Java springredis缓存实现

我最近在Spring项目中使用以下java配置实现了Redis缓存

    @Configuration
    @EnableCaching
    public class CacheConfig {
        private @Value("${redis.host}") String redisHost;
        private @Value("${redis.port}") int redisPort;

        @Bean
        JedisConnectionFactory jedisConnectionFactory() {
            JedisConnectionFactory factory = new JedisConnectionFactory();
            factory.setHostName(redisHost);
            factory.setPort(redisPort);
            factory.setUsePool(true);
            return factory;
        }

        @Bean
        public ObjectMapper objectMapper() {
            return Jackson2ObjectMapperBuilder.json().serializationInclusion(JsonInclude.Include.NON_NULL) // Don’t include null values
                .featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS) //ISODate
                .build();
        }

        @Bean
        public GenericJackson2JsonRedisSerializer genericJackson2JsonRedisJsonSerializer() {
            GenericJackson2JsonRedisSerializer genericJackson2JsonRedisJsonSerializer = new GenericJackson2JsonRedisSerializer();
            return genericJackson2JsonRedisJsonSerializer;
        }

        @Bean
        RedisTemplate<String, Object> redisTemplate() {
            RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();
            redisTemplate.setConnectionFactory(jedisConnectionFactory());
            redisTemplate.setKeySerializer(new StringRedisSerializer());
            redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
            return redisTemplate;
        }

        @Bean
        CacheManager cacheManager() {
            return new RedisCacheManager(redisTemplate());
        }

---

我需要为每个键设置一个默认TTL。我已经使用redisTemplate.expire（key，timeout，unit）方法来设置TTL，但这需要显式逻辑来缓存每个键，我不想在我的业务方法中这样做。是否有其他方法设置默认TTL？有人能帮我吗。

如果我理解正确，您希望不同的业务方法具有不同的缓存TTL，但不希望在方法中插入该逻辑

这是方面的商标问题。遵循以下步骤

为超时配置创建注释

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface ConfigureTimeout {
    int timeout();
}

注释您的业务方法并在此处提供超时配置

@ConfigureTimeout(timeout = 100)
@Cacheable(value = "supplierConfigResponse", key = "#key")
public String test(String key){
    //your logic
    return null;
}

创建并建议设置过期时间

@Before("execution(@abc.xyz.annotations.ConfigureTimeout * *(String, ..)) && 
@annotation(configureTimeoutAnnotation) && args(key, ..)")
public void setContext(ConfigureTimeout configureTimeoutAnnotation, String key) {
    redisTemplate.expire(key, configureTimeoutAnnotation.timeout(), TimeUnit.SECONDS);
}

@Before("execution(@abc.xyz.annotations.ConfigureTimeout * *(String, ..)) && 
@annotation(configureTimeoutAnnotation) && args(key, ..)")
public void setContext(ConfigureTimeout configureTimeoutAnnotation, String key) {
    redisTemplate.expire(key, configureTimeoutAnnotation.timeout(), TimeUnit.SECONDS);
}