Thanks genman..
The type of the Object is org.jboss.mq.SpyQueue. But I dont need to use
SpyQueue or SpyConnectionFactory. I prefer to use QueueConnectionFactory and
Queue Connection in my program. But When do a JNDI lookup like
SpyConnectionFactory factory = (SpyConnectionFactory)
ctx.lookup("ConnectionFactory");
It returs Object of SpyConnectionFactory. What should I do in my Application
Server Settings to return QueueConnectionFactory. Also please let me know the
JNDI name for it.
My full Program Code is (Which Throws Exception)
package com.echain.contacts.web.action;
import java.io.PrintWriter;
import javax.jms.QueueConnection;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.TextMessage;
import javax.naming.InitialContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.jboss.mq.SpyConnectionFactory;
import org.jboss.mq.SpyQueue;
public class ServerAction extends Action {
QueueConnection qCon;
QueueSession qSess;
SpyQueue queue;
QueueSender qSender;
PrintWriter pw;
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest req, HttpServletResponse res) throws Exception {
try {
pw = res.getWriter();
System.out.println("\n\n*********** Creating Queue
***********\n\n");
pw.println("*********** Creating Queue ***********");
createQueue();
System.out.println("\n\n*********** Created Queue
***********\n\n");
pw.println("*********** Created Queue ***********");
System.out.println("\n\n*********** Sending Message to Queue
***********\n\n");
pw.println("*********** Sending Message to Queue ***********");
sendMessageToQueue("THis is the Message");
System.out.println("\n\n*********** Message Sent to Queue
***********\n\n");
pw.println("*********** Message Sent to Queue ***********");
} catch (Exception e) {
e.printStackTrace();
}
return mapping.findForward("forward.success");
}
public void createQueue() throws Exception{
InitialContext ctx = new InitialContext();
System.out.println("\n\nFactory is : " +
ctx.lookup("ConnectionFactory") + "\n\n");
SpyConnectionFactory factory = (SpyConnectionFactory)
ctx.lookup("ConnectionFactory");
qCon = factory.createQueueConnection();
ctx = new InitialContext();
Object o = ctx.lookup("queue/echnQueue");
System.out.println("\n\nQueue is : " + o.getClass() + "\n\n");
queue = (SpyQueue) ctx.lookup("queue/echnQueue");
qSess = qCon.createQueueSession(false,
QueueSession.AUTO_ACKNOWLEDGE);
qCon.start();
}
public void sendMessageToQueue(String message) throws Exception{
qSender = qSess.createSender(queue);
TextMessage tm = qSess.createTextMessage(message);
qSender.send(tm);
qSender.close();
System.out.println("\n\n\n\n*****************\n\nMessage Send
to Queue And QSender is Closed\n\n************\n\n\n");
pw.println("***************** Message Send to Queue And QSender
is Closed ************");
}
}
In the above marked redline I am getting an exception
java.lang.LinkageError: Class javax/jms/QueueConnection violates loader
constraints
Please help me out
Regards,
Dharma
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