大三web课程大作业，图书管理系统使用sevlet+jsp.zip

package com.xiaoxin.servlet; import com.xiaoxin.bean.BorrowRecordView; import com.xiaoxin.bean.Reader; import com.xiaoxin.bean.Staff; import com.xiaoxin.dao.*; import javax.servlet.*; import javax.servlet.http.*; import javax.servlet.annotation.*; import java.io.IOException; import java.sql.SQLException; import java.util.ArrayList; @WebServlet( "/ServletLoginCheck") public class ServletLoginCheck extends HttpServlet { @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("UTF-8"); String staff_username=request.getParameter("staff_username"); String password=request.getParameter("password"); String jueSe = request.getParameter("jueSe"); System.out.println("登录页面用户选择的角色："+jueSe); StaffDao dao = new StaffDao(); StaffRolesViewDao viewDao=new StaffRolesViewDao(); ReaderDao readerDao=new ReaderDao(); HttpSession sessions = request.getSession(); try { Staff loginStaff = viewDao.getOne(staff_username); Reader loginReader = readerDao.getOneReader(staff_username); RolesDao rolesDao = new RolesDao(); // 储存角色列表 sessions.setAttribute("RoleNameList", rolesDao.getAllRoles()); System.out.println("查询所有的工作人员"+sessions.getAttribute("RoleNameList")); if (jueSe.equals("工作人员")) { if (loginStaff != null) { String role=loginStaff.getRole(); if (password.equals(loginStaff.getPassword())) { sessions.setAttribute("LOGININFO","用户的密码输入正确"); System.out.println("第一次存入session中的值LOGININFO:"+sessions.getAttribute("LOGININFO")); System.out.println("登录用户的身份：" + role); if (role.equals("人事部")) { response.sendRedirect("StaffMangementIframe/main.html"); sessions.setAttribute("LOGINPERSON",loginStaff); } else if (role.equals("图书管理员")) { response.sendRedirect("experiment3/frame/BookMangement/main.html"); sessions.setAttribute("LOGINPERSON",loginStaff); System.out.println("登录成功之后存储到session中的值LOGINPERSON:"+sessions.getAttribute("LOGINPERSON")); } else response.sendRedirect("404.html"); }else { response.sendRedirect("login.html"); sessions.setAttribute("LOGININFO","密码错误"); } }else sessions.setAttribute("LOGININFO", "用户不存在"); }else{ if (loginReader != null) { System.out.println("从数据库中查询到的用户信息：" + loginReader.toString()); if (password.equals(loginReader.getPassword())) { sessions.setAttribute("LOGININFO", "读者的密码输入正确"); System.out.println("读者登录成功"); // 储存借阅信息 BorrowReacordDao borrowReacordDao = new BorrowReacordDao(); ArrayList<BorrowRecordView> allRecord = borrowReacordDao.getAllRecord(); sessions.setAttribute("ReturnBook",allRecord); System.out.println("登陆的时候直接存储ReturnBook" + sessions.getAttribute("ReturnBook")); // 存储所有的借阅信息 ArrayList<BorrowRecordView> allRecordYesAndNo = borrowReacordDao.getAllRecordYesAndNo(); sessions.setAttribute("AllBWMethod", allRecordYesAndNo); response.sendRedirect("ReaderIframe/main.html"); sessions.setAttribute("LOGINPERSON", loginReader); System.out.println("存到session中的登录读者的用户信息"+sessions.getAttribute("LOGINPERSON")); } } } } catch (SQLException e) { throw new RuntimeException(e); } } }