使用ActiveMQ收发JMS

最新推荐文章于 2021-02-24 15:21:22 发布

最新推荐文章于 2021-02-24 15:21:22 发布 · 138 阅读

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#JMS #ActiveMQ #Apache

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本文通过两个示例介绍Java消息服务(JMS)的基本使用方法：一是本机测试版，演示如何发送和接收消息；二是多机通讯版，展示跨主机的消息传递过程。

1.本机测试版

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQQueue;

public class jmsTest {

    public static void main(String[] args) throws Exception {

//    	也可以设置为本地以作测试用，端口号任意选择未占用的即可
        ConnectionFactory factory = new ActiveMQConnectionFactory("vm://localhost:6176");
   
        Connection connection = factory.createConnection();
        connection.start();
       
        Queue queue = new ActiveMQQueue("testQueue");
       
        final Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Message message = session.createTextMessage("Hello JMS!");
//    	消息生产者
        MessageProducer producer = session.createProducer(queue);
        producer.send(message);
   
        System.out.println("Send Message Completed!");
        
//     	消息消费者
        MessageConsumer comsumer = session.createConsumer(queue);
        Message recvMessage = comsumer.receive();
        System.out.println(((TextMessage)recvMessage).getText());
    }

}

2.多机通讯版

2.1消息生产者

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQQueue;

public class jmsTest {

    public static void main(String[] args) throws Exception {
//    	目标主机的连接建立,端口号任意选择未占用的即可
    	ConnectionFactory factory = new ActiveMQConnectionFactory("tcp://169.100.100.100:61616");
   
        Connection connection = factory.createConnection();
        connection.start();
       
        Queue queue = new ActiveMQQueue("testQueue");
       
        final Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Message message = session.createTextMessage("Hello JMS!");
//    	消息生产者
        MessageProducer producer = session.createProducer(queue);
        producer.send(message);
   
        System.out.println("Send Message Completed!");
        
}

2.2消息消费者

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQQueue;

public class receiver {

    public static void main(String[] args) throws Exception {

//     	与消息生产者配置相同的ip及端口号        
        ConnectionFactory factory = new ActiveMQConnectionFactory("tcp://169.100.100.100:61616");
   
        Connection connection = factory.createConnection();
        connection.start();

//     	与消息生产者new相同Queue连接实例       
        Queue queue = new ActiveMQQueue("testQueue");
       
        final Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
  
//     	消息消费者
        MessageConsumer comsumer = session.createConsumer(queue);
        Message recvMessage = comsumer.receive();
        System.out.println(((TextMessage)recvMessage).getText());
    }

}