Hi,
I'm setting my first steps with EJB (using the JBoss Application Server) in
Eclipse.
Building a web-based application doesn't give any problems (there are plenty of
good tutorials available) but making an (standalone) Application Client for my
Beans gives a problem. Strangely enough not many tutorials handle that
subject...
The problem is I don't know how to do a Bean lookup from my Java Application.
RandomBean just generates a random number.
Here is some code I found, though this gives an error (see below):
| package randomclient;
|
| import javax.naming.Context;
| import javax.naming.InitialContext;
| import javax.rmi.PortableRemoteObject;
| import random.RandomRemote;
| import random.RandomRemoteHome;
|
| public class RandomClient
| {
| public static void main(String[] args) throws Exception
| {
| Context initial = new InitialContext();
| Context env=(Context)initial.lookup("java:comp/env");
| Object obj=env.lookup("ejb/RandomBean");
| RandomRemoteHome home=(RandomRemoteHome)
| PortableRemoteObject.narrow(obj,RandomRemoteHome.class);
| RandomRemote b=home.create();
| System.out.println(b.random());
| }
| }
|
This is the error I'm getting:
Exception in thread "main" javax.naming.NoInitialContextException: Need to
specify class name in environment or system property, or as an applet
parameter, or in an application resource file: java.naming.factory.initial
| at
javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:645)
| at
javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
| at
javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:284)
| at javax.naming.InitialContext.lookup(InitialContext.java:351)
| at Main.main(Main.java:15)
|
It has to do with the Lookup() function (probably wrong values there) but I
have absolutely no idea what to fill in there.
Does someone have an idea please?
Thanks a lot in advance!
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