spring 集成apache qpid 简单demo

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spring 提供spring-jms模块，用以集成JMS到spring 容器中，并提供jmsTemplate模版类来操作jms，类似集成jdbc数据库操作一样。

首先，我们新建一个applicationContext-qpid.xml来做qpid的集成操作

<?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.xsd        ">    <!-- Spring提供的JMS工具类，它可以进行消息发送、接收等 -->    <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">          <property name="connectionFactory" ref="jQpidConnectionFactory"/>      </bean>    <!-- 链接到java broker服务器  -->    <bean id="jQpidConnectionFactory" class="org.apache.qpid.client.AMQConnectionFactory">        <constructor-arg index="0" value="amqp://guest:guest@clientid/?brokerlist='tcp://localhost:5672'" />    </bean>    <!-- 缓存会话，保证单链接 -->    <bean id="jCachingConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">        <property name="targetConnectionFactory" ref="jQpidConnectionFactory" />        <property name="sessionCacheSize" value="1" />        <property name="reconnectOnException" value="true" />    </bean>    <!-- 订阅路径 -->    <bean id="jDestination" class="org.apache.qpid.client.AMQAnyDestination">        <constructor-arg index="0" value="ADDR:message_queue; {create: always}" />    </bean>    <!-- 接收事件处理器 -->    <bean id="jReceiver" class="com.liuxg.qpid.receiver.MsgReceiver" />    <!-- 事务处理 -->     <bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager"/>    <!-- 默认消息监听器  -->    <bean id="deviceStatusContainer"        class="org.springframework.jms.listener.DefaultMessageListenerContainer">        <property name="connectionFactory" ref="jCachingConnectionFactory" />        <property name="exceptionListener" ref="jCachingConnectionFactory" />        <property name="messageListener" ref="jReceiver" />        <property name="destination" ref="jDestination" />        <property name="transactionManager" ref="transactionManager"/>    </bean></beans>

然后需要把applicationContext-qpid.xml添加到web.xml的contextConfigLocation中

<context-param>        <param-name>contextConfigLocation</param-name>        <param-value>classpath*:META-INF/applicationContext*.xml</param-value></context-param>

然后，在发送端，可以利用模版类发送消息

@Servicepublic class SenderService {    @Autowired JmsTemplate jmsTemplate;    @Autowired AMQAnyDestination deviceStatusDestination;    /**      * 发送消息      */    public void sendMsg(){        jmsTemplate.send(deviceStatusDestination, new MessageCreator() {            @Override            public Message createMessage(Session session) throws JMSException {                return session.createTextMessage("hello world !!");            }        });    }}

这里发送的时候，可以利用spring的消息转化器，它支持String 和TextMessage, byte[] 和BytesMesssage还有java.util.Map 和 MapMessage的相互转化，例如下面

public void sendWithConversion() {    Map map = new HashMap();    map.put("Name", "Mark");    map.put("Age", new Integer(47));    jmsTemplate.convertAndSend("testQueue", map, new MessagePostProcessor() {        public Message postProcessMessage(Message message) throws JMSException {            message.setIntProperty("AccountID", 1234);            message.setJMSCorrelationID("123-00001");            return message;        }    });}

最后在接收端，可以定义一个类实现SessionAwareMessageListener或者DeviceStatusReceiver，这里我们实现SessionAwareMessageListener

public class MsgReceiver implements SessionAwareMessageListener<Message>  {    @Override    public void onMessage(Message message, Session session) throws JMSException {        JMSTextMessage xx = (JMSTextMessage) message;        String text = xx.getText();        System.out.println(text);    }}

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