Servlet Java Tutorial

import java.util.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.security.*;
public class MyServlet extends HttpServlet {
   
    public void init(ServletConfig cfg) throws ServletException 
    {
        super.init(cfg);
    } 
    public void doGet(HttpServletRequest request, HttpServletResponse response) 
        throws IOException, ServletException 
    {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        out.println("");
        out.println("");
        out.println("");<br/>        out.println("User Authentication");<br/>        out.println("");
        out.println("");
        out.println("");
        out.println("

User Authentication

");
        String type = request.getAuthType();
        out.println("Welcome to this secure page.
");
        out.println("Authentication mechanism: " + type + "
");
        Principal principal = request.getUserPrincipal();
        out.println("Your username is: " + principal.getName() + "
");
        out.println("");
        out.println("");
    } 
}


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

    MyServletName
             MyServlet
             
    

    
    MyServletName
        /index.html