《Pro Spring》学习笔记之Spring+ActiveMQ实现Queue通信(点对点)

spring配置文件:

 

<? xml version = " 1.0 "  encoding = " UTF-8 " ?>
< beans
    xmlns
= " http://www.springframework.org/schema/beans "
    xmlns:xsi
= " http://www.w3.org/2001/XMLSchema-instance "
    xsi:schemaLocation
= " http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd " >

< bean id = " connectionFactory "   class = " org.apache.activemq.ActiveMQConnectionFactory " >
  
< property name = " brokerURL " >
    
< value > tcp: // gx:61616</value>
   </ property >
 
</ bean >

< bean id = " jmsTemplate "   class = " org.springframework.jms.core.JmsTemplate " >
   
< property name = " connectionFactory " >
     
< ref bean = " connectionFactory " />
   
</ property >

  
   
</ bean >

< bean id = " destination "   class = " org.apache.activemq.command.ActiveMQQueue " >
  
< constructor - arg index = " 0 " >
    
< value > HelloWorldQueue </ value >
  
</ constructor - arg >
</ bean >
</ beans >

 生产者:

 

package  ch13.JMS;

import  javax.jms.Destination;
import  javax.jms.JMSException;
import  javax.jms.Message;
import  javax.jms.Session;

import  org.springframework.context.ApplicationContext;
import  org.springframework.context.support.ClassPathXmlApplicationContext;
import  org.springframework.jms.core.JmsTemplate;
import  org.springframework.jms.core.MessageCreator;

public   class  HelloWorldSender   {
    
public static void main(String args[]) throws Exception{
        ApplicationContext context 
= new ClassPathXmlApplicationContext(
                
new String[] {"ch13/JMS/applicationContext.xml"});
        JmsTemplate jmsTemplate 
= (JmsTemplate) context.getBean("jmsTemplate");
        Destination destination 
= (Destination) context.getBean("destination");
        jmsTemplate.send(destination, 
new MessageCreator() {
            
public Message createMessage(Session session) throws JMSException {
                
return session.createTextMessage("11");
            }

        }
);
    }

    


}

 

消费者:

 

package  ch13.JMS;

import  javax.jms.Destination;
import  javax.jms.TextMessage;

import  org.springframework.context.ApplicationContext;
import  org.springframework.context.support.ClassPathXmlApplicationContext;
import  org.springframework.jms.core.JmsTemplate;


public   class  HelloWorldReciver   {

    
      
public static void main(String args[]) throws Exception{
            ApplicationContext context
=new ClassPathXmlApplicationContext(
                    
new String[]{"ch13/JMS/applicationContext.xml"});
            JmsTemplate jmsTemplate
=(JmsTemplate)context.getBean("jmsTemplate");
            Destination destination
=(Destination)context.getBean("destination");
            System.out.println(
"will wait:"+jmsTemplate.getReceiveTimeout()+ " seconds for message");
            TextMessage msg
=(TextMessage)jmsTemplate.receive(destination);
            System.out.println(
"reviced msg is:"+msg.getText());
      }

    
   
}

 

测试步骤:

1、启动ActiveMQ  (bin下的activemq.bat)

2、运行HelloWorldReciver
       出现以下提示:will wait:-1 seconds for message

3、运行HelloWorldSender
       出现以下结果:

        will wait:-1 seconds for message
        reviced msg is:11

 

几点说明:JmsTemplate的默认reserviceTimeout为-1,也就是用不超时,等待接受消息,单位为毫秒

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