技術標籤：# Spring-Boot# Redis

一、Spring整合Reids鍵值亂碼

Spring整合Reids設定快取資料時，發現鍵值亂碼
設定的key前面有亂碼\xac\xed\x00\x05t\x00\tb

Redis Desktop Manage檢視發現亂碼

二、解決方法

手動定義序列化的方法，spring-data-redis中還提供了一個序列化的類專門針對string型別的序列化org.springframework.data.redis.serializer.StringRedisSerializer這個類，

我們在帶有@Configuration註解的類中覆蓋自動配置的RedisTemplate<Object,Object>，

如下：新增帶有註解@Configuration的RedisConfig配置檔案

package com.common.redis;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
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;

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

    @Bean
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();
        // 設定redis連線
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        // 使用Jackson2JsonRedisSerialize 替換預設序列化
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

        // 設定value的序列化規則和 key的序列化規則
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        // 將redisTemplate的序列化方式更改為StringRedisSerializer
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

}
 

如果是Spring mvc專案則可以在xml中指定：

	<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate"
		p:connection-factory-ref="jedisConnectionFactory">
		<property name="keySerializer">
			<bean class="org.springframework.data.redis.serializer.StringRedisSerializer" />
		</property>
		<property name="valueSerializer">
			<bean class="org.springframework.data.redis.serializer.StringRedisSerializer" />
		</property>
		<property name="hashKeySerializer">
			<bean class="org.springframework.data.redis.serializer.StringRedisSerializer" />
		</property>
		<property name="hashValueSerializer">
			<bean class="org.springframework.data.redis.serializer.StringRedisSerializer" />
		</property>
	</bean>
 

三、問題分析

有用請點贊，養成良好習慣！

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