Use of request.getRequestDispatcher with example

Use of request.getRequestDispatcher 

It is interface. It provides the facility of dispatching the request to another resource it may be html, servlet or jsp.

## Example This example is for you how to use it.

import java.io.*;  
import javax.servlet.*;  
import javax.servlet.http.*;    
public class register extends HttpServlet {  
  
public void doPost(HttpServletRequest request, HttpServletResponse response)  
        throws ServletException, IOException {  
  
    response.setContentType("text/html");  
    PrintWriter out = response.getWriter();  
          
    String n=request.getParameter("userName");  
    String p=request.getParameter("userPass");  
          
    if(p.equals("servlet"){  
        RequestDispatcher rd=request.getRequestDispatcher("servlet2");  
        rd.forward(request, response);  
// here servlet2 is get Dispatcher.
    }  
    else{  
        out.print("Unsucessful!");  
        RequestDispatcher rd=request.getRequestDispatcher("/index.html");  
        rd.include(request, response);  

  }
    }
}