There is no difference .........Cannot really think of
a problem.........
Have u typed the action="Servlet" properly...????
Moreover i suggest u to change the name of the
servlet....
--- "Jonathan Silvergran, SM3OJR" <[EMAIL PROTECTED]>
wrote:
> Greetings,
>
> Please take a look at the following "skeleton code":
>
> public void doGet(HttpServletRequest request,
> HttpServletResponse response)
> throws ServletException, IOException {
>
> doPost(request, response);
>
> } // end doGet
>
> public void doPost(HttpServletRequest request,
> HttpServletResponse response)
> throws ServletException, IOException {
>
>
> String requestedPage =
> request.getParameter("id");
>
> if (requestedPage.equalsIgnoreCase("welcome")) {
>
> ( puts up a HTML form with two text fields and
> two buttons (SUBMIT / RESET)
> with the form action set to Servlet?id=login
> )
> }
>
> if (requestedPage.equalsIgnoreCase("login")) {
>
> ( Performs some login authentication stuff and
> presents the result to the user )
> }
>
> } // end doGet
>
>
> Okay, so what's my problem then? Well, when I type
> http://localhost:8080/Servlet?id=welcome
> or
> http://localhost:8080/Servlet?id=login
> it works like a charm.
>
> However, if I press the SUBMIT button, the form
> loads
> "Servlet?id=login" for sure, but then I get a 500
> error
> from the server with a "reported exception:
> java.lang.NullPointerException."
>
> What's the difference between loading the page
> "manually" from the browser compared to the same
> page
> being loaded from a form action? I suppose that one
> difference is of course that in the latter case, the
> parameters from the form gets sent along with the
> request, but what's the cause of the exception?
>
> Any hints appreciated... Thanks!
>
> /Jon
>
>
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