How do I redirect from a included servlet to another jsp page.
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Posted By:   Anonymous
Posted On:   Tuesday, August 13, 2002 08:18 AM

Hi all. I´m tring something like this. I have a a.jsp which has: The method register checks so there isn´t to many users allready. If there are to many users I want to redirect user to another page, b.jsp. So far I tried: 1: RequestDispatcher rd; rd = getServletContext().getRequestDispatcher( "b.jsp" ); rd.forward( req, res ); Error: java.lang.IllegalStateException: Cannot forward after response has been committed 2: res.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY); res.setHeader("Location", "b.jsp" ); Error: Browser shows a.jsp    More>>

Hi all.

I´m tring something like this.

I have a a.jsp which has:


The method register checks so there isn´t to many users allready. If there are to many users
I want to redirect user to another page, b.jsp. So far I tried:


1: 
			

			RequestDispatcher rd;
			

			rd = getServletContext().getRequestDispatcher( "b.jsp" );
			

			rd.forward( req, res );

Error: java.lang.IllegalStateException: Cannot forward after response has been committed



2: 
			

			res.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
			

			res.setHeader("Location", "b.jsp" );

Error: Browser shows a.jsp



3: 
			

			res.sendRedirect( res.encodeRedirectURL( "b.jsp" ) );
			

			return;

Error: Browser shows a.jsp



Nothing seems to work for me. Any suggestion how to solve this? Help is appreciated.

Regards Tobias    <<Less
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Re: How do I redirect from a included servlet to another jsp page.

Posted By:   Erik_Runia  
Posted On:   Tuesday, August 13, 2002 01:05 PM

for scenario #1 i may have an answer:



be sure you havent assigned a printwriter to your response object and printed anything to it, if you have it will no longer allow you to forward to a page because you have allready started writing the response manually.


Hope this helps,


Erik

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