SpringBoot——》更改Redis序列化方式

客官°小女子只卖身不卖艺 2024-02-24 02:17 67阅读 0赞

> 推荐链接：  
> [总结——》【Java】][Java]  
> [总结——》【Mysql】][Mysql]  
> [总结——》【Redis】][Redis]  
> [总结——》【Kafka】][Kafka]  
> [总结——》【Spring】][Spring]  
> [总结——》【SpringBoot】][SpringBoot]  
> [总结——》【MyBatis、MyBatis-Plus】][MyBatis_MyBatis-Plus]  
> [总结——》【Linux】][Linux]  
> [总结——》【MongoDB】][MongoDB]  
> [总结——》【Elasticsearch】][Elasticsearch]

#### SpringBoot——》更改Redis序列化方式 ####

*  一、序列化方式
 *  二、使用默认序列化方式
 *   *  1、代码示例
     *  2、访问接口
     *  3、结果示例
 *  三、更改序列化方式
 *   *  1、代码示例
     *  2、访问接口
     *  3、结果示例
 *  四、自定义序列化方式

## 一、序列化方式 ##

1.  GenericJackson2JsonRedisSerializer
2.  GenericToStringSerializer
3.  Jackson2JsonRedisSerializer
4.  JdkSerializationRedisSerializer（默认使用）
5.  StringRedisSerializer
6.  自定义 Serializer

## 二、使用默认序列化方式 ##

### 1、代码示例 ###

package com.xiaoxian.demo.controller;
    
    import com.alibaba.fastjson.JSON;
    import com.xiaoxian.demo.domain.User;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.data.redis.core.RedisTemplate;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    @RestController
    public class RedisTestController {
        
    
        @Autowired
        RedisTemplate redisTemplate;
    
    
        @GetMapping("/redis/test1")
        public void test1() {
        
            List<User> list = new ArrayList<>();
            User user = new User();
            user.setId(1);
            user.setName("测试");
            list.add(user);
            redisTemplate.opsForValue().set("strTest1", JSON.toJSONString(list));
    
            Map<String, Object> map = new HashMap<>(2);
            map.put("id", 1);
            map.put("name", "测试");
            redisTemplate.opsForHash().putAll("mapTest1", map);
        }
    }

### 2、访问接口 ###

[http://127.0.0.1:8080/redis/test][http_127.0.0.1_8080_redis_test]

### 3、结果示例 ###

![image.png][]  
![image.png][image.png 1]

## 三、更改序列化方式 ##

### 1、代码示例 ###

package com.xiaoxian.demo.config;
    
    import com.fasterxml.jackson.annotation.JsonAutoDetect;
    import com.fasterxml.jackson.annotation.JsonInclude;
    import com.fasterxml.jackson.annotation.PropertyAccessor;
    import com.fasterxml.jackson.databind.ObjectMapper;
    import com.fasterxml.jackson.databind.SerializationFeature;
    import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
    import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
    import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
    import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
    import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
    import org.springframework.context.annotation.Bean;
    import org.springframework.data.redis.connection.RedisConnectionFactory;
    import org.springframework.data.redis.core.RedisTemplate;
    import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
    import org.springframework.data.redis.serializer.StringRedisSerializer;
    import org.springframework.stereotype.Component;
    
    import java.time.LocalDate;
    import java.time.LocalDateTime;
    import java.time.format.DateTimeFormatter;
    
    @Component
    public class RedisConfig {
        
        @Bean
        public RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        
            RedisTemplate redisTemplate = new RedisTemplate();
            redisTemplate.setConnectionFactory(redisConnectionFactory);
    
            // key的序列化方式
            StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
    
            // value的序列化方式
            Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
    
            // 创建ObjectMapper对象，基于此对象进行序列化和反序列化
            ObjectMapper objectMapper = new ObjectMapper();
            objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
            objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
    
            //LocalDatetime序列化
            JavaTimeModule timeModule = new JavaTimeModule();
            timeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
            timeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
            timeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
            timeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
    
            objectMapper.registerModule(timeModule);
    
            objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
            //对象属性值为null时,不进行序列化存储
            objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
            jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
    
            // 设置序列化方式
            redisTemplate.setKeySerializer(stringRedisSerializer);
            redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
    
            redisTemplate.setHashKeySerializer(stringRedisSerializer);
            redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
    
            // 更新RedisTemplate对象的默认配置
            redisTemplate.afterPropertiesSet();
            return redisTemplate;
        }
    }

### 2、访问接口 ###

[http://127.0.0.1:8080/redis/test][http_127.0.0.1_8080_redis_test]

### 3、结果示例 ###

![image.png][image.png 2]  
![image.png][image.png 3]

## 四、自定义序列化方式 ##

[Java]: https://blog.csdn.net/weixin_43453386/article/details/84788317
[Mysql]: https://blog.csdn.net/weixin_43453386/article/details/88667709
[Redis]: https://blog.csdn.net/weixin_43453386/article/details/127966762
[Kafka]: https://blog.csdn.net/weixin_43453386/article/details/128189472
[Spring]: https://blog.csdn.net/weixin_43453386/article/details/124900806
[SpringBoot]: https://blog.csdn.net/weixin_43453386/article/details/84788714
[MyBatis_MyBatis-Plus]: https://blog.csdn.net/weixin_43453386/article/details/84788053
[Linux]: https://blog.csdn.net/weixin_43453386/article/details/89241912
[MongoDB]: https://blog.csdn.net/weixin_43453386/article/details/84788450
[Elasticsearch]: https://blog.csdn.net/weixin_43453386/article/details/108583782
[http_127.0.0.1_8080_redis_test]: http://127.0.0.1:8080/redis/test
[image.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/24/8464637e1e9f42c3b738e2c45b0e4a97.png
[image.png 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/24/a412031258d744deb3252c6711fd957a.png
[image.png 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/24/54af312d594a4dd29691f65c4b619710.png
[image.png 3]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/24/a9e82326dfc94c498314fd6f91036be4.png