ActiveMQ发布/订阅模式实例

1. 发送端

package com.ainy.demo;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.JMSException;
import org.apache.activemq.ActiveMQConnectionFactory;

/**
 * 
 * 

 * TODO 发布/订阅模式 发送
 * 
 * 
 * @author AINY
 * @version 2019年4月15日
 */
public class SendActiveMqTopic {
	public static void main(String[] args) throws JMSException {
		ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://10.2.7.7:61616");
		Connection connection = connectionFactory.createConnection();
		connection.start();
		Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
		Topic topic = session.createTopic("test-topic");
		MessageProducer producer = session.createProducer(topic);
		TextMessage message = session.createTextMessage("消息内容ceshi");
		producer.send(message);
		producer.close();
		session.close();
		connection.close();
	}
}

2. 接收

package com.ainy.demo;

import java.io.IOException;

import javax.jms.Connection;
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 javax.jms.Topic;

import org.apache.activemq.ActiveMQConnectionFactory;

/**
 * 
 * 

 * TODO 发布/订阅模式 接收
 * 
 * 
 * @author AINY
 * @version 2019年4月15日
 */
public class ReceiveActiveMqTopic {
	public static void main(String[] args) throws JMSException, IOException {

		// 1.创建连接工厂对象
		ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://10.2.7.7:61616");
		// 2.创建Connection对象
		Connection connection = connectionFactory.createConnection();
		// 3.开启连接
		connection.start();
		// 4.创建会话session
		Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
		// 5.topic主题
		Topic topic = session.createTopic("test-topic");
		// 6.创建消息的提供者consumer
		MessageConsumer consumer = session.createConsumer(topic);
		// 7.设置监听器
		consumer.setMessageListener(new MessageListener() {

			@Override
			public void onMessage(Message message) {
				if (message instanceof TextMessage) {
					TextMessage textMessage = (TextMessage) message;
					try {
						System.out.println(textMessage.getText());
					} catch (JMSException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}

			}
		});

		// 8.等待接收消息
		System.out.println("topic消费者开始接收消息");
		System.in.read();
		// 9.close
		consumer.close();
		session.close();
		connection.close();
		System.out.println("关闭...");

	}
}

3. 测试方法，将消费者运行两次，也就是两个消费者，然后运行发送者，会发现两个接收端全部收到了消息，也就是发布和订阅