how to configure different ttl for each redis cache when using @cacheable in springboot2.0

Question

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

@Bean
public RedisCacheManager redisCacheManager(RedisConne         


        

Answer 1

Here is how you can define multiple Redis based caches with different TTL and maxIdleTime using Redisson Java client:

    @Bean(destroyMethod="shutdown")
    RedissonClient redisson() throws IOException {
        Config config = new Config();
        config.useClusterServers()
              .addNodeAddress("redis://127.0.0.1:7004", "redis://127.0.0.1:7001");
        return Redisson.create(config);
    }

    @Bean
    CacheManager cacheManager(RedissonClient redissonClient) {
        Map config = new HashMap();

        // create "myCache1" cache with ttl = 20 minutes and maxIdleTime = 12 minutes
        config.put("myCache", new CacheConfig(24*60*1000, 12*60*1000));

        // create "myCache2" cache with ttl = 35 minutes and maxIdleTime = 24 minutes
        config.put("myCache2", new CacheConfig(35*60*1000, 24*60*1000));
        return new RedissonSpringCacheManager(redissonClient, config);
    }