1.修改redis配置
過期事件通過Redis的訂閱與發布功能（pub/sub）來進行分發。

而對超時的監聽呢，并不需要自己發布，只有修改配置文件redis.conf中的：notify-keyspace-events Ex，默認為notify-keyspace-events “”
2.創建監聽器

public class KeyExpiredListener extends JedisPubSub {/*** 訂閱事件消息*/@Overridepublic void onPSubscribe(String pattern, int subscribedChannels) {System.out.println("onPSubscribe "+ pattern + " " + subscribedChannels);}/*** key失效消息* 如果起始幀已發送，發送續傳幀*/@Overridepublic void onPMessage(String pattern, String channel, String message) {// System.out.println("onPMessage pattern " // + pattern + " " + channel + " " + message);} }

3.初始化創建消息訂閱

public class Subscriber {public static void main(String[] args) {Jedis jedis = RedisUtil.getJedis();jedis.psubscribe(new KeyExpiredListener(), "__key*__:*");jedis.close();} }

4.設置key測試

public class TestJedis {public static void main(String[] args) {Jedis jedis = RedisUtil.getJedis();jedis.set("upgrate:expire", "新浪微博：小葉子一點也不逗");jedis.expire("upgrate:expire", 3);jedis.expire("upgrate:expire", 10);jedis.close();} }

總結

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