Untitled



import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class helloservlet
 */
@WebServlet("/helloservlet")
public class helloservlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    /**
     * Default constructor.
     */
    public helloservlet() {
        super();
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {


            PrintWriter out = response.getWriter();
            //Cookie cookie = null;
            Cookie[] cookies = null;
            cookies = request.getCookies();


            response.setContentType("text/html");


            out.println("<html>");
            out.println("<form name='loginForm' method='post' action='HelloServlet'>");

            if (cookies==null)
            {
            out.println("Username: <input type='text' name='username'><br />");
            out.println("Password: <input type='password' name='password'>");
            }
            else
            {

            String username = null;
            String password = null;

            for (int i = 0; i < cookies.length; i++) {
                Cookie cookie = cookies[i];

                if(cookie.getName().equals("Username")) {
                    username = cookie.getValue();
                }
                if (cookie.getName().equals("Password")) {

                    password = cookie.getValue();
                }
            }
            out.println("Username: <input type='text' value='" + username + "' name='username'/> <br/>");
            out.println("Password: <input type='password' value='" + password + "' name='password'/> <br/>");
            out.println(cookies);
            }
            out.println("<input type='submit' value='Login' />");
            out.println("</form>");
            out.println("</html>");

    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        PrintWriter out = response.getWriter();
        String un = request.getParameter("username");
        String pw = request.getParameter("password");
        Cookie uname = new Cookie("Username", un);
        Cookie pword = new Cookie("Password", pw);

        uname.setMaxAge(60*60*24);
        pword.setMaxAge(60*60*24);

        response.addCookie(uname);
        response.addCookie(pword);


    }

}