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

You can configure different expire time for each cache using only one CacheManager by creating different configurations for each cache and put them in a map with which you create the CacheManager.

For example:

@Bean
RedisCacheWriter redisCacheWriter() {
    return RedisCacheWriter.lockingRedisCacheWriter(jedisConnectionFactory());
}

@Bean
RedisCacheConfiguration defaultRedisCacheConfiguration() {
    return RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofSeconds(defaultCacheExpiration));
}

@Bean
CacheManager cacheManager() {
    Map cacheNamesConfigurationMap = new HashMap<>();
    cacheNamesConfigurationMap.put("cacheName1", RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofSeconds(ttl1)));
    cacheNamesConfigurationMap.put("cacheName2", RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofSeconds(ttl2)));
    cacheNamesConfigurationMap.put("cacheName3", RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofSeconds(ttl3)));

    return new RedisCacheManager(redisCacheWriter(), defaultRedisCacheConfiguration(), cacheNamesConfigurationMap);
}