Question

In my web application , I get a request from the client. I process the request in my jsp page or the servlet(which ever is called) and want to forward to other jsp’s or servlets accordingly.

But before forwarding I want to set a few parameters and then forward it with these new parameters. The old parameters should not be present when forwarding. Only the new parameters should be present. How can this be done?
Can I forward from a servlet to jsp and vice-versa?
Please tell how the above can be accomplished?

Answer 1

You can use request dispatcher and redirect as per your need and requirement.

ServletContext sc = getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher("url");

rd.forward(request,response);

or

response.sendRedirect("url");

sendRedirect() sends the header back to the browser , which contains the name of the resource to be redirected to. So this will be a new request to the resource from the browser .

forward() action takes place within the server without the knowledge of the browser .