Rupesh Choubey wrote:
>
>
> Could anyone help with the following issues:
>
> ** How do I call a servlet FROM a JSP? something like <!
> RequestDispatcher.forward ??????????
>
> ** How do I call a servlet FROM another servlet? (i know its got to do
> with the RequestDispatcher...but i couldnt make it work....could
> someone send me code snippets)
>
> thanks in advance,
> rupesh.
Assume you have two servlets, mapped to "/servletA" and "/servletB".
In a JSP page, you can include the output from a servlet like this:
<jsp:include page="/servletA" />
or forward to that servlet (thus ignoring the page you are going from)
like this:
<jsp:forward page="/servletA" />
If you are in servlet A and you want to call servlet B, you'd do one of
the following (depending on whether you wanted to include or forward):
RequestDispatcher rd =
getServletContext.getRequestDispatcher("/servletB");
rd.include(request, response);
RequestDispatcher rd =
getServletContext.getRequestDispatcher("/servletB");
rd.forward(request, response);
return;
The most important thing to get right is the path -- it needs to start
with a slash, and is interpreted as relative to the root of the web
application you are currently running in.
Craig McClanahan
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