ACTIVEMQ 发布与订阅

发布消息：

 

代码

import  javax.jms.Connection;
import  javax.jms.JMSException;
import  javax.jms.Message;
import  javax.jms.MessageConsumer;
import  javax.jms.MessageListener;
import  javax.jms.MessageProducer;
import  javax.jms.Session;
import  javax.jms.TextMessage;
import  javax.jms.Topic;

import  org.apache.activemq.ActiveMQConnectionFactory;
import  org.apache.activemq.broker.BrokerService;
import  org.apache.activemq.command.ActiveMQTopic;

public   class  TopicTest {

public   static   void  main(String[] args)  throws  Exception {
        ActiveMQConnectionFactory factory  =   new  ActiveMQConnectionFactory( " tcp://localhost:61616 " );
        Connection connection  =  factory.createConnection();
        connection.start();
        
        
        
         // 创建一个Topic
        Topic topic =   new  ActiveMQTopic( " testTopic " );
        Session session  =  connection.createSession( false , Session.AUTO_ACKNOWLEDGE);
        

         // 创建一个生产者，然后发送多个消息。
        MessageProducer producer  =  session.createProducer(topic);
         for ( int  i = 0 ; i < 10 ; i ++ ){
            producer.send(session.createTextMessage( " zyg: "   +  i));
        }
        
    }
}

 

 

订阅消息

 

代码

import  javax.jms.Connection;
import  javax.jms.JMSException;
import  javax.jms.Message;
import  javax.jms.MessageConsumer;
import  javax.jms.MessageListener;
import  javax.jms.MessageProducer;
import  javax.jms.Session;
import  javax.jms.TextMessage;
import  javax.jms.Topic;

import  org.apache.activemq.ActiveMQConnectionFactory;
import  org.apache.activemq.broker.BrokerService;
import  org.apache.activemq.command.ActiveMQTopic;


public   class  TestComsumer {
     public   static   void  main(String[] args)  throws  Exception {
        ActiveMQConnectionFactory factory  =   new  ActiveMQConnectionFactory( " tcp://localhost:61616 " );
        Connection connection  =  factory.createConnection();
        connection.start();
       
        
        
         // 创建一个Topic
        Topic topic =   new  ActiveMQTopic( " testTopic " );
        Session session  =  connection.createSession( false , Session.AUTO_ACKNOWLEDGE);
        
         // 注册消费者1
        MessageConsumer comsumer1  =  session.createConsumer(topic);
        comsumer1.setMessageListener( new  MessageListener(){
             public   void  onMessage(Message m) {
                 try  {
                    System.out.println( " Consumer1 get  "   +  ((TextMessage)m).getText());
                }  catch  (JMSException e) {
                    e.printStackTrace();
                }
            }
        });
         // 注册消费者2
        MessageConsumer comsumer2  =  session.createConsumer(topic);
        comsumer2.setMessageListener( new  MessageListener(){
             public   void  onMessage(Message m) {
                 try  {
                    System.out.println( " Consumer2 get  "   +  ((TextMessage)m).getText());
                }  catch  (JMSException e) {
                    e.printStackTrace();
                }
            }
        });
         // 创建一个生产者，然后发送多个消息。
       
    }

}