RequestDispatcher

include () method

• Includes the content of a resource (servlet, JSP page, or HTML file) in the response.

forward() method

• Forwards a request from a servlet to another resource (servlet, JSP file, or HTML file) on the server.

• The forward() method works at server side.

• It sends the same request and response objects to another servlet.

• It can work within the server only.

• Ex: request.getRequestDispacher("servlet2").forward(request,response);

sendRedirect() method

• The sendRedirect() method works at client side.

• It always sends a new request.

• It can be used within and outside the server.

• Ex: response.sendRedirect("servlet2");