package web.servlet.teacher;

import service.TeacherService;
import service.impl.TeacherServiceImpl;

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;

@WebServlet("/deleteOptionalCourseServlet")
public class DeleteOptionalCourseServlet extends HttpServlet {

    // 处理POST请求的方法
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // 设置请求字符编码为UTF-8，以支持中文字符
        request.setCharacterEncoding("utf-8");

        // 获取请求 "cid"，表示要删除的课程ID
        String cid = request.getParameter("cid");

        // 创建教师服务的实现类实例
        TeacherService service = new TeacherServiceImpl();

        // 调用服务层方法，根据课程ID删除课程
        service.deleteCourseById(cid);

        // 请求转发到教师可选课程的Servlet，以更新课程列表
        request.getRequestDispatcher("/teacherOptionalCourseServlet").forward(request, response);
    }

    // 处理GET请求的方法
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // 对于GET请求，调用doPost方法进行处理
        doPost(request, response);
    }
}
//public class DeleteOptionalCourseServlet extends HttpServlet {
//
//    // 处理POST请求的方法
//    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//        // 设置请求字符编码为UTF-8，以支持中文字符
//        request.setCharacterEncoding("utf-8");
//
//        // 获取请求 "cid"，表示要删除的课程ID
//        String cid = request.getParameter("cid");
//
//        // 创建教师服务的实现类实例
//        TeacherService service = new TeacherServiceImpl();
//
//        // 调用服务层方法，根据课程ID删除课程
//        service.deleteCourseById(cid);
//
//        // 请求转发到教师可选课程的Servlet，以更新课程列表
//        request.getRequestDispatcher("/teacherOptionalCourseServlet").forward(request, response);
//    }
//
//    // 处理GET请求的方法
//    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//        // 对于GET请求，调用doPost方法进行处理
//        doPost(request, response);
//    }
//}