Change protocol when redirecting a request for a servlet to jsp

Question

Hello,
In my servlet, There is a line of code:
getServletConfig().getServletContext().getRequestDispatcher("/page.jsp").forward(request,response);
My question is: I'd like to change the current protocol (like http) to new protocol (like https) or versa vista before my servlet executes the above line.
Is this possible to implement that? If so, how can I do it?
If not implement, Is there any ways to convert back or forward between http and https protocols in java, servlet or jsp?
I did try to use window.location.href="protocol://myserver/..." in javascript to redirect the jsp page to the right protocol, but the session for the browser was lost, and the jsp page ran into infinite loop.
Thanks in advance for any helps.
Mike.

Answer 1

if (!request.isSecure()) response.sendRedirect("https://me.com/page.jsp");
(or visa versa)