Jackson2JsonRedisSerializer<Object> 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);
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();
        redisCacheConfiguration = redisCacheConfiguration.serializeValuesWith(
                RedisSerializationContext
                        .SerializationPair
                        .fromSerializer(jackson2JsonRedisSerializer)
        ).entryTtl(Duration.ofSeconds(seconds));
        return redisCacheConfiguration;
    }
}

使用实例

  @Cacheable(value = "cache_erupt_user", key = "#token")
    public EruptUser createOrGetEruptUser(String token) {
  }

整理了几百本各类技术电子书，有需要的同学可以，关注公号回复 [ 666 ] 自取。还有想要加技术群的同学可以加我好友，和大佬侃技术、不定期内推，程序员的内点事这都有。