Java 将消息从MQ发送到EMS（JMS）队列

我想将MQ队列中的消息发送到不同服务器上的EMS队列。我不确定如何使用Java实现这一点。如何确保在发送邮件时不会丢失任何邮件

我能够使用java使用来自MQ的消息

try {
    // Create a connection factory
    JmsFactoryFactory ff = JmsFactoryFactory.getInstance(WMQConstants.WMQ_PROVIDER);
    JmsConnectionFactory cf = ff.createConnectionFactory();

    // Set the properties
    cf.setStringProperty(WMQConstants.WMQ_HOST_NAME, HOST);
    cf.setIntProperty(WMQConstants.WMQ_PORT, PORT);
    cf.setStringProperty(WMQConstants.WMQ_CHANNEL, CHANNEL);
    cf.setIntProperty(WMQConstants.WMQ_CONNECTION_MODE, WMQConstants.WMQ_CM_CLIENT);
    cf.setStringProperty(WMQConstants.WMQ_QUEUE_MANAGER, QMGR);
    cf.setStringProperty(WMQConstants.WMQ_APPLICATIONNAME, "JmsPutGet (JMS)");
    cf.setBooleanProperty(WMQConstants.USER_AUTHENTICATION_MQCSP, true);
    cf.setStringProperty(WMQConstants.USERID, APP_USER);
    cf.setStringProperty(WMQConstants.PASSWORD, APP_PASSWORD);

    // Create JMS objects
    context = cf.createContext();
    destination = context.createQueue("queue:///" + QUEUE_NAME);

    long uniqueNumber = System.currentTimeMillis() % 1000;
    TextMessage message = context.createTextMessage("Your lucky number today is " + uniqueNumber);

    producer = context.createProducer();
    producer.send(destination, message);
    System.out.println("Sent message:\n" + message);

    consumer = context.createConsumer(destination); // autoclosable
    String receivedMessage = consumer.receiveBody(String.class, 15000); // in ms or 15 seconds

    System.out.println("\nReceived message:\n" + receivedMessage);

    recordSuccess();
} catch (JMSException jmsex) {
    recordFailure(jmsex);
}

System.exit(status);

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您的代码几乎是正确的，但是如果您想在程序中切换JMS提供程序，还必须切换JMS连接工厂。这是用于创建使用者和消息的中心（特定于提供者）类

因此，在创建上下文、生产者和消息时，您需要使用TIBCO的

com.TIBCO.tibjms.naming.TibjmsInitialContextFactory

，例如：

try {

  // 1) Create a MQ connection factory
  JmsFactoryFactory ff = JmsFactoryFactory.getInstance(WMQConstants.WMQ_PROVIDER);
  JmsConnectionFactory cf = ff.createConnectionFactory();

  // 2) Set the properties
  cf.setStringProperty(WMQConstants.WMQ_HOST_NAME, HOST);
  cf.setIntProperty(WMQConstants.WMQ_PORT, PORT);
  cf.setStringProperty(WMQConstants.WMQ_CHANNEL, CHANNEL);
  cf.setIntProperty(WMQConstants.WMQ_CONNECTION_MODE, WMQConstants.WMQ_CM_CLIENT);
  cf.setStringProperty(WMQConstants.WMQ_QUEUE_MANAGER, QMGR);
  cf.setStringProperty(WMQConstants.WMQ_APPLICATIONNAME, "JmsPutGet (JMS)");
  cf.setBooleanProperty(WMQConstants.USER_AUTHENTICATION_MQCSP, true);
  cf.setStringProperty(WMQConstants.USERID, APP_USER);
  cf.setStringProperty(WMQConstants.PASSWORD, APP_PASSWORD);

  // 3) Create MQ consumer
  JMSContext mqContext = cf.createContext();
  destination = mqContext.createQueue("queue:///" + QUEUE_NAME);
  consumer = mqContext.createConsumer(destination); // autoclosable

  // 4)  wait for message from MQ (or null)
  String receivedText = mqContext.receiveBody(String.class, 15000); // in ms or 15 seconds
  System.out.println("\nReceived message:\n" + receivedText);

  // 5) Create TIBCO EMS ConnectionFactory and an EMS MessageProducer
  TibjmsConnectionFactory emsCF = new com.tibco.tibjms.TibjmsConnectionFactory( "tcp://1.2.3.4:7222");
  Connection emsConnection = emsCF.createConnection(user, password);
  Session emsSession = emsConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
  MessageProducer emsProducer = emsSession.createProducer( emsSession.createQueue(QUEUE_NAME) );

  // 6) Create EMS TextMessage from MQ TextMessage
  TextMessage emsMsg = emsSession.createTextMessage( receivedText );

  // 7) publish to EMS
  emsProducer.send(emsMsg);

  // 8) cleanup
  emsConnection.close();

  recordSuccess();
} catch (JMSException jmsex) {
   recordFailure(jmsex);
}

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非常感谢你的回答。但是我不能理解主要的意思。我在MQ中有消息，我想在EMS中传输/发送这些消息。如何从MQ读取并写入EMS？@Newbie您需要用代码替换“创建JMS对象”下面的代码above@Newbie您的MQ上下文将无法创建EMS消息或发送到EMS代理…感谢您让它更清晰，我感谢您的努力。我知道您提到的代码将连接并向jms队列发送消息。但我的实际问题是如何将消息从一个队列传输到另一个队列。有什么方法可以从MQ读取消息而不是使用消息？