<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>cn.how2j</groupId>
  <artifactId>activemq</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>activemq</name>
  <description>activemq</description>
  <dependencies>
	<dependency>
	    <groupId>org.apache.activemq</groupId>
	    <artifactId>activemq-all</artifactId>
	    <version>5.15.9</version>
	</dependency>  
      <dependency>
        <groupId>cn.hutool</groupId>
        <artifactId>hutool-all</artifactId>
        <version>4.3.1</version>
    </dependency>	
  </dependencies>
  
</project>

package cn.how2j.util;

import javax.swing.JOptionPane;

import cn.hutool.core.util.NetUtil;

public class ActiveMQUtil {

	public static void main(String[] args) {
		checkServer();
	}
	public static void checkServer() {
		if(NetUtil.isUsableLocalPort(8161)) {
			JOptionPane.showMessageDialog(null, "ActiveMQ 服务器未启动 ");
			System.exit(1);
		} 
	}
}

package cn.how2j.queue;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
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;

import cn.how2j.util.ActiveMQUtil;

public class TestProducer {

	//服务地址，端口默认61616
    private static final String url="tcp://127.0.0.1:61616";
    //这次发送的消息名称
    private static final String topicName="queue_style";
    public static void main(String[] args) throws JMSException {
    	//0. 先判断端口是否启动了  Active MQ 服务器
    	ActiveMQUtil.checkServer();
        //1.创建ConnectionFactory,绑定地址
        ConnectionFactory factory=new ActiveMQConnectionFactory(url);
        //2.创建Connection
        Connection connection= factory.createConnection();
        //3.启动连接
        connection.start();
        //4.创建会话
        Session session=connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        //5.创建一个目标 (队列类型)
        Destination destination=session.createQueue(topicName);
        //6.创建一个生产者
        MessageProducer producer=session.createProducer(destination);

        for (int i = 0; i < 100; i++) {
            //7.创建消息
            TextMessage textMessage=session.createTextMessage("队列消息-"+i);
            //8.发送消息
            producer.send(textMessage);
            System.out.println("发送："+textMessage.getText());
        }
        //7. 关闭连接
        connection.close();
    }
}

package cn.how2j.queue;

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;

import cn.how2j.util.ActiveMQUtil;
import cn.hutool.core.util.RandomUtil;
/**
 * 订阅者
 * @author root
 *
 */
public class TestConsumer {
	//服务地址，端口默认61616
    private static final String url="tcp://127.0.0.1:61616";
    //这次消费的消息名称
    private static final String topicName="queue_style";

    //消费者有可能是多个，为了区分不同的消费者，为其创建随机名称
    private static final String consumerName="consumer-" + RandomUtil.randomString(5);
    public static void main(String[] args) throws JMSException {
    	//0. 先判断端口是否启动了 Active MQ 服务器
    	ActiveMQUtil.checkServer();
    	System.out.printf("%s 消费者启动了。 %n", consumerName);

        //1.创建ConnectiongFactory,绑定地址
        ConnectionFactory factory=new ActiveMQConnectionFactory(url);
        //2.创建Connection
        Connection connection= factory.createConnection();
        //3.启动连接
        connection.start();
        //4.创建会话
        Session session=connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        //5.创建一个目标 （队列类型）
        Destination destination=session.createQueue(topicName);
        //6.创建一个消费者
        MessageConsumer consumer=session.createConsumer(destination);
        //7.创建一个监听器
        consumer.setMessageListener(new MessageListener() {

            public void onMessage(Message arg0) {
                // TODO Auto-generated method stub
                TextMessage textMessage=(TextMessage)arg0;
                try {
                    System.out.println(consumerName +" 接收消息："+textMessage.getText());
                } catch (JMSException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

            }
        });
        
        //8. 因为不知道什么时候有，所以没法主动关闭，就不关闭了，一直处于监听状态
        //connection.close();
    }
}