1 修改 redis.conf配置文件：

K Keyspace events, published with keyspace@ prefix事件E Keyevent events, published with keyevent@ prefixg Generic commands (non-type specific) like DEL, EXPIRE, RENAME, …$ String commandsl List commandss Set commandsh Hash commandsz Sorted set commandsx Expired events (events generated every time a key expires)e Evicted events (events generated when a key is evicted for maxmemory)A Alias for g$lshzxe, so that the “AKE” string means all the events.redis.conf 的默認(rèn)的配置是：notify-keyspace-events ''我們需要改為：notify-keyspace-events Ex即對(duì)應(yīng)上面的鍵的過(guò)期事件。修改玩這個(gè)重啟一下redis

2 客戶端來(lái)監(jiān)聽(tīng)redis的過(guò)期事件：

@Configurationpublic class RedisListenerConfig { @Bean RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory) { RedisMessageListenerContainer container = new RedisMessageListenerContainer(); container.setConnectionFactory(connectionFactory); return container; }}

3.書(shū)寫一個(gè)監(jiān)聽(tīng)器

@Slf4j@Componentpublic class RedisKeyExpirationListener extends KeyExpirationEventMessageListener { public RedisKeyExpirationListener(RedisMessageListenerContainer listenerContainer) { super(listenerContainer); } @Override public void onMessage(Message message, byte[] pattern) { String expiredKey = message.toString(); log.info('expiredKey========='+expiredKey); }

4.查詢方法中隨便加了兩個(gè)表中的不同id，一個(gè)30s,一個(gè)27s。

redisUtil.set('UserId'+user.get(0).getId(),user.get(0).getId(),30);redisUtil.set('UserInfoId'+userInfo.get(0).getId(),userInfo.get(0).getId(),27);

控制臺(tái)輸出：

需要注意的是：

過(guò)期監(jiān)聽(tīng)消息中返回的是，過(guò)期的鍵的key值，是沒(méi)有返回value的

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