RE: newbiew Q: how to do redirect instead of forward

[Jimmy Emmanual]

When you redirect, the RequestDispatcher tells the browser to request
another URL. When this happens there is always a round trip to the client
side and the previous Request and Response objects are lost. Also, redirect
allows you to request a resource outside the current application.

In a forward, the request is done w/o the help of the client browser. Also,
the Request and Response objects are kept.

Jimmy

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 05, 2003 4:37 PM
To: Struts Users Mailing List
Subject: Re: newbiew Q: how to do redirect instead of forward




This is probably a silly question, but what's the difference between
forward and redirect?


Thanx,
Ian

Ian D. Stewart
Open Systems Engineer II
Enterprise Midrange - Bank One Infrastructure & Operations
[EMAIL PROTECTED]
(614) 213-6100




"Zhu He" <[EMAIL PROTECTED]> on 06/05/2003 04:16:07 PM

Please respond to "Struts Users Mailing List"
      <[EMAIL PROTECTED]>

To:   <[EMAIL PROTECTED]>
cc:

Subject:  newbiew Q: how to do redirect instead of forward



for forward we usually do
execute() {
    ...
    return mapping.findForward("listing");
}

I tried to use redirect by
execute() {
      ActionForward af = mapping.findForward("listing");
      af.setRedirect(true);
      return af;
}

but get exception
javax.servlet.ServletException: Configuration is frozen
     at
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.
java:541)

     at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProces
sor.java:482)

     at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)

     at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1420)








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