如何使用jedis进行发布订阅

jedis实现发布订阅，是通过让发布者和订阅者同时对某个channel（频道）进行操作，订阅者订阅了某个频道例如channel1，发布者往这个channel1里面publish东西，在pubsublistener的回调中就能收到这个消息。

代码如下：

源码工程：链接: https://pan.baidu.com/s/1nuSY99B 密码: huni

1、订阅者

package redis;

import redis.clients.jedis.Jedis;

class Subscribe {  

    public void redisSubscriber(final Jedis redisClient, final RedisMsgPubSubListener listener,final String channel ) {
        new Thread(new Runnable() {
            public void run() {
                 System.out.println("订阅了:"+channel);
                 redisClient.subscribe(listener, channel);
            }
        }).start();
    }
    public static void main(String args[]){
        new Subscribe().redisSubscriber(new RedisHelper().getJedis(), new RedisMsgPubSubListener(), "channel1");
    }
}

2.发布者

package redis;

import redis.clients.jedis.Jedis;

public class Publish {
       public void redisPublish(final Jedis redisClient,String channel,String message) throws Exception{
            redisClient.publish(channel,message);
        }
       public static void main(String args[]){
           try {
            new Publish().redisPublish(new RedisHelper().getJedis(),"channel1","我是天才");
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
       }
}

3、redishelper

package redis;
import redis.clients.jedis.Jedis;

/**
 * Created by cmq on 2017/1/9.
 */
public class RedisHelper {
        public Jedis getJedis(){
            Jedis jedis = new Jedis("222.201.145.215");
            jedis.select(1);
            return jedis;
        }
}

4、RedisMsgPubSubListener

package redis;

import redis.clients.jedis.JedisPubSub;  

public class RedisMsgPubSubListener extends JedisPubSub {  

    public void unsubscribe() {
        super.unsubscribe();
    }  

    public void unsubscribe(String... channels) {
        super.unsubscribe(channels);
    }  

    public void subscribe(String... channels) {
        super.subscribe(channels);
    }  

    public void psubscribe(String... patterns) {
        super.psubscribe(patterns);
    }  

    public void punsubscribe() {
        super.punsubscribe();
    }  

    public void punsubscribe(String... patterns) {
        super.punsubscribe(patterns);
    }  

    public void onMessage(String channel, String message) {
        System.out.println("channel:" + channel + "receives message :" + message);
        try {
            new Publish().redisPublish(new RedisHelper().getJedis(), "channel1", message+"第二次publish");
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
       // this.unsubscribe();
    }  

    public void onPMessage(String pattern, String channel, String message) {  

    }  

    public void onSubscribe(String channel, int subscribedChannels) {
        System.out.println("channel:" + channel + " is been subscribed:" + subscribedChannels);
    }  

    public void onPUnsubscribe(String pattern, int subscribedChannels) {  

    }  

    public void onPSubscribe(String pattern, int subscribedChannels) {  

    }  

    public void onUnsubscribe(String channel, int subscribedChannels) {
        System.out.println("channel:" + channel + "is been unsubscribed:" + subscribedChannels);
    }
}