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问题描述

我在带有redis的springboot2.0中使用@cacheable。我已将RedisCacheManager配置如下:

I am using @cacheable in springboot2.0 with redis. I have configured RedisCacheManager as follow:

@Bean
public RedisCacheManager redisCacheManager(RedisConnectionFactory connectionFactory) {

    RedisCacheWriter redisCacheWriter = RedisCacheWriter.lockingRedisCacheWriter(connectionFactory);
    SerializationPair<Object> valueSerializationPair = RedisSerializationContext.SerializationPair
            .fromSerializer(new GenericJackson2JsonRedisSerializer());
    RedisCacheConfiguration cacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();
    cacheConfiguration = cacheConfiguration.serializeValuesWith(valueSerializationPair);
    cacheConfiguration = cacheConfiguration.prefixKeysWith("myPrefix");
    cacheConfiguration = cacheConfiguration.entryTtl(Duration.ofSeconds(30));

    RedisCacheManager redisCacheManager = new RedisCacheManager(redisCacheWriter, cacheConfiguration);
    return redisCacheManager;
}

但这会使所有密钥的ttl变为30秒,如何为每个密钥配置不同的ttl

but this make all key's ttl 30 second, how to configure different ttl for each redis cache with different cachename?

推荐答案

如果使用@cacheable时需要为缓存配置不同的过期时间,
可以使用不同的ttl配置不同的CacheManager,并在服务中使用缓存时指定cacheManager。

If you need configure different expire time for cache when using @cacheable ,you can configure different CacheManager with different ttl,and specify cacheManager when using cache in your service.

 @Cacheable(cacheManager = "expireOneHour", value = "onehour", key = "'_onehour_'+#key", sync = true)

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09-26 14:05