EJB3.0 JBoss的JMS实例

1. 引入开发JMS相关Jar包

compile 'org.jboss.javaee:jboss-jms-api-1.1_spec:5.0.2.GA'

2. 在JBoss中配置Destination

我使用的是jboss-4.2.3.GA，如果启动模式是default，可以在default/deploy/jms目录下找到jbossmq-destinations-service.xml，进行相关配置，其它版本参见相应文档

<mbean code="org.jboss.mq.server.jmx.Queue"
	 name="jboss.mq.destination:service=Queue,name=myQueue">
    <depends optional-attribute-name="DestinationManager">jboss.mq:service=DestinationManager</depends>
  </mbean>

3. 编写接收队列消息的代码， 需要实现MessageListener接口

package com.icode.jejb.message;

import javax.ejb.ActivationConfigProperty;
import javax.ejb.MessageDriven;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;

/**
 * Created with IntelliJ IDEA.
 * User: ZhongGang
 * Date: 14-6-20
 * Time: 下午11:22
 */
@MessageDriven(activationConfig = {
        @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
        @ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/myQueue")
})
public class LogMessage implements MessageListener {

    @Override
    public void onMessage(Message message) {
        try {
            TextMessage textMessage = (TextMessage) message;
            System.out.println("Received message: " + textMessage.getText());
        } catch (JMSException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
    }
}

@MessageDriven注解定义类是一个消息驱动Bean， @ActivationConfigProperty定义相关的属性，基本的必要的属性要指定Destination的类型，是Topic还是Queue，Destination的名称

4. 编写发送消息的代码

package com.icode.jejb.web.servlet;

import javax.jms.*;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Created with IntelliJ IDEA.
 * User: alexz
 * Date: 14-6-23
 * Time: 下午3:32
 * To change this template use File | Settings | File Templates.
 */
public class SendMessageServlet extends HttpServlet {

    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        try {
            String message = req.getParameter("message");
            InitialContext context = new InitialContext();
            QueueConnectionFactory queueConnectionFactory = (QueueConnectionFactory) context.lookup("ConnectionFactory");
            QueueConnection queueConnection = queueConnectionFactory.createQueueConnection();
            QueueSession session = queueConnection.createQueueSession(false, QueueSession.AUTO_ACKNOWLEDGE);

            Queue queue = (Queue) context.lookup("queue/myQueue");
            TextMessage textMessage = session.createTextMessage(message);
            QueueSender sender = session.createSender(queue);
            sender.send(textMessage);

            session.close();
            queueConnection.close();
        } catch (NamingException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        } catch (JMSException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
    }
}

 4.1 获取连接工厂

 4.2 获取连接

 4.3 获取队列或订阅主题

 4.4 根据连接创建会话

 4.5 创建消息（可以是TextMessage, ObjectMessage等）

 4.6 使用会话发送消息