Redis key過期監聽事件

一、修改redis配置

打開 notify-keyspace-events Ex 配置註釋

 

二、項目中是否已添加redis依賴

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

三、創建redis監聽配置類

@Configuration
public class RedisListenerConfig {
    @Bean
    RedisMessageListenerContainer container(@Qualifier("redisConnectionFactory") RedisConnectionFactory connectionFactory) {
        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(connectionFactory);
        //container.addMessageListener(new RedisExpiredListener(), new PatternTopic("__keyevent@0__:expired"));
        return container;
    }
}

四、添加對應監聽類

@Component
public class RedisKeyExpirationListener extends KeyExpirationEventMessageListener {

    public RedisKeyExpirationListener(RedisMessageListenerContainer listenerContainer) {
        super(listenerContainer);
    }

    @Override
    public void onMessage(Message message, byte[] pattern) {
        String expiredKey = message.toString();
        // doSomething
    }

}