CODEWITHSUNDEEP
redisspring-data
BilboDai
BilboDai

Reputation: 181

Using RedisTemplate set a value but get Nil from Terminal Redis-CLI

1.Set key name with alex using Spring data redis Library.

 @Test
public void testOne() throws Exception {
    redisTemplate.opsForValue().set("name","alex");
}

2.Try get name from Terminal with redis-cli but get Nil

127.0.0.1:6379> get name
(nil)

3.However alex can be retrieve like this

Object hello = redisTemplate.opsForValue().get("name");
System.out.println(hello);
-----
alex

Can anyone explain this, thanks!

Upvotes: 3

Views: 4034

Answers (3)

vvauban
vvauban

Reputation: 475

Set some serializer options on your RedisTemplate like below 👇

private RedisTemplate<String, ?> createRedisTemplateForEntity() {

    RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();
    redisTemplate.setConnectionFactory(getRedisConnectionFactory());

    redisTemplate.setHashValueSerializer(new StringRedisSerializer());
    redisTemplate.setKeySerializer(new StringRedisSerializer());
    redisTemplate.setValueSerializer(new StringRedisSerializer());
    redisTemplate.setHashKeySerializer(new StringRedisSerializer());

    redisTemplate.afterPropertiesSet();
    return redisTemplate;
}

where getRedisConnectionFactory() returns your Redis connection (ie: JedisConnectionFactory).

😄

Upvotes: 0

Hong Duan
Hong Duan

Reputation: 4294

Try surround the key with ":

127.0.0.1:6379> get "name"

Upvotes: 0

Christoph Strobl
Christoph Strobl

Reputation: 6736

RedisTemplate converts keys and values depending on the configured RedisSerializers (see 6.7 Serializers). The default is JdkSerializationRedisSerializer.

Given the String name the actual key in redis looks like:

GenericJackson2JsonRedisSerializer  : "name"
JacksonJsonRedisSerializer:         : "name"
Jackson2JsonRedisSerializer:        : "name"
JdkSerializationRedisSerializer     : \xac\xed\x00\x05t\x00\x04name
OxmSerializer with XStreamMarshaller: <string>name</string>
StringRedisSerializer               : name

So in case you intend to just work with Strings the convenience classes like StringRedisTemplate might be a good choice.

Upvotes: 2

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