@WebServlet("/loginServlet")
public class LoginServlet extends HttpServlet {
    private UserService userService = new UserServiceImpl();

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

        if (remember != null && "remember-me".equals(remember)) {

            Cookie cookie_username = new Cookie("username", username);
            Cookie cookie_password = new Cookie("password", password);
            response.addCookie(cookie_username);
            response.addCookie(cookie_password);
        }



        User user_login = userService.findUser(username, password);

        if (user_login != null && !user_login.equals("")) {
            response.setContentType("text/html;charset=utf-8");
            response.sendRedirect(request.getContextPath() + "/success.html");
        } else {
            response.setContentType("text/html;charset=utf-8");
            response.sendRedirect(request.getContextPath() + "/error.html");
        }


    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        this.doPost(request, response);
    }
}

@WebServlet("/loginServlet")
public class LoginServlet extends HttpServlet {
    private UserService userService = new UserServiceImpl();

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

        if (remember != null && "remember-me".equals(remember)) {

            Cookie cookie_username = new Cookie("username", username);
            Cookie cookie_password = new Cookie("password", password);
            response.addCookie(cookie_username);
            response.addCookie(cookie_password);
        }



        User user_login = userService.findUser(username, password);

        if (user_login != null && !user_login.equals("")) {
            response.setContentType("text/html;charset=utf-8");
            response.sendRedirect(request.getContextPath() + "/success.html");
        } else {
            response.setContentType("text/html;charset=utf-8");
            response.sendRedirect(request.getContextPath() + "/error.html");
        }


    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        this.doPost(request, response);
    }
}