How to set Context.INITIAL_CONTEXT_FACTORY? NoInitialContextException?

问题

I am new to JMS and the Websphere server and I am trying to access a JMS queue configured on Websphere Application Server 8 from my Java code. I am not able to understand exactly what value should be set for Context.INITIAL_CONTEXT_FACTORY. Should it be the fully qualified class name of the class or something specific to the application server?

Hashtable environment = new Hashtable();
        environment.put(Context.INITIAL_CONTEXT_FACTORY, "com.ibm.websphere.naming.WsnInitialContextFactory");
        environment.put(Context.PROVIDER_URL, "iiop://localhost:9081");

On setting value for Context.INITIAL_CONTEXT_FACTORY as fully qualified class name i.e com.ms.test.Demo I am receiving NoInitialContextException.

PFB the code that I am using -

package com.jms.test;

import java.util.Hashtable;
import javax.jms.Queue;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

public class Demo {
  public static void main(String[] args) throws NamingException {
        System.out.println("Start.....");
        Hashtable environment = new Hashtable();
        environment.put(Context.INITIAL_CONTEXT_FACTORY, "com.jms.test.Demo");
        environment.put(Context.PROVIDER_URL, "iiop://localhost:9081");
       //String pUrl = System.getProperty(Context.PROVIDER_URL);
        //System.out.println("*******"+pUrl+"********");
        InitialContext ctx = new InitialContext(environment);
        Queue queue = (Queue) ctx.lookup("jms/TestQ111200");
        System.out.println("*** Queue is *** "+queue.toString());
  }}

I have made JMS configurations in the Websphere Application Server using the steps given at the link below: http://pic.dhe.ibm.com/infocenter/iisinfsv/v8r1/index.jsp?topic=/com.ibm.swg.im.iis.infoservdir.user.doc/topics/t_isd_user_setting_up_jms_in_was.html

回答1:

You always use the following, when connecting to WebSphere, not your own class.

environment.put(Context.INITIAL_CONTEXT_FACTORY, "com.ibm.websphere.naming.WsnInitialContextFactory");

It is required to correctly connect to WAS. For the second property you need to provide bootstrap port not http. Usually it is 2809, look for the following message in SystemOut.log:

00000001 NameServerImp A   NMSV0018I: Name server available on bootstrap port 2809.

You will also need specific jars for your client to connect to WAS JMS. See Installing and configuring the Thin Client for JMS with WebSphere Application Server

来源：https://stackoverflow.com/questions/26892729/how-to-set-context-initial-context-factory-noinitialcontextexception