|
|
package web.servlet.cdc;
|
|
|
|
|
|
import domain.Admin;
|
|
|
import domain.CDC;
|
|
|
import domain.Student;
|
|
|
import domain.Teacher;
|
|
|
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("/cdcListServlet")
|
|
|
public class CDCListServlet extends HttpServlet {
|
|
|
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
|
|
|
request.setCharacterEncoding("utf-8");
|
|
|
//调用StudentService完成查询-
|
|
|
CDCService service = new CDCServiceImpl();
|
|
|
List<CDC> cdcs = service.findAll();
|
|
|
//将list存入request域-
|
|
|
request.setAttribute("cdcs",cdcs);
|
|
|
|
|
|
// 获取当前会话
|
|
|
HttpSession session = request.getSession();
|
|
|
// 从会话中获取学生对象
|
|
|
Student student= (Student)session.getAttribute("student");
|
|
|
// 从会话中获取管理员对象
|
|
|
Admin admin= (Admin)session.getAttribute("admin");
|
|
|
// 从会话中获取教师对象
|
|
|
Teacher teacher= (Teacher)session.getAttribute("teacher");
|
|
|
|
|
|
// 如果会话中存在学生对象，且不存在管理员对象和教师对象，则跳转到学生CDC列表页面
|
|
|
if (student != null && admin == null && teacher == null) {
|
|
|
request.getRequestDispatcher("/WEB-INF/student/sCDCList.jsp").forward(request, response);
|
|
|
// 如果会话中存在管理员对象，且不存在学生对象和教师对象，则跳转到管理员CDC列表页面
|
|
|
} else if (admin != null && student == null && teacher == null) {
|
|
|
request.getRequestDispatcher("/WEB-INF/admin/aCDCList.jsp").forward(request, response);
|
|
|
// 如果会话中存在教师对象，且不存在学生对象和管理员对象，则跳转到教师CDC列表页面
|
|
|
} else if (teacher != null && admin == null && student == null) {
|
|
|
request.getRequestDispatcher("/WEB-INF/teacher/tCDCList.jsp").forward(request, response);
|
|
|
// 如果会话中不存在学生对象、管理员对象和教师对象，则跳转到错误页面
|
|
|
} else {
|
|
|
request.getRequestDispatcher("error.jsp").forward(request, response);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
|
|
|
this.doPost(request,response);
|
|
|
}
|
|
|
}
|
|
|
//package web.servlet.cdc;
|
|
|
//
|
|
|
//import domain.Admin;
|
|
|
//import domain.CDC;
|
|
|
//import domain.Student;
|
|
|
//import domain.Teacher;
|
|
|
//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("/cdcListServlet")
|
|
|
//public class CDCListServlet extends HttpServlet {
|
|
|
// protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
|
|
|
// request.setCharacterEncoding("utf-8");
|
|
|
// //调用StudentService完成查询-
|
|
|
// CDCService service = new CDCServiceImpl();
|
|
|
// List<CDC> cdcs = service.findAll();
|
|
|
// //将list存入request域-
|
|
|
// request.setAttribute("cdcs",cdcs);
|
|
|
//
|
|
|
// // 获取当前会话
|
|
|
// HttpSession session = request.getSession();
|
|
|
// // 从会话中获取学生对象
|
|
|
// Student student= (Student)session.getAttribute("student");
|
|
|
// // 从会话中获取管理员对象
|
|
|
// Admin admin= (Admin)session.getAttribute("admin");
|
|
|
// // 从会话中获取教师对象
|
|
|
// Teacher teacher= (Teacher)session.getAttribute("teacher");
|
|
|
//
|
|
|
// // 如果会话中存在学生对象，且不存在管理员对象和教师对象，则跳转到学生CDC列表页面
|
|
|
// if (student != null && admin == null && teacher == null) {
|
|
|
// request.getRequestDispatcher("/WEB-INF/student/sCDCList.jsp").forward(request, response);
|
|
|
// // 如果会话中存在管理员对象，且不存在学生对象和教师对象，则跳转到管理员CDC列表页面
|
|
|
// } else if (admin != null && student == null && teacher == null) {
|
|
|
// request.getRequestDispatcher("/WEB-INF/admin/aCDCList.jsp").forward(request, response);
|
|
|
// // 如果会话中存在教师对象，且不存在学生对象和管理员对象，则跳转到教师CDC列表页面
|
|
|
// } else if (teacher != null && admin == null && student == null) {
|
|
|
// request.getRequestDispatcher("/WEB-INF/teacher/tCDCList.jsp").forward(request, response);
|
|
|
// // 如果会话中不存在学生对象、管理员对象和教师对象，则跳转到错误页面
|
|
|
// } else {
|
|
|
// request.getRequestDispatcher("error.jsp").forward(request, response);
|
|
|
// }
|
|
|
// }
|
|
|
//
|
|
|
// protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
|
|
|
// this.doPost(request,response);
|
|
|
// }
|
|
|
//}
|
