Hi,
I tried doing it with the following setup:
Weblogic Server 5.1 with Service Pack 5 on Windoes 200
Professional.
The moment I try to create InitialContext in a Java
bean, the Server returns Error no 500 to the browser.
There is no exception raised at the Weblogic Server at
all.
I have been forced to write a lot of code in the JSP
pages itself.
If someone knows the reason, please let me know.
Thanks and Regards
Anoop Sehdev
--- Pavan Venkata Tirunagari
<[EMAIL PROTECTED]> wrote:
> The following is a code snippet that demonstrates
> how a JSP page can
> interact with an EJB session bean:
> <%@ page import="javax.naming.*,
> javax.rmi.PortableRemoteObject,
> foo.AccountHome, foo.Account" %>
> <%!
> //declare a "global" reference to an instance of
> the home interface of the
> session bean
> AccountHome accHome=null;
>
> public void jspInit() {
> //obtain an instance of the home interface
> InitialContext cntxt = new InitialContext( );
> Object ref=
> cntxt.lookup("java:comp/env/ejb/AccountEJB");
> accHome =
>
(AccountHome)PortableRemoteObject.narrow(ref,AccountHome.class);
> }
> %>
> <%
> //instantiate the session bean
> Account acct = accHome.create();
> //invoke the remote methods
> acct.doWhatever(...);
> // etc etc...
> %>
>
>
> What is the most efficient approach for integrating
> EJB with JSP? Should the
> EJBs be invoked directly from within JSP scriptlets?
> Should the access take
> place from within Java beans? Or is it best to use
> custom tags for this
> purpose?
>
> 1) JSP scriptlet code should be minimal. Invoking
> EJB code directly on a JSP
> page results in many lines of code on your JSP page,
> including try...catch
> blocks to catch naming and finding exceptions.
>
> 2) Using a standard JavaBean as an intermediary
> between the JSP page and EJB
> server cuts down on the amount of code needed to add
> to a JSP page, and
> promotes reuse. The JavaBean should be a simple
> wrapper around the EJB you
> are accessing.
> If you use a standard JavaBean you could also use
> the jsp:useBean tag to
> setup EJB parameters, such as the server URL and
> server security parameters.
>
> 3)Custom tags are also an option. However, they
> require a lot more coding
> than a simple JavaBean wrapper. The point should be
> to rewrite as little
> code as possible while at the same time keeping the
> JSP scriptlet content as
> light as possible
>
>
> ----- Original Message -----
> From: "EJB Vikas" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Sunday, January 14, 2001 10:51 PM
> Subject: EJB from JSP
>
>
> > Hi!
> >
> > I am using Weblogic to run my JSP, I want to
> access the EJB deployed in
> > weblogic from my JSP. How can I do that???
> > Any Links!!!!
> > Any codes!!!!!
> > TIA
> > Bye!
> >
> >
>
_________________________________________________________________
> > Get your FREE download of MSN Explorer at
> http://explorer.msn.com
> >
> >
>
===========================================================================
> > To unsubscribe, send email to
> [EMAIL PROTECTED] and include in the
> body
> > of the message "signoff EJB-INTEREST". For
> general help, send email to
> > [EMAIL PROTECTED] and include in the body of
> the message "help".
> >
> >
>
>
===========================================================================
> To unsubscribe, send email to [EMAIL PROTECTED]
> and include in the body
> of the message "signoff EJB-INTEREST". For general
> help, send email to
> [EMAIL PROTECTED] and include in the body of the
> message "help".
>
__________________________________________________
Do You Yahoo!?
Yahoo! Auctions - Buy the things you want at great prices.
http://auctions.yahoo.com/
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff EJB-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
