java - Redis 缓存 Map

Question

我在使用 redis 缓存时遇到了问题:带有整数键的映射被序列化为字符串，如下所示:

 "1":"AAAA","2":"BBB","3":"CCC"

我的配置是这样的:

@Bean
    public RedisCacheConfiguration myCacheConfiguration()
    {
        return RedisCacheConfiguration.defaultCacheConfig()
                .entryTtl(Duration.ZERO)
                .disableCachingNullValues()
                .serializeValuesWith(RedisSerializationContext.SerializationPair
                        .fromSerializer(new Jackson2JsonRedisSerializer<>(Map.class)));
    }

  @Bean
    public CacheManager myCacheManager(RedisConnectionFactory redisConnectionFactory)
    {
        return RedisCacheManager.builder(redisConnectionFactory)
                .cacheDefaults(myCacheConfiguration())
                .transactionAware()
                .build();
    }

我试图将 GenericJackson2JsonRedisSerializer 传递给 serializeValuesWith()，但它不起作用。有没有办法将 map 的整数键序列化\反序列化为数字？

Answer 1

Jackson2JsonRedisSerializer 和 GenericJackson2JsonRedisSerializer 都允许使用自定义 ObjectMapper。

不熟悉 Redis，但似乎是根据 doc 自定义序列化的设计方式:

Setting a custom-configured ObjectMapper is one way to take further control of the JSON serialization process. For example, an extended SerializerFactory can be configured that provides custom serializers for specific types. The other option for refining the serialization process is to use Jackson's provided annotations on the types to be serialized, in which case a custom-configured ObjectMapper is unnecessary.