Spring Redis 序列化方式修改——RedisTemplate存取数据异常，在数据前有一串字符

今天在工作中，用Spring data 的RedisTemplate查询一个hash，输入正确的key，却不能查出来数据，于是尝试往Redis里存一个简单的KV键值对("cyf","father2")，居然发现了这种情况：

于是询问大佬以后，发现是spring redis自带的序列化方式的问题，reidstemplate使用的默认的序列化方式有问题，需要调整序列化方式才能在redis中正常显示。

经过百度发现：

package com.wenbronk.data.redis;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
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;

/**
 * redis的启动类
 * Created by wenbronk on 2017/6/12.
 */
@SpringBootApplication
public class RedisApplication {
    public static void main(String[] args) {
        SpringApplication.run(RedisApplication.class, args);
    }

    /**
     * redisTemplate 序列化使用的jdkSerializeable, 存储二进制字节码, 所以自定义序列化类
     * @param redisConnectionFactory
     * @return
     */
    @Bean
    public RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);

        // 使用Jackson2JsonRedisSerialize 替换默认序列化
        Jackson2JsonRedisSerializer 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);

        // 设置value的序列化规则和 key的序列化规则
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
}

经过总结，应该是定义出RedisTemplate对象以后 通过

redisTemplate.setKeySerializer(new StringRedisSerializer());

这样的方式来修改序列化方式，于是我在Config包下加了一个配置文件：RedisSerializeConfig.class

import org.springframework.beans.factory.annotation.Autowired;
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 javax.annotation.PostConstruct;

@Component
public class RedisSerializeConfig {

    @Autowired
    protected RedisTemplate redisTemplate;

    @PostConstruct
    private void init() {
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(new Jackson2JsonRedisSerializer