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From "John Trollinger" <jaka...@trollingers.com>
Subject RE: RequestDispatcher.forward() problem
Date Fri, 21 Feb 2003 15:26:54 GMT
There is a single sign on in tomcat, but I have never used it.  You
might want to ask about it in the user mailing list
tomcat-user@jakarta.apache.org or better yet read the archives and see
if this question has already been answered there.

John

> -----Original Message-----
> From: Simon Senécal [mailto:ssenecal@labvolt.ca] 
> Sent: Friday, February 21, 2003 10:12 AM
> To: Tomcat Developers List
> Subject: RequestDispatcher.forward() problem
> 
> 
> Thanks for your reply, John.
> 
> Can you transport data from one webapp to the other when you use the 
> sendRedirect() method? Here is my true problem. I want to 
> transport data 
> such as a username and a password between two webapps (and I 
> don't want to 
> use URL rewriting). The user logs on Webapp1 and after 
> authentification, 
> the user has the choice to go to Webapp2, and I need the username and 
> password to work in Webapp2. As I understand it, I can't use 
> the session 
> object to transport data because each Webapp has it's own 
> session object. 
> So I thought of using the forwarding method and use the 
> request object to 
> store my data (with setAttribute and getAttribute). It works, 
> but like I 
> said in my previous email, after forwarding, I'm still in the 
> context of 
> Webapp1.
> 
> Simon.
> 
> At 09:51 2003-02-21 -0500, you wrote:
> >I am not sure if this helps, but a forward happens at the 
> server so the 
> >server makes the forwarded request and returns the results to the 
> >browser, so the browser never knows the request has changed and 
> >therefor the URL in the browser will not change, on the other hand a 
> >redirect tells the browser to go get the new page so the browser URL 
> >will update to the new URL.
> >
> >John
> >
> > > -----Original Message----->
> > >
> > > I need help. (I use Tomcat 4.1.18)
> > >
> > > I'm in JSP1 in a webapp (Webapp1) and I use 
> > > RequestDispatcher.forward(request, response) to forward in JSP2 
> > > located in another webapp (Webapp2). The two webapps are 
> on the same 
> > > server. The forwarding works, but once I'm in the JSP2 
> (in Webapp2), 
> > > it looks like I'm
> > > still in the context of Webapp1, the URL of the request
> > > remains the URL of
> > > JSP1 in Webapp1. However, the servlet API documentation
> > > specifically says:
> > >
> > > "For a RequestDispatcher obtained via getRequestDispatcher(), the 
> > > ServletRequest object has its path elements and 
> parameters adjusted 
> > > to match the path of the target resource".
> > >
> > > Here is a simplified part of the code I use in JSP1:
> > >
> > > ServletContext contxt = 
> getServletContext().getContext("/Webapp2");
> > > RequestDispatcher disp = 
> > > contxt.getRequestDispatcher("/JSPinWebapp2.jsp");
> > > disp.forward(request, response);
> > >
> > > Is this a bug, or is there something that I'm missing or not 
> > > understanding about forwarding?
> > >
> > >
> > > Simon Senécal
> > > Lab-Volt Québec (Software Development)
> > > 418-849-1000 #348
> > > http://www.labvolt.com
> 
> 
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