redis

RedisUtil工具类

public class RedisUtil {
private static JedisCluster jedisCluster;
static {
JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
jedisPoolConfig.setMaxTotal(200);
jedisPoolConfig.setMaxIdle(20);
jedisPoolConfig.setMaxWaitMillis(5000);
jedisPoolConfig.setTestOnBorrow(true);

    Set<HostAndPort> nodes = new HashSet<>();
    nodes.add(new HostAndPort(你的redis集群ip, 端口));
    ...

    jedisCluster = new JedisCluster(nodes);
}

//发布消息
public static void publish(String channel, String message){
    jedisCluster.publish(channel, message);
}


//订阅消息
public static void subscribe(JedisPubSub jedisPubSub,String... channels){
    jedisCluster.subscribe(jedisPubSub,channels);
}

}
消息发布者

//发布者
public class RedisPublisher {

public static void main(String[] args) throws InterruptedException {
    for (int i=0;i<100;i++) {
        RedisUtil.publish("test_channel", "hi,"+i);
        Thread.sleep(10);
    }
}

}
消息订阅者

//订阅者
public class RedisSubscriber {
public static void main(String[] args) {

    RedisUtil.subscribe(new RedisJedisPubSub(),"test_channel");
}

}

class RedisJedisPubSub extends JedisPubSub{
//取得订阅消息后的处理
@Override
public void onMessage(String channel, String message) {
System.out.println(channel + “=” + message);
}
}
先启动消息订阅者，再启动消息发布者，看控制台打出的信息
————————————————
版权声明：本文为优快云博主「依鹏」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.youkuaiyun.com/m0_37240709/article/details/83447495