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最近才接触到MQ,由于之前完全不知道是干嘛用的,还是很花了一点时间研究的~先来简单解释一下名词啦
一、名词解释
MQ
MQ(message queue)指消息队列,是应用程序对应用程序的通信方法。可以利用消息队列暂存数据报文。
MQ的原理其实就是生产者-消费者模式。有关生产者-消费者模式的详细解释可以看这篇博文http://blog.csdn.net/yolanda_nuonuo/article/details/62038122
MQ是一种异步通讯。
生产者,发送消息到MQ服务器
消费者,到MQ服务器,获取生产者发送的消息(根据MQ的不同配置,可以是MQ推送消息给消费者,或者是消费者主动从MQ获取消息)
JMS
JMS即
JAVA消息服务(Java Message Service),是一个Java平台中关于面向消息中间件(MOM)的API,用于在两个应用程序之间,或分布式系统中发送消息,进行异步通信。
使用JMS 的应用程序被称为JMS 客户端,处理消息路由与传递的消息系统被称为JMS Provider,而JMS 应用则是由多个JMS 客户端和一个JMS Provider 构成的业务系统。
发送消息的JMS 客户端被称为生产者(producer),而接收消息的JMS 客户端则被称为消费者(consumer)。同一JMS 客户端既可以是生产者也可以是消费者。
所以MQ跟JMS的关系就是,我们可以通过JMS来跟MQ进行通信。
二、具体实现
1.首先是发送数据,新建application-send.xml
<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:cache="http://www.springframework.org/schema/cache"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<context:property-placeholder ignore-unresolvable="false" location="classpath:application.properties" />
<context:annotation-config />
<!-- <context:component-scan base-package="com.*" /> -->
<bean id="ibmJmsConnectionFactory" class="com.ibm.mq.jms.MQQueueConnectionFactory">
<property name="hostName" value="${ibm.mqHostUrl}" />
<property name="port" value="${ibm.mqPort}" />
<property name="CCSID" value="0000" />
<property name="queueManager" value="${ibm.mqManager}" />
<property name="channel" value="${ibm.mqChannel}" />
<property name="transportType" value="1" />
</bean>
<bean id="ibmQueueConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
<property name="targetConnectionFactory" ref="ibmJmsConnectionFactory"/>
<property name="sessionCacheSize" value="10"/>
</bean>
<bean id="ibmQueue" class="com.ibm.mq.jms.MQQueue">
<property name="baseQueueName" value="${ibm.mqName}" />
</bean>
<bean id="ibmJmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="ibmQueueConnectionFactory" />
<property name="defaultDestination" ref="ibmQueue" />
<property name="pubSubDomain" value="false" />
</bean>
<bean id="ibmMessageSender" class="com.yolanda.sender.MessageSenderImpl">
</bean>
</beans>

2.发送数据的代码
先写一个接口
public interface MessageSender {
public void sendMessage(String message);
}
再写实现类
import java.io.UnsupportedEncodingException;
import javax.annotation.Resource;
import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Component;
@Component("ibmMessageSender")
public class MessageSenderImpl implements MessageSender {
@Resource(name="ibmJmsTemplate")
private JmsTemplate jmsTemplate;
/**
* 这里为什么要用final呢?是下面那个createTextMessage方法要求的...
*/
public void sendMessage(final String message) {
this.jmsTemplate.send(new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
return session.createTextMessage(message);
}
});
}
}

3.接下来就是收数据辣,新建application-recv.xml
<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:cache="http://www.springframework.org/schema/cache"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<bean id="ibmJmsConnectionFactory" class="com.ibm.mq.jms.MQQueueConnectionFactory">
<property name="hostName" value="${ibm.mqHostUrl}" />
<property name="port" value="${ibm.mqPort}" />
<property name="CCSID" value="1381" />
<property name="queueManager" value="${ibm.mqManager}" />
<property name="channel" value="${ibm.mqChannel}" />
<property name="transportType" value="1" />
</bean>
<bean id="ibmQueueConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
<property name="targetConnectionFactory" ref="ibmJmsConnectionFactory"/>
<property name="sessionCacheSize" value="10"/>
</bean>
<bean id="ibmQueue" class="com.ibm.mq.jms.MQQueue">
<property name="baseQueueName" value="MQTEST" />
</bean>
<bean id="queueContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="ibmQueueConnectionFactory" />
<property name="destination" ref="ibmQueue" />
<property name="pubSubDomain" value="false" />
<property name="concurrentConsumers" value="20" />
<property name="messageListener" ref="ibmTextMessageListener" />
</bean>
<!-- 异步接收消息处理类 -->
<bean id="ibmextMessageListener" class="com.yolanda.receive.TextMessageListener" />
</beans>

4.由于整合了Spring,又是用JMS,所以代码还是灰常简单的,这里我们只需要实现MessageListener的onMessage(),监听一下就可以啦
package com.yolanda.receiver;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;
import org.springframework.beans.factory.annotation.Autowired;
public class TextMessageListener implements MessageListener {
@Autowired
public void onMessage(Message message) {
try {
TextMessage msg = (TextMessage) message;
String msgStr = msg.getText();
System.out.println("Receive message:" + msgStr);
} catch (Exception e) {
e
.printStackTrace();
}
}

好啦,圆满结束啦,不用spring整合的话,代码还是比较繁琐的,果然还是用比较好呢!
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