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

Since you already have sent some data,

System.out.println("going to demo.jsp");

you won't be able to send a redirect.

Answer 2

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);

Answer 3

I'm posting this answer because the one with the most votes led me astray. To redirect from a servlet, you simply do this:

response.sendRedirect("simpleList.do")

In this particular question, I think @M-D is correctly explaining why the asker is having his problem, but since this is the first result on google when you search for "Redirect from Servlet" I think it's important to have an answer that helps most people, not just the original asker.

Answer 4

You can use this:

response.sendRedirect(String.format("%s%s", request.getContextPath(), "/views/equipment/createEquipment.jsp"));

The last part is your path in your web-app