RedisTemplate配置序列化与反序列化

最新推荐文章于 2025-05-15 17:55:15 发布

原创最新推荐文章于 2025-05-15 17:55:15 发布 · 968 阅读

9 ·

CC 4.0 BY-SA版权

文章标签：

#java #spring #mybatis

本文介绍了如何在SpringBoot项目中配置RedisTemplate，使用Jackson2JsonRedisSerializer进行对象到JSON的序列化和反序列化，以及处理默认配置以兼容未知属性。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

package com.yumc.store.boh.device.maintenance.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
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.web.client.RestTemplate;


/**
 * @author zsy
 */
@Configuration
public class RedisConfig {

    @Bean
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory);
        template.setKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(new Jackson2JsonRedisSerializer<>(Object.class));
        template.setHashKeySerializer(jackson2JsonRedisSerializer());
        template.setHashValueSerializer(jackson2JsonRedisSerializer());
        template.afterPropertiesSet();
        return template;
    }


    private Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer() {
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer =
        new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        // 自动检测所有类的全部属性
        objectMapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY) ;
        // 此项必须配置，否则会报java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to XXX
        objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance , ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
        // 此设置默认为true，就是在反序列化遇到未知属性时抛异常，这里设置为false，目的为忽略部分序列化对象存入缓存时误存的其他方法的返回值
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

        return jackson2JsonRedisSerializer;
    }



    @Bean
    public RestTemplate restTemplate(){
        return  new RestTemplate();
    }
}