JSP servlet mapping

With introduction of Servlet 3.0 we could map servlets to URL patterns using annotations and ommiting mapping within web.xml.

I wonder if there some intstructions or special tags allowing mapping jsp to URL in page code without declaring servlets in web.xml

Solution

There's no facility like that.

Best what you could do is to hide the JSP in /WEB-INF (so that it can never be requested directly by URL) and just create a servlet which forwards to that JSP and finally map it on the desired URL pattern. It's fairly easy:

@WebServlet("/foo")
public class FooServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.getRequestDispatcher("/WEB-INF/foo.jsp").forward(request, response);
    }

}

This way the JSP in /WEB-INF/foo.jsp is available by http://localhost:8080/context/foo. You could abstract it further to a single servlet for a bunch of JSPs using the front controller pattern.