《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