FindBy in Redis Repository with spring

Question

I want save and get data from redis use spring. I have redis only for profile SOME. I save data ok. But when I try to get data by method findByIdAndName, I always have empty Optional.

My pojo:

@RedisHash("Some")
@Data
@AllArgsConstructor
public class SomeInfo implements Serializable {

    @Id
    private String id;

    @Indexed
    private String name;

    @TimeToLive(unit = TimeUnit.DAYS)
    private Long expiration;
}

My repository:

public interface SomeInfoRepository extends CrudRepository<SomeInfo, String> {

    Optional<SomeInfo> findByIdAndName(String id, String name);
}

And I have redis config:

@Profile(Profiles.SOME)
@Configuration(proxyBeanMethods = false)
@EnableConfigurationProperties(RedisProperties.class)
@EnableRedisRepositories(basePackageClasses = { SomeInfoRepository.class })
public class RedisConfig {

    @Bean
    public RedisTemplate<Object, Object> redisTemplate(ObjectMapper objectMapper, RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory);
        template.setDefaultSerializer(new GenericJackson2JsonRedisSerializer(objectMapper));
        return template;
    }

    @Bean(name = "someTopic")
    public ChannelTopic someTopic(@Value("${app.topics.some}") String someChannel) {
        return new ChannelTopic(someChannel);
    }

    @Bean
    public RedisMessageListenerContainer roundRedisContainer(RedisConnectionFactory connectionFactory,
                                                             SomeMessageListener someMessageListener,
                                                             @Qualifier("someTopic") ChannelTopic someTopic) {
        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(connectionFactory);
        container.addMessageListener(someMessageListener, someTopic);
        return container;
    }

}

And application.yml

spring:
  redis:
    host: localhost
    port: 6379
    ssl: false
    password: some
  data.redis.repositories.enabled: false

I know that data save ok:

keys *
1) "Some:36:idx"
2) "Some"
3) "Some:name:af0b83a2b15f018bdd404aef33bfb11f"
4) "Some:name:f5f8c3a9119bb822b0c2fde3265d37fa"
5) "Some:41:idx"
6) "Some:41:phantom"
7) "Some:36:phantom"
8) "Some:41"
9) "Some:36"

And

hgetall Some:41
1) "_class"
2) "ru.some.SomeInfo"
3) "id"
4) "41"
5) "name"
6) "af0b83a2b15f018bdd404aef33bfb11f"
7) "expiration"
8) "30"

So, why is my method findByIdAndName not work? If I use method findById(id), it work correct and return data.

Is it returning an empty response or you're getting some error? You can use redis monitor command to debug and check what key is the application trying to perform a get operation on. Run redis monitor from redis-cli and check if any GET operation was performed and on which key was it performed when you executed `findByIdAndName`. Don't run redis monitor for a long time though on a production system. — nimbudew, Jun 16 '20 at 10:58
@nimbudew No? I haven't any errors, I'm getting empty response. I turn on monitoring and get this request ` "SINTER" "Some:id:41" "Some:name:af0b83a2b15f018bdd404aef33bfb11f"` — AnnKont, Jun 16 '20 at 11:14
I do this comand: `> SINTER Some:id:41` and get: `(empty list or set)` do this `> SINTER Some:name:af0b83a2b15f018bdd404aef33bfb11f` and get `1) "41"` — AnnKont, Jun 16 '20 at 11:17
I think you should also use @Indexed on id field. See this: https://stackoverflow.com/questions/53121627/unable-to-get-result-from-the-redis-using-crud-repository-in-spring-boot — nimbudew, Jun 16 '20 at 11:23

nimbudew · Accepted Answer · 2020-06-17T11:28:04.253

8

You're missing the @Indexed annotation on the id field.
Also see this question for reference: Unable to get result from the Redis using Crud Repository in Spring Boot?

edited Jun 17 '20 at 11:28

answered Jun 16 '20 at 16:11

nimbudew

958
11
28

FindBy in Redis Repository with spring

1 Answers1