activemq 的小实验

最新推荐文章于 2025-09-05 16:34:31 发布

转载最新推荐文章于 2025-09-05 16:34:31 发布 · 114 阅读

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原文链接：http://www.cnblogs.com/hansongjiang/p/4071498.html

文章标签：

#java

本文提供了使用ActiveMQ作为消息中间件的客户端实例，演示了如何发送和接收包含键值对信息的消息。通过创建连接、会话、生产者和消费者，实现消息的发送与接收过程，并展示了消息内容的解析。

 1 package ch02.chat;
 2 
 3 
 4 import javax.jms.Connection;
 5 import javax.jms.ConnectionFactory;
 6 import javax.jms.Destination;
 7 import javax.jms.MapMessage;
 8 import javax.jms.MessageProducer;
 9 import javax.jms.Session;
10 
11 import org.apache.activemq.ActiveMQConnectionFactory;
12 
13 class Send
14 {
15     public static void main(String[] args) throws Exception {    
16         ConnectionFactory connectionFactory = new ActiveMQConnectionFactory();    
17        
18         Connection connection = (Connection) connectionFactory.createConnection();    
19         connection.start();    
20        
21         Session session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);    
22         Destination destination = session.createQueue("my-queue");    
23        
24         MessageProducer producer = session.createProducer(destination);    
25         for(int i=0; i<3; i++) {    
26             
27             MapMessage message=session.createMapMessage();
28             message.setLong("age",15 );
29             message.setString("name", "zhangsa");
30             Thread.sleep(1000);    
31             //通过消息生产者发出消息    
32             producer.send(message);    
33         }    
34         session.commit();    
35         session.close();    
36         connection.close();    
37     } 
38 
39 
40 
41 }

View Code

1.发送客户端，发送3个key-value的信息、

用localhost:8161查看message的内容：

3.开启消费进程

 1 package ch02.chat;
 2 
 3 import java.sql.Connection;
 4 
 5 import javax.jms.ConnectionFactory;
 6 import javax.jms.Destination;
 7 import javax.jms.JMSException;
 8 import javax.jms.MapMessage;
 9 import javax.jms.Message;
10 import javax.jms.MessageConsumer;
11 import javax.jms.MessageListener;
12 import javax.jms.Session;
13 
14 import org.apache.activemq.ActiveMQConnectionFactory;
15 
16 public class Receive {
17 
18     public static void main(String[] args) throws JMSException {
19         // TODO Auto-generated method stub
20         ConnectionFactory  conFactory=new ActiveMQConnectionFactory();
21        javax.jms.Connection con=conFactory.createConnection();
22        con.start();
23       final  Session session=con.createSession(false,Session.AUTO_ACKNOWLEDGE );
24       Destination des=session.createQueue("my-queue");
25       MessageConsumer consumer=session.createConsumer(des);
26       consumer.setMessageListener(new MessageListener(){
27 
28         @Override
29         public void onMessage(Message m) {
30             // TODO Auto-generated method stub
31             if(m instanceof MapMessage){
32                 MapMessage mm=(MapMessage)m;
33             try {
34                 System.out.println(mm.getLong("age"));
35                 System.out.println(mm.getString("name"));
36             } catch (JMSException e) {
37                 // TODO Auto-generated catch block
38                 e.printStackTrace();
39             }
40             
41             }
42         
43         }
44           
45           
46           
47       });
48       
49        
50     }
51 
52 }