Re: (Newbee)Websphere 5.0 Local Lookup

Hi,
 
    For accessing java:comp namespace in your web module you should add
a resource referece to your ejb in your web.xml.
Here's a sample.
 
 <ejb-ref id="EjbRef_1083562973290">
  <ejb-ref-name>FirstStatelessBeanAlias</ejb-ref-name>
  <ejb-ref-type>Session</ejb-ref-type>
  <home>raj.ejb.session.stateless.FirstHome</home>
  <remote>raj.ejb.session.stateless.First</remote>
  <ejb-link>TestEjb.jar#First</ejb-link>
 </ejb-ref>
 
While doing a lookup you should use the resource reference name instread
of the global jndi name.
 
localHome=(FirstLocalHome)ctx.lookup("java:comp/env/FirstStatelessBeanAl
ias");
 
Thanks,
Kiran.
 
 
 

  _____  

From: A mailing list for Enterprise JavaBeans development
[mailto:[email protected]] On Behalf Of Raj
Sent: Sunday, May 02, 2004 11:41 PM
To: [email protected]
Subject: (Newbee)Websphere 5.0 Local Lookup



Hi,
I am a newbee to EJB programming and I am trying to develop my first ejb
on WSAD5.0, I just programmed a session bean which returns a simple
String through a getMessage method.
I am trying to lookup this EJB through a jsp page and I am getting a
NameNotFoundException.
I searched several forums including this one and tried to implement
according to the recommendations given here. But the problem still
persists. My code goes as follows.

ejb-jar.xml (generated by WSAD)
-------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise
JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar id="ejb-jar_ID">
   <display-name>rajEjb</display-name>
   <enterprise-beans>
      <session id="FirstBean">
<ejb-name>FirstBean</ejb-name>
<local-home>raj.ejb.session.stateless.FirstLocalHome</local-home>
          <local>raj.ejb.session.stateless.First</local>
<ejb-class>raj.ejb.session.stateless.FirstBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
      </session>
   </enterprise-beans>
</ejb-jar>

ibm-ejb-bnd-jar.xmi(also generated by WSAD)
---------------------
<?xml version="1.0" encoding="UTF-8"?>
<ejbbnd:EJBJarBinding xmi:version="2.0"
xmlns:xmi="http://www.omg.org/XMI" xmlns:ejbbnd="ejbbnd.xmi"
xmlns:ejb="ejb.xmi" xmi:id="EJBJarBinding_1083440172703">
  <ejbJar href="META-INF/ejb-jar.xml#ejb-jar_ID"/>
  <ejbBindings xmi:id="EnterpriseBeanBinding_1083440172703"
jndiName="FirstStatelessBean">
    <enterpriseBean xmi:type="ejb:Session"
href="META-INF/ejb-jar.xml#FirstBean"/>
  </ejbBindings>
</ejbbnd:EJBJarBinding>

index.jsp (where lookup is made)
-----------------------------------
<%! private Context ctx = null;
    private FirstLocalHome localHome;
%>
<%
try{
ctx = new InitialContext();
localHome=(FirstLocalHome)ctx.lookup("java:comp/env/FirstStatelessBean")
;
}catch(NamingException eNE){
System.out.println("Naming Exception");
eNE.printStackTrace(); } 
%>

and the following exception is thrown when JSP page is called.
O Naming Exception
[5/2/04 13:38:21:163 EDT] 42bb80ab SystemErr R
javax.naming.NameNotFoundException: Name "comp/env/FirstStatelessBean"
not found in context "java:".
[5/2/04 13:38:21:163 EDT] 42bb80ab SystemErr R at
com.ibm.ws.naming.ipbase.NameSpace.lookup(NameSpace.java:1003)
[5/2/04 13:38:21:163 EDT] 42bb80ab SystemErr R at
com.ibm.ws.naming.urlbase.UrlContext.lookup(UrlContext.java:1211)
[5/2/04 13:38:21:163 EDT] 42bb80ab SystemErr R at
com.ibm.ws.naming.urlbase.UrlContext.lookup(UrlContext.java:1203)
[5/2/04 13:38:21:163 EDT] 42bb80ab SystemErr R ...................

Can anyone of you tell me how to lookup the EJB and solve my problem.
It would be a great help for me.
thanks in advance.
Raj. 

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