Can I flip the HTTP Method from GET to POST in some form of JSP redirect?

I've got a JSP redirecting to a URL backed by a servlet just fine - for example, with

<jsp:forward page="/my开发者_C百科servlet"/> 

but I'd like to switch the method from the incoming GET to a POST against the servlet URL.

How can I do that?

You can't. The incoming request has to be a POST as well. Just execute the desired job in the doGet() method.

Please note that <jsp:forward> doesn't do a redirect. A redirect is basically a 3nn response with a Location header pointing to the new URL on which the browser has to invoke a new GET request (which get reflected in browser address bar as well). The response.sendRedirect() does that with a 302 response. A forward takes place fully internally in the server side, without changing the request URL.