Question

所以我试图通过带有消息Id选择器的JMS来消费来自Tibco EMS代理的消息。如果消息是NON_PERSISTENT，我可以通过它们的JMSMessageID来选择它们，并且一切正常。

如果消息是PERSISTENT，则选择器不会检索任何内容。我在Apache ActiveMQ上尝试了相同的代码，它在两种情况下都有效。我已经通过EMS样品，看不到任何明显的东西。想知道是否有一些EMS设置可能会影响这个......

如果省略选择器，则无论DeliveryMode如何，都会正确使用消息。

这是我用来复制它的内容。

非常感谢任何帮助：）

package com;

import javax.jms.*;
import com.tibco.tibjms.TibjmsConnectionFactory;

public class JMSTest {
    String msgIdPersistent = "";
    String msgIdNon_Persistent = "";
    String serverUrl = "tcp://localhost:7222";
    String queueName = "test";

    public static void main(String[] args) {
        JMSTest test = new JMSTest();
        try {
            test.publish();
            test.deleteBySelector();
        }catch(Exception ex) {
            ex.printStackTrace();
        }
    }

    public void deleteBySelector() throws Exception {
        // Create connection and session
        ConnectionFactory factory = new TibjmsConnectionFactory(serverUrl);
        Connection connection = factory.createConnection();
        connection.start();
        Session session = connection.createSession();

        // Delete non-persistent
        //
        String selectorNonPersist  = "JMSMessageID='" + msgIdNon_Persistent + "'";
        MessageConsumer nonPersistReceiver = session.createConsumer(session.createQueue(queueName), selectorNonPersist);
        Message nonPersistMsg = null;
        nonPersistMsg = nonPersistReceiver.receive(1000);
        System.out.println("NON PERSISTENT SELECTOR:  " + ((nonPersistMsg!=null) ? "SUCCESS" : "FAIL"));

        // Delete Persistent - **** THIS DOESN'T WORK *****
        //
        String selectorPersist  = "JMSMessageID='" + msgIdPersistent + "'";
        MessageConsumer persistReceiver = session.createConsumer(session.createQueue(queueName), selectorPersist);
        Message persistMsg = null;
        persistMsg = persistReceiver.receive(1000);
        System.out.println("PERSISTENT SELECTOR:  " + ((persistMsg!=null) ? "SUCCESS" : "FAIL"));   
    }

    public void publish() throws Exception {
        ConnectionFactory factory = new com.tibco.tibjms.TibjmsConnectionFactory(serverUrl);
        Connection connection = factory.createConnection();
        connection.start();
        Session session = connection.createSession(javax.jms.Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("test");

        // Send persistent message
        //
        System.out.println("Persistent publish");
        MessageProducer producerPersistent = session.createProducer(null);
        producerPersistent.setDeliveryMode(DeliveryMode.PERSISTENT);
        TextMessage messagePersistent = session.createTextMessage("PERSISTENT");
        producerPersistent.send(destination, messagePersistent);
        msgIdPersistent = messagePersistent.getJMSMessageID();
        System.out.println("\tMsgId=" + msgIdPersistent);

        // Send Non Persistent message
        //
        System.out.println("NON Persistent publish");
        MessageProducer producernonPersistent = session.createProducer(destination);
        producernonPersistent.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        TextMessage messageNonPersistent = session.createTextMessage("NON_PERSISTENT");
        producernonPersistent.send(messageNonPersistent);
        msgIdNon_Persistent = messageNonPersistent.getJMSMessageID();
        System.out.println("\tMsgId=" + msgIdNon_Persistent);

        // Clean up
        session.close();
        connection.close();

        System.out.println("Done publish\n");
    }
}

我从中获得的输出是：

    Persistent publish
        MsgId=ID:EMS-SERVER.3D856ECE827932:1
    NON Persistent publish
        MsgId=ID:EMS-SERVER.3D856ECE827932:2
    Done publish

    NON PERSISTENT SELECTOR:  SUCCESS
    PERSISTENT SELECTOR:  FAIL

Answer 1

我已经在8.2.x中确认了它的错误。我升级到8.3.x并且工作正常。

使用Java（JMS）中的选择器尝试在Tibco EMS上使用持久性消息时遇到问题

1 个答案: