Login.java

package controller;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import model.User;

@WebServlet(name = "Login", urlPatterns = {"/Login"})
public class Login extends HttpServlet {

    public Login() {
        super();
    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String uname = request.getParameter("username");
        String upass = request.getParameter("password");

        User userBean = new User(uname, upass);
        System.out.println(userBean.getUserpass());
        System.out.println(userBean.getUsername());
        if (userBean.isValid(userBean.getUsername(), userBean.getUserpass())) {
            HttpSession session = request.getSession(true);
            session.setAttribute("username", userBean.getUsername());
            response.sendRedirect("package.jsp");
        } else {
            response.sendRedirect("login.jsp");
        }
    }

    @Override
    public String getServletInfo() {
        return "Short description";
    }

}