ACTIVEMQ 发布与订阅

最新推荐文章于 2025-09-05 21:22:23 发布

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最新推荐文章于 2025-09-05 21:22:23 发布

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原文链接：http://www.cnblogs.com/yg_zhang/archive/2010/10/11/1847531.html

本文介绍如何使用Java和ActiveMQ实现主题消息的发布与订阅。通过示例代码展示了如何创建连接工厂、连接、会话、主题、生产者及消费者，并实现了消息的发送与接收。

发布消息：

代码

订阅消息

代码

import javax.jms.Connection;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.command.ActiveMQTopic;

public class TestComsumer {
    public static void main(String[] args) throws Exception {
        ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("tcp://localhost:61616");
        Connection connection = factory.createConnection();
        connection.start();



        //创建一个Topic
        Topic topic= new ActiveMQTopic("testTopic");
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

        //注册消费者1
        MessageConsumer comsumer1 = session.createConsumer(topic);
        comsumer1.setMessageListener(new MessageListener(){
            public void onMessage(Message m) {
                try {
                    System.out.println("Consumer1 get " + ((TextMessage)m).getText());
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        });
        //注册消费者2
        MessageConsumer comsumer2 = session.createConsumer(topic);
        comsumer2.setMessageListener(new MessageListener(){
            public void onMessage(Message m) {
                try {
                    System.out.println("Consumer2 get " + ((TextMessage)m).getText());
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        });
        //创建一个生产者，然后发送多个消息。

    }

}

转载于:https://www.cnblogs.com/yg_zhang/archive/2010/10/11/1847531.html