一、背景

最近使用spring-data-redis 和jedis 操作redis时发现存储在redis中的key不是程序中设置的string值，前面还多出了许多类似\xac\xed\x00\x05t\x00这种字符串

二、原因

spring-data-redis的RedisTemplate<K, V>模板类在操作redis时默认使用JdkSerializationRedisSerializer来进行序列化

private RedisSerializer<?> defaultSerializer = new JdkSerializationRedisSerializer();

private RedisSerializer keySerializer = null;
private RedisSerializer valueSerializer = null;
private RedisSerializer hashKeySerializer = null;
private RedisSerializer hashValueSerializer = null;

三、解决方法

将keySerializer，hashKeySerializer替换为StringRedisSerializer

可以采用注入的方式：

<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">
    <property name="connectionFactory" ref="jedisConnectionFactory"/>
    <property name="keySerializer">
        <bean class="org.springframework.data.redis.serializer.StringRedisSerializer"/>
    </property>
    <property name="hashKeySerializer">
        <bean class="org.springframework.data.redis.serializer.StringRedisSerializer"/>
    </property>
</bean>