response.sendRedirect() from Servlet to JSP does not seem to work

Question

I am writing a client server program. I am sending an arraylist from an android phone and I am able to receive the list also. After that I want the servlet to redirect to

Answer 1

Instead of using

response.sendRedirect("/demo.jsp");

Which does a permanent redirect to an absolute URL path,

Rather use RequestDispatcher. Example:

RequestDispatcher dispatcher = request.getRequestDispatcher("demo.jsp");
dispatcher.forward(request, response);