Spring Cache更改json作为value的类型

系统管理员 2021-08-30 02:19 332阅读 0赞

1.Spring Cache默认是用jdk序列化机制作为value的存储类型，一般不符合，我们可以更改为json作为存储类型，可以在任何语言上面使用的类型

2.新建一个配置文件即可

![在这里插入图片描述][20200527214715343.png]

package com.atguigu.gulimall.product.config;
    
    import com.alibaba.fastjson.support.spring.GenericFastJsonRedisSerializer;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.autoconfigure.cache.CacheProperties;
    import org.springframework.boot.context.properties.EnableConfigurationProperties;
    import org.springframework.cache.annotation.EnableCaching;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.data.redis.cache.RedisCacheConfiguration;
    import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
    import org.springframework.data.redis.serializer.RedisSerializationContext;
    import org.springframework.data.redis.serializer.StringRedisSerializer;
    
    @EnableConfigurationProperties(CacheProperties.class)  //导入配置属性
    @EnableCaching   //开启SpringCache作为缓存功能
    @Configuration
    public class MyCacheConfig { 
    //    @Autowired
    //    CacheProperties cacheProperties;
    
        /**
         * 配置文件中的东西没用上
         * @return
         */
        @Bean
        RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties){ 
    
            RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
            config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
            //使用json格式的来做存储数据类型，方便给各种语言方便使用
            config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
            CacheProperties.Redis redisProperties = cacheProperties.getRedis();
            if (redisProperties.getTimeToLive() != null) { 
                config = config.entryTtl(redisProperties.getTimeToLive());
            }
    
            if (redisProperties.getKeyPrefix() != null) { 
                config = config.prefixKeysWith(redisProperties.getKeyPrefix());
            }
    
            if (!redisProperties.isCacheNullValues()) { 
                config = config.disableCachingNullValues();
            }
    
            if (!redisProperties.isUseKeyPrefix()) { 
                config = config.disableKeyPrefix();
            }
           //将配置文件中所有配置也拿来
            return config;
        };
    }

[20200527214715343.png]: /images/20210827/2b888c944fcc4003b8a81133c2b71709.png