ActiveMQ服务器之间传输对象,项目A发送对象到项目B接收发送对象《一》

项目A发送消息端:

        // TODO Auto-generated method stub
        ConnectionFactory connectionFactory; // Connection :JMS 客户端到JMS
        // Provider 的连接
        Connection connection = null; // Session: 一个发送或接收消息的线程
        Session session; // Destination :消息的目的地;消息发送给谁.
        Destination destination; // MessageProducer:消息发送者
        MessageProducer producer; // TextMessage message;
        // 构造ConnectionFactory实例对象,此处采用ActiveMq的实现jar
        connectionFactory = new ActiveMQConnectionFactory(
                ActiveMQConnection.DEFAULT_USER,
                ActiveMQConnection.DEFAULT_PASSWORD, "tcp://localhost:61616");
 
        try { // 构造从工厂得到连接对象
            connection = connectionFactory.createConnection();
            // 启动
            connection.start();
            // 获取操作连接
            session = connection.createSession(Boolean.TRUE,
                    Session.AUTO_ACKNOWLEDGE);
            // 获取session注意参数值xingbo.xu-queue是一个服务器的queue,须在在ActiveMq的console配置
            destination = session.createQueue("FirstQueue");
            // 得到消息生成者【发送者】
            producer = session.createProducer(destination);
            // 设置不持久化,此处学习,实际根据项目决定
            producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
            // 构造消息,此处写死,项目就是参数,或者方法获取
 
            ActiveMQObjectMessage msg = (ActiveMQObjectMessage) session
                    .createObjectMessage();
            msg.setObject((Serializable) user);
            //将对象发送
            producer.send(msg);
            
            session.commit();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (null != connection)
                    connection.close();
            } catch (Throwable ignore) {
            }
        }

项目B 接受对象:

因为使用监听一直触发不了,没有解决,所以使用项目运行时开启线程持续接收消息。

开启线程:

public class MyListener  implements ServletContextListener   {
 
    
    private MyThread myThread;  
    
    public void contextDestroyed(ServletContextEvent e) { 
        if (myThread != null && myThread.isInterrupted()) {  
            myThread.interrupt();  
        }  
    }  
  
    public void contextInitialized(ServletContextEvent e) {  
        String str = null;  
        if (str == null && myThread == null) {  
            myThread = new MyThread();  
            myThread.start(); // servlet 上下文初始化时启动 socket  
        }  
    } 
 
}

线程开启接收消息:

    public class MyThread extends Thread {
    
    public void run() {
 
 
        while (!this.isInterrupted()) {// 线程未中断执行循环
            try {
                Thread.sleep(200); // 每隔2000ms执行一次
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
 
 
            // ------------------ 开始执行 ---------------------------
 
 
            // ConnectionFactory :连接工厂,JMS 用它创建连接
            ConnectionFactory connectionFactory;
            // Connection :JMS 客户端到JMS Provider 的连接
            Connection connection = null;
            // Session: 一个发送或接收消息的线程
            Session session;
            // Destination :消息的目的地;消息发送给谁.
            Destination destination;
            // 消费者,消息接收者
            MessageConsumer consumer;
 
 
            connectionFactory = new ActiveMQConnectionFactory(
                    ActiveMQConnection.DEFAULT_USER,
                    ActiveMQConnection.DEFAULT_PASSWORD,
                    "tcp://localhost:61616");
 
 
            try {
                // 构造从工厂得到连接对象
                connection = connectionFactory.createConnection();
                // 启动
                connection.start();
                // 获取操作连接
                session = connection.createSession(Boolean.FALSE,
                        Session.AUTO_ACKNOWLEDGE);
                // 获取session注意参数值xingbo.xu-queue是一个服务器的queue,须在在ActiveMq的console配置
                destination = session.createQueue("FirstQueue");
                consumer = session.createConsumer(destination);
 
 
                consumer.setMessageListener(new MessageListener() {
 
 
                    @Override
                    public void onMessage(Message message) {
                        // TODO Auto-generated method stub
                        User user;
                        try {
                            user = (User) ((ObjectMessage) message).getObject();
                            if (message != null) {
                                // User s = (User) message.getObject();
                                System.out.println("收到的消息对象:"
                                        + user.getLoginName());
                                user.setCreateBy(new User("1"));
                                user.setUpdateBy(new User("1"));
                                //使用getBean方式获取Bean 因注解方式扫描不到.
                                SystemService systemService = (SystemService)ApplicationContextHandle.getBean("systemService");                                
                                systemService.saveUser(user);
                                
                            }
 
 
                        } catch (JMSException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    }
                });
 
 
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                try {
                    if (null != connection)
                        connection.close();
                } catch (Throwable ignore) {
                }
            }
        }
    }
}

配置Web.xml 配置线程监听。项目开启时启动线程

     <listener>
            <listener-class>com.thinkgem.jeesite.modules.test.web.MyListener</listener-class>
    </listener> 

 

posted @ 2018-10-12 14:00  ypr-  阅读(1920)  评论(0编辑  收藏  举报