使用JAVA在JMS队列中发布消息

Question

我是JMS新手，经过长时间的搜索，我搜索出了一个连接到JMS的代码，并发布了一条消息。

问题是我需要在远程队列中发布消息，但我不知道如何建立连接到它并发布消息。

服务器类型：TIBCO EMS
服务器主机：******。net
端口：**USername:user
passsbrow:user123
队列：**。。。。顺序经营1.

我想建立连接，发布一条简单的消息，然后把它取回。请帮忙！提前谢谢

我从网上得到的代码

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Hashtable;
import javax.jms.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class emm {


         // Defines the JNDI context factory.
         public final static String JNDI_FACTORY="com.tibco.tibjms.naming.TibjmsInitialContextFactory";

         // Defines the JMS context factory.
         public final static String JMS_FACTORY="jms/TestConnectionFactory";

         // Defines the queue.
         public final static String QUEUE="CPW.GBR.POR.Public.Request.Order.Management.UpdateProvisioningStatus.1";

         private QueueConnectionFactory qconFactory;
         private ConnectionFactory conFactory;
         private QueueConnection qcon;
         private QueueSession qsession;
         private QueueSender qsender;
         private Queue queue;
         private TextMessage msg;

         /**
          * Creates all the necessary objects for sending
          * messages to a JMS queue.
          *
          * @param ctx JNDI initial context
          * @param queueName name of queue
          * @exception NamingException if operation cannot be performed
          * @exception JMSException if JMS fails to initialize due to internal error
          */
         public void init(Context ctx, String queueName)
            throws NamingException, JMSException
         {

            qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
            qcon = qconFactory.createQueueConnection();
            qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
            queue = (Queue) ctx.lookup(queueName);
            qsender = qsession.createSender(queue);
            msg = qsession.createTextMessage();
            qcon.start();
         }

         /**
          * Sends a message to a JMS queue.
          *
          * @param message  message to be sent
          * @exception JMSException if JMS fails to send message due to internal error
          */
         public void send(String message) throws JMSException {
            msg.setText(message);
            qsender.send(msg);
         }

         /**
          * Closes JMS objects.
          * @exception JMSException if JMS fails to close objects due to internal error
          */
         public void close() throws JMSException {
            qsender.close();
            qsession.close();
            qcon.close();
         }
        /** main() method.
         *
         * @param args WebLogic Server URL
         * @exception Exception if operation fails
         */
         public static void main(String[] args) throws Exception {
            if (args.length != 1) {
             System.out.println("Usage: java examples.jms.queue.QueueSend WebLogicURL");
             return;
            }
            InitialContext ic = getInitialContext(args[0]);
            emm qs = new emm();
            qs.init(ic, QUEUE);
            readAndSend(qs);
            qs.close();
         }

         private static void readAndSend(emm qs)
            throws IOException, JMSException
         {
            BufferedReader msgStream = new BufferedReader(new InputStreamReader(System.in));
            String line=null;
            boolean quitNow = false;
            do {
             System.out.print("Enter message (\"quit\" to quit): \n");
             line = msgStream.readLine();
             if (line != null && line.trim().length() != 0) {
               qs.send(line);
               System.out.println("JMS Message Sent: "+line+"\n");
               quitNow = line.equalsIgnoreCase("quit");
             }
            } while (! quitNow);

         }

         private static InitialContext getInitialContext(String url)
            throws NamingException
         {
            Hashtable env = new Hashtable();
            env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
            env.put(Context.PROVIDER_URL, url);
            return new InitialContext(env);
         }
        }

Answer 1

正如我提到的一些灵感代码（稍微改进了你的代码。这不是我想在生产中看到的！）

// Use the domain-agnostic API
private Connection connection;ery 
private Session session;
private MessageProducer producer;
private Queue queue;

public void init(Context ctx, String queueName) {

    try {
        ConnectionFactory cnf = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
        queue = (Queue) ctx.lookup(queueName);


        connection = cnf.createConnection("user", "user123");
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        producer = session.createProducer(queue);

        connection.start();
    } catch (NamingException e) {
        throw new RuntimeException(e);
    } catch (JMSException e) {
        throw new RuntimeException(e);
    }
}

这样发送（不要重复使用相同的消息对象，而是为发送的每条消息创建一个新的对象）

public void send(String message) throws JMSException {
    TextMessage msg = session.createTextMessage();
    msg.setText(message);
    producer.send(msg);
}

最后在你的主方法中围绕代码：

    try {
        readAndSend(qs);
    } finally {
        qs.close();
    }

你使用的代码不是很好（轻描淡写）。对于生产系统来说，它的编程过于脆弱。你不应该像这个程序那样使用状态。

此外，不需要使用特定于域的JMS API。您可以使用域（队列/主题）不可知的。

当您运行程序时，请输入TIBCO服务器的JNDI URL。

Answer 2

最后从不同的来源我找到了最好的可能的方式为这一点这个代码肯定会工作我已经尝试了这一点目前正在运行在我的机器上

import java.util.Properties;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueReceiver;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.*;

public class JMSExample {

    static String serverUrl = "tcp://10.101.111.101:10001"; // values changed
    static String userName = "user";
    static String password = "pwd";

     static QueueConnection connection;
     static QueueReceiver queueReceiver;
     static Queue queue;

    static TextMessage message;

    public static void sendTopicMessage(String topicName, String messageStr) {

        Connection connection = null;
        Session session = null;
        MessageProducer msgProducer = null;
        Destination destination = null;


        try {
            TextMessage msg;

            System.out.println("Publishing to destination '" + topicName
                    + "'\n");

            ConnectionFactory factory = new com.tibco.tibjms.TibjmsConnectionFactory(
                    serverUrl);

            connection = factory.createConnection(userName, password);


            session = connection.createSession(false, javax.jms.Session.AUTO_ACKNOWLEDGE);



            destination = session.createQueue(topicName);


            msgProducer = session.createProducer(null);



            msg = session.createTextMessage();

            msg.setStringProperty("SourceId", userName);
            msg.setStringProperty("BusinessEvent", password);


            msg.setText(messageStr);


            msgProducer.send(destination, msg);



            System.out.println("Published message: " + messageStr);


            connection.close();

        } catch (JMSException e) {
            e.printStackTrace();
        }
    }



    public static void main(String[] args) throws JMSException {
        // TODO Auto-generated method stub

        JMSExample.sendTopicMessage("***.***.***.**.**.Order.Management.***.1",
                "Hi");
        //System.out.println(getMessage());

    }