I'm getting a corrupted value from Spring Redis MessageReceiver

Question

I'm playing with Spring/Redis/Jedis for a simple message queue system. I've brought up a simple test case using just Strings, but for some reason the strings are coming back corrupted. I was originally trying with POJOs, but that also had corruption, so I figured just simple strings would work, but so far no luck.

When I use redis-cli and subscribe to the channel the raw data it shows me is

1) "message"
2) "test"
3) "\xac\xed\x00\x05t\x00\x03wee"

Here is my sample code

@Service
public class MessageService {
    @Autowired private RedisTemplate<String, String> testTemplate;

    @Bean
    RedisMessageListenerContainer container(JedisConnectionFactory jedisConnectionFactory,
                                            MessageListenerAdapter listenerAdapter) {

        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(jedisConnectionFactory);
        container.addMessageListener(listenerAdapter, new PatternTopic("test"));

        return container;
    }

    @Bean
    MessageListenerAdapter listenerAdapter() {
        return new MessageListenerAdapter(this, "receiveMessage");
    }

    public void sendMessage(){
        TestObject message = new TestObject();
        message.test = 5;
        testTemplate.convertAndSend("test", "wee");
    }

    public void receiveMessage(String testObject) {
        System.out.println("I got a message " + testObject);
    }
}

The output from receieveMessage is I got a message ?? t wee, well there are two characters that can't be displayed in stackoverflow where the spaces are before and after the 't'.

Any ideas as to what is causing this corruption?

Spring Data Redis uses `JdkSerializationRedisSerializer` for serializing values. Use `StringRedisSerializer` or `RedisStringTemplate` if you want to use strings. See http://docs.spring.io/spring-data/data-redis/docs/current/api/org/springframework/data/redis/core/RedisTemplate.html and http://docs.spring.io/spring-data/redis/docs/1.6.0.RELEASE/reference/html/#redis:serializer — mp911de, Oct 24 '15 at 13:08
I'm already using the RedisTemplate, and even if I put in `testTemplate.setKeySerializer(new StringRedisSerializer()); testTemplate.setDefaultSerializer(new StringRedisSerializer());` I still get the same corruption. And from looking at the RedisMessageListenerContainer it appears to use the default StringRedisSerializer. — Zipper, Oct 25 '15 at 01:16
There is also a `setValueSerializer()`, but `setDefaultSerializer()` should be ok. — mp911de, Oct 25 '15 at 09:20

score 0 · Answer 1 · answered Jan 05 '20 at 13:29

    @Bean
    public RedisTemplate<String,String> redisTemplate() {
        final RedisTemplate<String,String> redisTemplate = new RedisTemplate<String,String>();
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new GenericToStringSerializer<>(Object.class));
        redisTemplate.setHashValueSerializer(new JdkSerializationRedisSerializer());
        redisTemplate.setValueSerializer(new StringRedisSerializer());
        redisTemplate.setConnectionFactory(jedisConnectionFactory());
        return redisTemplate;
    }

Your RedisTemplate value serializer should be StringRedisSerializer. Use this conf for RedisTemplate.

I'm getting a corrupted value from Spring Redis MessageReceiver

1 Answers1