protected void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {

    String id = request.getParameter("id");
    String firstname = request.getParameter("firstname");
    String lastname = request.getParameter("lastname");
    String phone = request.getParameter("phone");
    String email = request.getParameter("email");
    String attendance = request.getParameter("attendance");
    String photo = request.getParameter("upload");
    String insert = request.getParameter("insert");

    StudDao sd = new StudDao();
    List<Student> list = sd.select();
    request.setAttribute("List", list);

    if (ServletFileUpload.isMultipartContent(request)) {
      //   System.out.println("file Uploading");

      RequestDispatcher rd = request.getRequestDispatcher("/StudentUpload");
      rd.forward(request, response);
    }

    if (insert != null && insert != "") {

      sd.insert(firstname, lastname, email, attendance, photo, phone, Integer.parseInt("enroll"));
      list = sd.select();
      request.setAttribute("List", list);

      response.sendRedirect("Student/form");
    }
  }
  @Override
  protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    String id = request.getParameter("id");
    StudDao sd = new StudDao();

    if (request.getParameter("delete") != null
        && request.getParameter("delete") != ""
        && request.getParameter("delete").equals("trash")) {
      System.out.println("delete operation");
      sd.delete(Integer.parseInt(id));
      List list = sd.select();
      request.setAttribute("List", list);

      response.sendRedirect("Student/form");
    }
  }