Solved

Using MQEnvironment class in a java program that is using MQ Series jar files

Posted on 2009-04-07
3
4,755 Views
Last Modified: 2012-05-06
I am new to working with MQ Series programming. I need to hava java program put a message on an mq series queue and then retrieve the answer off of another queue.  To set up parameters for the qManager connection I need to set values in a class named MQEnvironment. The syntax is:

MQEnvironment.channel = "whatever";

When I do this I get a "NoClassDefFoundError /javaa/resource/ResourceExeption" thown by MQEnvironment.java


import com.ibm.mq.*;
 
 
public class testMQ {
	
	// settings for sean kendall's pc local MQ Series tests:
	String requestQManager = "";
	String requestQueueName = "";
 
	String replyQManager = "";
	String replyQueueName = "";
 
 
	
	public static void main(String args[]) {
		new testMQ();
	}
 
	
	public testMQ() {
		try {
			// The Using Java with MQ Series pdf states that channel must be set to
			// the channel name (String) and port to the port number (int) the MQ Series
			// server is listening on
			
			// settings for sean kendall's pc local MQ Series tests:
			//requestQManager = "QM_SKENDALL";
			//requestQueueName = "SYSTEM.DEFAULT.LOCAL.QUEUE";
			//MQEnvironment.hostname = "localhost";
			
 
			// settings for THome's MQ environment:
			String requestQManager = "I2MMA1";
			MQEnvironment.channel = "CLIENT_CMP";
			MQEnvironment.port = 1420;
			MQEnvironment.hostname = "Q4DE8PSAE24.blf.telekom.de";
			requestQueueName = "ESB_CRMT_BLT_REQRESERVATIONSTAT.REQ.IN";
			replyQueueName = "POC_REQRESERVATIONSTAT.REPLY.OUT";
	
	
			//IMPORTANT: all the settings above must be completed befor declaring a new MQQueueManager
	
			//declare qManagers
			MQQueueManager requestQMgr; 
			MQQueueManager replyQMgr; 
			
			
			// Create a connection to the queue managers
			requestQMgr = new MQQueueManager(requestQManager);
			replyQMgr = new MQQueueManager(replyQManager);
			
			// Set up the options on the queue we wish to open...
			// Note. All MQSeries Options are prefixed with MQC in Java.
			int openOptions = MQC.MQOO_INPUT_AS_Q_DEF | MQC.MQOO_OUTPUT ;
			
			// Now specifythe queue that we wish to open,
			// and the open options...
			//MQQueue system_default_local_queue = requestQMgr.accessQueue(requestQueueName, openOptions);
			MQQueue requestQueue = requestQMgr.accessQueue(requestQueueName, openOptions);
			MQQueue replyQueue = replyQMgr.accessQueue(replyQueueName, openOptions);
			
			// Define a simple MQSeries message, and write some text in UTF format..
			//MQMessage hello_world = new MQMessage();
			MQMessage requestMsg = new MQMessage();
			MQMessage replyMsg = new MQMessage();
			
			//hello_world.writeUTF("Hello World!");
			requestMsg.writeUTF("Give Me Something Back");
			
			// specifythe message options...
			MQPutMessageOptions pmo = new MQPutMessageOptions(); // accept the defaults, same as MQPMO_DEFAULT
 
			// put the message on the queue
			//system_default_local_queue.put(hello_world,pmo);
			requestQueue.put(requestMsg,pmo);
			
			
			// Set the get message options...
			MQGetMessageOptions gmo = new MQGetMessageOptions(); // accept the defaults
			// same as MQGMO_DEFAULT
			// get the message off the queue...
			//system_default_local_queue.get(retrievedMessage, gmo);
			replyQueue.get(replyMsg, gmo);
			
			
			// And prove we have the message bydisplay ing the UTF message text
			String msgText = replyMsg.readUTF();
			System.out.println("The message is: " + msgText);
			// Close the queue...
			//system_default_local_queue.close();
			requestQueue.close();
			replyQueue.close();
			
			// Disconnect from the queue manager
			requestQMgr.disconnect();
			replyQMgr.disconnect();
			
			
		} catch (Exception e) {
			System.out.println("An exception occurred: " + e.toString());
		}
		
		/*
			// If an error has occurred in the above, tryto identifywhat went wrong
			// Was it an MQSeries error?
			catch (MQException ex) {
				System.out.println("An MQSeries error occurred : Completion code " +
				ex.completionCode + " Reason code " + ex.reasonCode);
			}
			// Was it a Java buffer space error?
			catch (java.io.IOException ex) {
				System.out.println("An error occurred whilst writing to the message buffer: " + ex);
			}
		*/
		} // testMQ constructor
} // end of sample

Open in new window

0
Comment
Question by:skendall66
  • 2
3 Comments
 
LVL 12

Accepted Solution

by:
Gibu George earned 250 total points
ID: 24089334
You need to find the jca.jar and add that to your classpath
0
 
LVL 12

Expert Comment

by:Gibu George
ID: 24089389
I am not sure it is there in jca.jar, the ResourceException is a part of JavaConnector API so I assumed it will be in that.
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

For customizing the look of your lightweight component and making it look opaque like it was made of plastic.  This tip assumes your component to be of rectangular shape and completely opaque.   (CODE)
Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question