一、配置部分

ActiveMQ的安装这就不说了，很简单，

这个例子采用maven构建，首先看一下pom.xml


         
      
       4.0.0
        
      
       com.gzframe.demo
        
      
       gzframe
        
      
       war
        
      
       0.0.1-SNAPSHOT
        
      
       gzframe Maven Webapp
        
      
       http://maven.apache.org
          
        
            
       
        4.1.8.RELEASE
             
       
        3.1.0
         
          
              
             
        
         junit
              
        
         junit
              
        
         4.10
              
        
         test
            
               
               
        
         jstl
                
        
         jstl
                
        
         1.2
            
               
                   
        
         javax.servlet
                    
        
         servlet-api
                
        
         ${javax.servlet}
            
               
           
               
        
         org.springframework
                
        
         spring-core
                
        
         ${springframework}
            
           
               
        
         org.springframework
                
        
         spring-context
                
        
         ${springframework}
            
           
               
        
         org.springframework
                
        
         spring-tx
                
        
         ${springframework}
            
           
               
        
         org.springframework
                
        
         spring-webmvc
                
        
         ${springframework}
            
           
                 
        
         org.springframework
                  
        
         spring-jms
                  
        
         ${springframework}
              
           
           
               
        
         org.apache.xbean
                
        
         xbean-spring
                
        
         3.16
            
               
           
                 
        
         org.apache.activemq
                  
        
         activemq-core
                  
        
         5.7.0
            
            
                 
        
         org.apache.activemq
                  
        
         activemq-pool
                  
        
         5.12.1
              
               
            
          
       
        gzframe

接下来看一下web.xml，如下


     
       
      
       Archetype Created Web Application
          
        
              
       
        contextConfigLocation
               
       
                  classpath:spring-root.xml;         classpath:activemq.xml;     
           
          
            
       
        org.springframework.web.context.ContextLoaderListener
         
          
              
       
        springMVC
               
       
        org.springframework.web.servlet.DispatcherServlet
               
                   
        
         contextConfigLocation
                    
        
         classpath:spring-mvc-dispatch.xml
                
               
       
        1
           
          
              
       
        springMVC
               
       
        /
           
              
          
                
       
        characterEncodingFilter
                 
       
        org.springframework.web.filter.CharacterEncodingFilter
                 
                     
        
         encoding
                      
        
         UTF-8
                  
                 
                     
        
         forceEncoding
                      
        
         true
                  
             
            
                
       
        characterEncodingFilter
                 
       
        /*

其中spring-root.xml 很简单，负责加载一些spring的配置

spring-mvc-dispatch.xml如下

activemq.xml是关键的配置，如下


     
             
          
                  
              
          
              
               
           
              
          
              
               
                   
        
         gzframe.demo

二、代码部分

消息生产者ProducerService.java，代码如下

package com.gzframe.demo.activemq.producer;import javax.annotation.Resource;import javax.jms.Destination;import javax.jms.JMSException;import javax.jms.Message;import javax.jms.Session;import org.springframework.jms.core.JmsTemplate;import org.springframework.jms.core.MessageCreator;import org.springframework.stereotype.Service;@Servicepublic class ProducerService {    @Resource(name="jmsTemplate")    private JmsTemplate jmsTemplate;             /**       * 向指定队列发送消息       */      public void sendMessage(Destination destination, final String msg) {        System.out.println("向队列" + destination.toString() + "发送了消息------------" + msg);        jmsTemplate.send(destination, new MessageCreator() {          public Message createMessage(Session session) throws JMSException {            return session.createTextMessage(msg);          }        });      }         /**     * 向默认队列发送消息     */      public void sendMessage(final String msg) {        String destination =  jmsTemplate.getDefaultDestination().toString();        System.out.println("向队列" +destination+ "发送了消息------------" + msg);        jmsTemplate.send(new MessageCreator() {          public Message createMessage(Session session) throws JMSException {            return session.createTextMessage(msg);          }        });           }    }

消费者ConsumerService.java，代码如下

package com.gzframe.demo.activemq.consumer;import javax.annotation.Resource;import javax.jms.Destination;import javax.jms.JMSException;import javax.jms.TextMessage;import org.springframework.jms.core.JmsTemplate;import org.springframework.stereotype.Service;@Servicepublic class ConsumerService {    @Resource(name="jmsTemplate")    private JmsTemplate jmsTemplate;         /**     * 接收消息     */    public TextMessage receive(Destination destination) {        TextMessage tm = (TextMessage) jmsTemplate.receive(destination);        try {            System.out.println("从队列" + destination.toString() + "收到了消息：\t"                    + tm.getText());        } catch (JMSException e) {            e.printStackTrace();        }                return tm;            } }

三、页面部分

1.首先写一个欢迎页，welcome.jsp如下，

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%>
     Welcome    Welcome!!!
    去发消息
    从队列中取一个消息

2.然后是生产者页面jms_producer.jsp，如下

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%>
     JMS-Producer    JMS-Producer!!!
    
