Spring Data Redis 过期密钥 [英] Spring Data Redis Expire Key

问题描述

我有一个 One Spring Hibernate 应用程序.在我的应用程序中，最近我实现了 Spring data Redis.

I have a One Spring Hibernate Application. In my application, Recently i am implemented Spring data Redis.

spring-servlet.xml
<!-- redis connection factory -->
<bean id="jedisConnFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" p:use-pool="true"/>

<!-- redis template definition -->
<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate" 
    p:connection-factory-ref="jedisConnFactory"/>

这个 redisTemplate 在我的 ServiceImpl 类中使用.

And this redisTemplate use in my ServiceImpl class.

RedisServiceImpl

@Autowired
private RedisTemplate<String, T> redisTemplate;

public RedisTemplate<String, T> getRedisTemplate() {
    return redisTemplate;
}

public void setRedisTemplate(RedisTemplate<String, T> redisTemplate) {
    this.redisTemplate = redisTemplate;
}

现在我像这样在redisServer中添加数据

Now I added data in redisServer like this

public void putData(String uniqueKey, String key, Object results) {

    redisTemplate.opsForHash().put(uniqueKey, key, results);
}

现在我想删除过期键.

我在谷歌搜索，但在谷歌上都是这样说的

I search in Google, But in google all are saying like this

redisTemplate.expire(key, timeout, TimeUnit);

在这个expire方法中，我们需要提供uniqueKey而不是key.但我需要过期 key 而不是 uniqueKey.

In this expire method, We need to provide uniqueKey instead of key. But I need to Expire key instead of uniqueKey.

所以请帮我看看过期的Key怎么办?

So Please help me what can i do for expire Key?

推荐答案

我正在使用 Spring Data Redis.

I am using Spring Data Redis.

我正在使用 @Redishash(timeToLive=300) 注释在 300 秒后使我的实体过期.

I am using @Redishash(timeToLive=300) annotation to expire my Entities after 300 seconds.

这是我的pom.xml

...
...
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.7.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>
...
...
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
    <dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
    </dependency>
...
...

我的RedisConfig.class

@Configuration
@Log4j2
@EnableRedisRepositories(basePackageClasses = ConsentOTP.class)
public class RedisConfig {

    @Value("${spring.redis.host}")
    private String host;

    @Value("${spring.redis.port}")
    private Integer port;

    @Value("${spring.redis.password}")
    private String password;

    @Bean
    JedisConnectionFactory jedisConnectionFactory() {
        log.info("=================================================================");
        log.info("redis config : {} : {} ", host, port);
        log.info("=================================================================");

        RedisStandaloneConfiguration config = new RedisStandaloneConfiguration(host, port);
        config.setPassword(RedisPassword.of(password));
        return new JedisConnectionFactory(config);
    }

}

还有我的实体类ConsentOtp.class

@RedisHash(value = "ConsentOTP", timeToLive = 300)
@Data
@NoArgsConstructor
public class ConsentOTP implements Serializable {

    private static final long serialVersionUID = 1708925807375596799L;

    private String id;
    private LocalDateTime timestamp;
    private String otp;

    public ConsentOTP(String personId, LocalDateTime timestamp, String otp) {
        this.id = personId;
        this.timestamp = timestamp;
        this.otp = otp;
    }
}

这是我的Redis存储库

Here is my Redis repository

public interface ConsentOtpRepository extends CrudRepository<ConsentOTP, String> {
    
}

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