Servlet Java Tutorial

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
public class MyServlet extends HttpServlet {
   
 public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException {
        
       //redirect the user depending on the value of the 'go' param
        String destination = getInitParameter("go");
        String contextPath = request.getContextPath();
        
         if(destination == null || destination.equals(""))
            throw new ServletException(
             "Missing or invalid 'go' parameter in " +
               getClass().getName());
        
        if(destination.equals("weather"))
        //ensure URL rewriting
            response.sendRedirect(response.encodeRedirectURL(contextPath + "/weather") );
        
         if(destination.equals("maps"))
        //ensure URL rewriting
            response.sendRedirect(response.encodeRedirectURL(contextPath + "/maps") );
    }
}


    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
    "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">

    MyServletName
             MyServlet
        
            
                go
            

            
                weather
            

        

             
    

    
    MyServletName
        /index.html