使用 spring 在 Redis 存储库中查找

Question

我想使用 Redis spring 保存和获取数据。我只有配置文件 SOME 有 redis。我保存数据好。但是当我尝试通过方法 findByIdAndName 获取数据时，我总是有空的 Optional.

我的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;
}

我的存储库：

public interface SomeInfoRepository extends CrudRepository<SomeInfo, String> {

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

我有redis配置：

@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;
    }

}

和application.yml

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

我知道数据保存正常：

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"

和

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

那么，为什么我的方法 findByIdAndName 不起作用？如果我使用方法 findById(id)，它工作正常并且 return 数据。

Answer 1

您在 id 字段中缺少 @Indexed 注释。
另请参阅此问题以供参考：

使用 spring 在 Redis 存储库中查找

FindBy in Redis Repository with spring

java

spring

redis

spring-data-redis