activemq发布订阅

最新推荐文章于 2025-09-11 21:03:21 发布

转载最新推荐文章于 2025-09-11 21:03:21 发布 · 53 阅读

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原文链接：https://my.oschina.net/sniperLi/blog/632969

文章标签：

#python #java #网络

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关键代码，创建topic

Destination destination = session.createTopic("topic1");

发布者：

package com.sniper.jms.topic;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;

/**
 * 发布者
 * @author audaque
 *
 */
public class Sender {
    public static void main(String[] args) {
        ConnectionFactory connectionFactory; // 连接工厂
        Connection connection = null; // 连接
        Session session = null;
        
        try {
            // 实例化连接工厂
            connectionFactory = new ActiveMQConnectionFactory("sniper", "sniper", "tcp://sniper0:61616");
            
            connection = connectionFactory.createConnection(); // 通过连接工厂获取连接
            connection.start(); // 启动连接
            
            session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE); // 创建Session，没有事务
            // 消息的目的地
            Destination destination = session.createTopic("topic1");
            // 创建消息生产者
            MessageProducer messageProducer = session.createProducer(destination); 
            //设置消息不做持久化
            messageProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
            
            // 发送消息
            for(int i=0; i<2; i++){
                TextMessage message = session.createTextMessage("ActiveMQ 发送的消息"+i);
                System.out.println("发送消息："+"ActiveMQ 发送的消息"+i);
                messageProducer.send(message);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally{
            if(connection!=null){
                try {
                    connection.close();
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    
}

订阅者1：

package com.sniper.jms.topic;

import java.util.concurrent.TimeUnit;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;

/**
 * 订阅者1
 * @author audaque
 *
 */
public class Receiver1 {
    
    public static void main(String[] args) {
        ConnectionFactory connectionFactory; // 连接工厂
        Connection connection = null; // 连接
        Session session = null;
        
        try {
            // 实例化连接工厂
            connectionFactory = new ActiveMQConnectionFactory("sniper", "sniper", "tcp://sniper0:61616");
            connection = connectionFactory.createConnection();  // 通过连接工厂获取连接
            connection.start(); // 启动连接
            
            //自动签收，就是客户端接收到消息之后，会自动给服务端发送消息表示消息已经签收
            session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE); // 创建Session
            
            Destination destination = session.createTopic("topic1");
            MessageConsumer messageConsumer = session.createConsumer(destination); // 创建消息消费者
            
            messageConsumer.setMessageListener(new MessageListener() {
                public void onMessage(Message message) {
                    if(message != null){
                        TextMessage textMessage = (TextMessage)message;
                        try {
                            System.err.println("收到的消息：" + textMessage.getText());
                        } catch (JMSException e) {
                            e.printStackTrace();
                        }
                    }
                }
            });
            
            try {
                TimeUnit.SECONDS.sleep(Integer.MAX_VALUE);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        } catch (JMSException e) {
            e.printStackTrace();
        } finally {
            if(connection != null) {
                try {
                    connection.close();
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    
}

订阅者2：

package com.sniper.jms.topic;

import java.util.concurrent.TimeUnit;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;

/**
 * 订阅者2
 * @author audaque
 *
 */
public class Receiver2 {
    
    public static void main(String[] args) {
        ConnectionFactory connectionFactory; // 连接工厂
        Connection connection = null; // 连接
        Session session = null;
        
        try {
            // 实例化连接工厂
            connectionFactory = new ActiveMQConnectionFactory("sniper", "sniper", "tcp://sniper0:61616");
            connection = connectionFactory.createConnection();  // 通过连接工厂获取连接
            connection.start(); // 启动连接
            
            //自动签收，就是客户端接收到消息之后，会自动给服务端发送消息表示消息已经签收
            session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE); // 创建Session
            
            Destination destination = session.createTopic("topic1");
            MessageConsumer messageConsumer = session.createConsumer(destination); // 创建消息消费者
            
            messageConsumer.setMessageListener(new MessageListener() {
                public void onMessage(Message message) {
                    if(message != null){
                        TextMessage textMessage = (TextMessage)message;
                        try {
                            System.err.println("Receiver2收到的消息：" + textMessage.getText());
                        } catch (JMSException e) {
                            e.printStackTrace();
                        }
                    }
                }
            });
            
            try {
                TimeUnit.SECONDS.sleep(Integer.MAX_VALUE);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        } catch (JMSException e) {
            e.printStackTrace();
        } finally {
            if(connection != null) {
                try {
                    connection.close();
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    
}

转载于:https://my.oschina.net/sniperLi/blog/632969