redis过期key删除

Posted 2021-02-12 一见钟情算不算爱

LZ一开始配置到启动类里面，结果出现了主线程阻塞的情况。

如下是流程：

首先修改配置文件redis.conf中的：notify-keyspace-events Ex，默认为notify-keyspace-events "" （注释掉默认的，注意notify-keyspace-events Ex之前不能有空格）

启动初始化类里面的contextInitialized方法中加入以下代码：（启动一个线程执行订阅功能）

Thread thread = new Thread(传入需要参数--既然是redis监控必然需要jedis参数);
thread.start();

之后再编写业务代码

resource.psubscribe(pubSub, "[email protected]__:expired");

这里是订阅监听，[email protected]__:expired是监听的频道

redis监听类

public class Listener extends JedisPubSub{
    private static Logger logger = Logger.getLogger(Listener.class);

    private XXX xxx;
    private YYY yyy;

    public Listener(XXX xxx, YYY yyy) {
        this.xxx= xxx;
        this.yyy= yyy;
    }

    @Override
    public void onPMessage(String pattern, String channel, String message) {
        logger.info("onPMessage: channel[" + channel + "], message[" + message + "]");
        {业务内容}
    }

    @Override
    public void onMessage(String channel, String message) {
        logger.info("onMessage: channel[" + channel + "], message[" + message + "]");
    }

    @Override
    public void onSubscribe(String channel, int subscribedChannels) {
        logger.info("onSubscribe: channel[" + channel + "]," + "subscribedChannels[" + subscribedChannels + "]");
    }

    @Override
    public void onUnsubscribe(String channel, int subscribedChannels) {
        logger.info("onUnsubscribe: channel[" + channel + "], " + "subscribedChannels[" + subscribedChannels + "]");
    }

    @Override
    public void onPUnsubscribe(String pattern, int subscribedChannels) {
        logger.info("onPUnsubscribe: pattern[" + pattern + "]," + "subscribedChannels[" + subscribedChannels + "]");
    }

    @Override
    public void onPSubscribe(String pattern, int subscribedChannels) {
        logger.info("onPSubscribe: pattern[" + pattern + "], " + "subscribedChannels[" + subscribedChannels + "]");
    }
}