redis key/value 出現\xAC\xED\x00\x05t\x00\x05

1.問題現象：

最近使用spring-data-redis 和jedis 操作redis時發現存儲在redis中的key不是程序中設置的string值，前面還多出了許多類似\xac\xed\x00\x05t\x00這種字符串

2.原因：

spring-data-redis的RedisTemplate<K, V>模板類在操作redis時默認使用JdkSerializationRedisSerializer來進行序列化。

public void afterPropertiesSet() {

        super.afterPropertiesSet();

        boolean defaultUsed = false;

        if (defaultSerializer == null) {

            defaultSerializer = new JdkSerializationRedisSerializer(
                    classLoader != null ? classLoader : this.getClass().getClassLoader());
        }

        if (enableDefaultSerializer) {

            if (keySerializer == null) {
                keySerializer = defaultSerializer;
                defaultUsed = true;
            }
            if (valueSerializer == null) {
                valueSerializer = defaultSerializer;
                defaultUsed = true;
            }
            if (hashKeySerializer == null) {
                hashKeySerializer = defaultSerializer;
                defaultUsed = true;
            }
            if (hashValueSerializer == null) {
                hashValueSerializer = defaultSerializer;
                defaultUsed = true;
            }
        }

        if (enableDefaultSerializer && defaultUsed) {
            Assert.notNull(defaultSerializer, "default serializer null and not all serializers initialized");
        }

        if (scriptExecutor == null) {
            this.scriptExecutor = new DefaultScriptExecutor<K>(this);
        }

        initialized = true;
    }

3.解決方案

public class RedisDao {

    private static final Logger log = LoggerFactory.getLogger(RedisDao.class);

    private RedisTemplate redisTemplate;

    private RedisTemplate<String, Object> redisTemplateMap;

    @Autowired(required = false)
    public void setRedisTemplate(RedisTemplate redisTemplate) {
        RedisSerializer stringSerializer = new StringRedisSerializer();
        redisTemplate.setKeySerializer(stringSerializer);
        redisTemplate.setValueSerializer(stringSerializer);
        redisTemplate.setHashKeySerializer(stringSerializer);
        redisTemplate.setHashValueSerializer(stringSerializer);
        this.redisTemplate = redisTemplate;
    }

將redisTemplate默認改為stringRedis序列化方式。