spring jms

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd"
default-autowire="byName">

(1) 


<bean id="jmsFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL" value="tcp://localhost:61616"></property>
<property name="useAsyncSend" value="true"></property>
</bean>


<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<constructor-arg index="0">
<ref local="jmsFactory" />
</constructor-arg>
</bean>



<bean id="queueDestination" class="org.apache.activemq.command.ActiveMQQueue">
<property name="physicalName" value="queueDestination"></property>
</bean>

<bean id="jmsListener" class="com.jms.listener"></bean>


<bean id="defaultMessageListener" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="jmsFactory"></property>
<property name="destination" ref="queueDestination"></property>
<property name="messageListener" ref="jmsListener"></property>
<property name="messageSelector" value="isAdmin=true"></property>
</bean>

</beans>

(2) 发送消息，发送一个自定义的对象

package com.jms.test;

import java.util.Date;

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

import org.apache.activemq.command.ActiveMQQueue;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;

import com.jms.util.DateUtil;
import com.jms.vo.BasicMessage;
import com.jms.vo.MessageType;

public class SendMessageTest {
   private static String [] locations = new String[]{"classpath:applicationJMS.xml"};
   static JmsTemplate jmsTemplate ;
   static ActiveMQQueue messageQueue ;
   static{
       ApplicationContext context = new ClassPathXmlApplicationContext(locations);
       jmsTemplate = (JmsTemplate) context.getBean("jmsTemplate");
       messageQueue = (ActiveMQQueue) context.getBean("messageQueue");
       System.out.println(messageQueue);
   }

   @Test
   public void sendMessage(){
       jmsTemplate.send(messageQueue,new MessageCreator() {

           @Override
           public Message createMessage(Session session) throws JMSException {
               BasicMessage basicMessage = new BasicMessage();
               basicMessage.setMessageId(1001);
               basicMessage.setMessageType(MessageType.PRICE_UPDATE);
               basicMessage.setMessageDes("新品匹配");
               basicMessage.setMessageSendTime(DateUtil.getDateString(new Date()));
               ObjectMessage objMessage = session.createObjectMessage();
               objMessage.setObject(basicMessage);
               return objMessage;
           }
       });

   }

（3）消息的监听

package com.jms.listener;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.ObjectMessage;

import com.jms.vo.BasicMessage;
import com.jms.vo.MessageType;

public class MessageListener implements javax.jms.MessageListener {

   static private String lastSendTime = "";
   static private MessageType lastMessageType = null ;


   public void onMessage(Message message) {
       try {
           System.out.println("接收到JMS消息.");
           ObjectMessage objMessage = (ObjectMessage) message ;
           BasicMessage basicMessage = (BasicMessage) objMessage.getObject();
           String sendTime = basicMessage.getMessageSendTime();
           MessageType messageType = basicMessage.getMessageType();
           if (!"".equals(lastSendTime)) {
               double differentTime = compareTime(sendTime, lastSendTime);
               if (lastMessageType == basicMessage.getMessageType()
                       && differentTime <= 30) {
                   System.out.println("相同的消息正在处理，此消息将丢弃..");
                   System.out.println("相差时间:" + differentTime);

               } else {
                   lastSendTime = sendTime;
                   lastMessageType = messageType;
                   operateMessage(basicMessage);
               }
           } else {
               lastSendTime = sendTime;
               lastMessageType = messageType;
               operateMessage(basicMessage);

           }
       } catch (JMSException e) {
           e.printStackTrace();
       }

   }

   public void operateMessage(BasicMessage basicMessage) {
       if (basicMessage.getMessageType() == MessageType.NEW_PRODUCT) {
           System.out.println("收到新品消息..");
       } else if (basicMessage.getMessageType() == MessageType.PRICE_UPDATE) {
           System.out.println("收到价格更新消息.");
       } else {
           System.out.println("收到无用消息");
       }
   }

   /*
   * 计算2个时间相差多少分钟
   */
   public double compareTime(String sendTime, String lastSendTime) {
       double time3 = 0;
       try {
           DateFormat simpleDateFormate = new SimpleDateFormat(
                   "yyyy-MM-dd hh:mm:ss");
           long time1 = simpleDateFormate.parse(sendTime).getTime();
           long time2 = simpleDateFormate.parse(lastSendTime).getTime();
           time3 = ((double)(time1 - time2)) / (1000 * 60);
           System.out.println(time1+":"+time2+":"+(time1-time2)/60);
       } catch (ParseException e) {
           e.printStackTrace();
       }
       return time3;
   }