gdms/src/servlet/account/login.java

package servlet.account;

import java.io.IOException;
import java.sql.SQLException;

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 core.user.Student;
import core.user.User;
import core.user.utils.AccountManagement;
import error.GExcptAccount;
import error.GExcptSQL;

@WebServlet("/login")
public class login extends HttpServlet {
  protected void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    String id=request.getParameter("id");
    String password=request.getParameter("password");
    User user = null;
      try {
          user = AccountManagement.login(id,password);
      } catch (GExcptSQL | SQLException gExcptSQL) {
          gExcptSQL.printStackTrace();
      } catch (GExcptAccount gExcptAccount) {
          gExcptAccount.printStackTrace();
      } catch (Exception e) {
        e.printStackTrace();
      }
    request.getSession().setAttribute("user",user);
      request.getRequestDispatcher("/home.jsp").forward(request,response);
  }
}