     
                      MessageText:
      ${time }                
          
     
    返回主页

3.接收者页面queue_receive.jsp，如下

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%>
     Receive    ${textMessage }
    返回主页

四、Controller控制器

1.首先controller到首页welcome页，WelcomeController.java如下：

package com.gzframe.demo.mvc.controller;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.servlet.ModelAndView;@Controllerpublic class WelcomeController {        @RequestMapping(value="/welcome",method=RequestMethod.GET)    public ModelAndView welcome(){        System.out.println("------------welcome");                ModelAndView mv = new ModelAndView();        mv.setViewName("welcome");        return mv;    }}

2.然后定义消息生产和消费的控制器，DemoController.java，代码如下

package com.gzframe.demo.mvc.controller;import java.io.IOException;import java.text.SimpleDateFormat;import java.util.*;import javax.annotation.Resource;import javax.jms.Destination;import javax.jms.JMSException;import javax.jms.TextMessage;import javax.management.MBeanServerConnection;import javax.management.remote.JMXConnector;import javax.management.remote.JMXConnectorFactory;import javax.management.remote.JMXServiceURL;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.servlet.ModelAndView;import com.gzframe.demo.activemq.consumer.ConsumerService;import com.gzframe.demo.activemq.producer.ProducerService;@Controllerpublic class DemoController {    //队列名gzframe.demo    @Resource(name="demoQueueDestination")    private Destination demoQueueDestination;    //队列消息生产者    @Resource(name="producerService")    private ProducerService producer;      //队列消息消费者    @Resource(name="consumerService")    private ConsumerService consumer;        @RequestMapping(value="/producer",method=RequestMethod.GET)    public ModelAndView producer(){        System.out.println("------------go producer");                Date now = new Date();         SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");        String time = dateFormat.format( now );         System.out.println(time);                ModelAndView mv = new ModelAndView();        mv.addObject("time", time);        mv.setViewName("jms_producer");                return mv;    }        @RequestMapping(value="/onsend",method=RequestMethod.POST)    public ModelAndView producer(@RequestParam("message") String message) {        System.out.println("------------send to jms");        ModelAndView mv = new ModelAndView();        producer.sendMessage(demoQueueDestination, message);        mv.setViewName("welcome");        return mv;    }        @RequestMapping(value="/receive",method=RequestMethod.GET)    public ModelAndView queue_receive() throws JMSException {        System.out.println("------------receive message");        ModelAndView mv = new ModelAndView();                TextMessage tm = consumer.receive(demoQueueDestination);        mv.addObject("textMessage", tm.getText());                mv.setViewName("queue_receive");        return mv;    }        /*     * ActiveMQ Manager Test     */    @RequestMapping(value="/jms",method=RequestMethod.GET)    public ModelAndView jmsManager() throws IOException {        System.out.println("------------jms manager");        ModelAndView mv = new ModelAndView();        mv.setViewName("welcome");                JMXServiceURL url = new JMXServiceURL("");        JMXConnector connector = JMXConnectorFactory.connect(url);        connector.connect();        MBeanServerConnection connection = connector.getMBeanServerConnection();                return mv;    }            }

五、效果展示

首先访问欢迎页，如下

然后点“去发消息”，进入到如下页面，默认消息框一已经填写了时间，点击提交，会将时间“2015-12-25 11:51:25”提交到qctivemq服务器中，

提交完成后，根据页面代码，会转到欢迎页，在欢迎页中既可以点击“从队列中取一个消息”，效果如下

可以看到，取到的消息即为刚才提交的时间，demo成功！

经过以上操作后的后台输出如下

六、加入监听器

以上例子中，接收消息是靠手动点击接收，下面将配置一个消息监听器“QueueMessageListener.java”，负责自动监听qctiveMQ中的队列消息，

一旦有新消息后，将自动读取消费，妈妈再也不用担心漏掉消息啦！

1.首先写一个监听的类“QueueMessageListener.java”，必须实现“MessageListerner”接口，代码如下

package com.gzframe.demo.activemq.listener;import javax.jms.JMSException;import javax.jms.Message;import javax.jms.MessageListener;import javax.jms.TextMessage;public class QueueMessageListener implements MessageListener {        //当收到消息后，自动调用该方法    @Override    public void onMessage(Message message) {                TextMessage tm = (TextMessage) message;        try {            System.out.println("QueueMessageListener监听到了文本消息：\t"                    + tm.getText());            //do something ...        } catch (JMSException e) {            e.printStackTrace();        }    }}

2.写完监听类后，打开activemq.xml配置文件，需要将这个监听配置到文件中，这样，应用加载后，即会加载此监听。

将以下的配置段加入到activemq.xml中

3.测试

配置完成后，重新启动服务，去消息发送页提交消息，提交完毕后，监听检测到，将立即消费掉，并在后台打印出来

后台输出如下

转载于:https://www.cnblogs.com/ruiati/p/7111199.html

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