package web.servlet.admin;

import domain.CDC;
import domain.Student;
import service.CDCService;
import service.StudentService;
import service.impl.CDCServiceImpl;
import service.impl.StudentServiceImpl;

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 java.io.IOException;
import java.util.List;

@WebServlet("/updateStudentServlet")
public class UpdateStudentServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        HttpSession session = request.getSession();
        String studentid = request.getParameter("sid");
//        session.setAttribute("sid",studentid);

        Student student = new Student();
        student.setS_id(studentid);
        // 创建学生服务的实现类实例，用于处理与学生相关的业务逻辑
        StudentService service = new StudentServiceImpl();
        Student newStudent = service.findStudentById(student);
        request.setAttribute("student",newStudent);

        // 创建 CDCService 的实现类实例，用于处理与院系、系别和班级相关的业务逻辑
        // 创建CDCService实例
        CDCService service2 = new CDCServiceImpl();
        // 调用findAllCollege方法获取所有学院列表
        List<CDC> collegeList = service2.findAllCollege();
        // 调用findAllDepartment方法获取所有部门列表
        List<CDC> departmentList = service2.findAllDepartment();
        // 调用findAllClass方法获取所有班级列表
        List<CDC> classList = service2.findAllClass();

        // 将学院列表存入session中
        session.setAttribute("collegeLists",collegeList);
        // 将部门列表存入session中
        session.setAttribute("departmentLists",departmentList);
        // 将班级列表存入session中
        session.setAttribute("classLists",classList);

        request.getRequestDispatcher("/WEB-INF/admin/updateStudent.jsp").forward(request,response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request,response);
    }
}
//package web.servlet.admin;
//
//import domain.CDC;
//import domain.Student;
//import service.CDCService;
//import service.StudentService;
//import service.impl.CDCServiceImpl;
//import service.impl.StudentServiceImpl;
//
//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 java.io.IOException;
//import java.util.List;
//
//@WebServlet("/updateStudentServlet")
//public class UpdateStudentServlet extends HttpServlet {
//    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//        request.setCharacterEncoding("utf-8");
//        HttpSession session = request.getSession();
//        String studentid = request.getParameter("sid");
////        session.setAttribute("sid",studentid);
//
//        Student student = new Student();
//        student.setS_id(studentid);
//        // 创建学生服务的实现类实例，用于处理与学生相关的业务逻辑
//        StudentService service = new StudentServiceImpl();
//        Student newStudent = service.findStudentById(student);
//        request.setAttribute("student",newStudent);
//
//        // 创建 CDCService 的实现类实例，用于处理与院系、系别和班级相关的业务逻辑
//        // 创建CDCService实例
//        CDCService service2 = new CDCServiceImpl();
//        // 调用findAllCollege方法获取所有学院列表
//        List<CDC> collegeList = service2.findAllCollege();
//        // 调用findAllDepartment方法获取所有部门列表
//        List<CDC> departmentList = service2.findAllDepartment();
//        // 调用findAllClass方法获取所有班级列表
//        List<CDC> classList = service2.findAllClass();
//
//        // 将学院列表存入session中
//        session.setAttribute("collegeLists",collegeList);
//        // 将部门列表存入session中
//        session.setAttribute("departmentLists",departmentList);
//        // 将班级列表存入session中
//        session.setAttribute("classLists",classList);
//
//        request.getRequestDispatcher("/WEB-INF/admin/updateStudent.jsp").forward(request,response);
//    }
//
//    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//        doPost(request,response);
//    }
//}