How to create EJB client without WL specific classes ?

Question

Hi,
I have stateful session EJB running in WebLogic 5.1.
Is it necessary to client that will access that EJB to have WebLogic classes in classpath ?
Is it possible to write client that doesn't have any classes specific to Weblogic ?
Uix

Answer 1

Sure, if it's acceptable for your application to classload from WebLogic.
For example: helper class to start WebLogic client (server is running on
localhost:7001 and client classes are in c:/weblogic/myserver/clientclasses/):
c:\WebLogicClient>set CLASSPATH=.
c:\WebLogicClient>java WebLogicClient examples.ejb.basic.statelessSession.Client
import java.net.*;
import java.lang.reflect.*;
public class WebLogicClient {
/* client classpath. Should NOT be in the java classpath! */
public static final String CLIENT_CLASSES =
     "file://C:/weblogic/myserver/clientclasses/";
/* WebLogic server to classload from */
public static final String WL_CLASSES =
     "http://localhost:7001/classes/";
public static void main(String[] args) {
try {
ClassLoader cl = new URLClassLoader(new URL[] {
new URL(CLIENT_CLASSES),
new URL(WL_CLASSES)
Thread.currentThread().setContextClassLoader(cl);
Class clientClass = cl.loadClass(args[0]);
Method methodMain = clientClass.getMethod("main",
          new Class[] {Class.forName("[Ljava.lang.String;")});
String[] clientArgs = new String[args.length - 1];
System.arraycopy(args, 1, clientArgs, 0, clientArgs.length);
methodMain.invoke(null, new Object[] {clientArgs});
} catch(Throwable oops) {
oops.printStackTrace();
uix <[email protected]> wrote:
Hi,
I have stateful session EJB running in WebLogic 5.1.
Is it necessary to client that will access that EJB to have WebLogic classes in classpath ?
Is it possible to write client that doesn't have any classes specific to Weblogic ?
Uix--
Dimitri