-none- 2007-10-04 - By Mark Thomas
Back
lightbulb432 wrote:
> I have a question about whether there is a race condition with the following
> technique for displaying messages across redirects.
Yes there is.
> If you submit a form with an invalid value on page P1 and the receiving
> servlet S redirects to another page P2, you'd like page P2 to contain a
> message saying "You entered an invalid value". You can only put the value in
> the session (not the request, because it's a redirect, not a forward), with
> session.setAttribute("message","You entered an invalid value").
Why not pass the information to P2 using a request parameter on the
redirect?
Mark
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