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导师双选系统

时间:2020-11-14 22:44:28      阅读:61      评论:0      收藏:0      [点我收藏+]

package controller;

import dao.UserDao;
import model.*;

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.sql.SQLException;

@WebServlet("/changepwd")
public class ChangePasswordController extends HttpServlet {

private static final String student = "学生";
    private static final String teacher = "导师";
    private static final String academicAdmin = "学院管理呿";
    private static final String schoolAdmin = "研究生院管理呿";

@Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
        req.setCharacterEncoding("utf-8");
        resp.setContentType("text/html;charset=utf-8;");
        String former = req.getParameter("former");
        String newpwd = req.getParameter("new");
        String confirm = req.getParameter("confirm");
        String userType = req.getParameter("userType");
        System.out.println("userType line 31: " + userType);
        HttpSession session = req.getSession();
        if(newpwd.equals(confirm)) {
            if (student.equals(userType)) {
                Student stu = (Student)session.getAttribute("currentStudent");
                System.out.println("stu.getStudent_number(): " + stu.getStudent_number());
                boolean exists = UserDao.userExists(stu.getStudent_number(), former, stu.getIdentity());
                if(!exists){
                    resp.getWriter().println("

错误,原密码输入错诿

");
                    return;
                }
                UserDao.changePassword(stu.getStudent_number(), newpwd);
            } else if (teacher.equals(userType)) {
                Teacher tea = (Teacher)session.getAttribute("currentTeacher");
                boolean exists = UserDao.userExists(tea.getTeacherNumber(), former, tea.getIdentity());
                if(!exists){
                    resp.getWriter().println("

错误,原密码输入错诿

");
                    return;
                }
                UserDao.changePassword(tea.getTeacherNumber(), newpwd);
            } else if (academicAdmin.equals(userType)) {
                AcademicAdmin aca = (AcademicAdmin)session.getAttribute("currentAcademicAdmin");
                boolean exists = UserDao.userExists(aca.getAdminNumber(), former, aca.getIdentity());
                if(!exists){
                    resp.getWriter().println("

错误,原密码输入错诿

");
                    return;
                }
                UserDao.changePassword(aca.getAdminNumber(), newpwd);
            } else if (schoolAdmin.equals(userType)) {
                SchoolAdmin sch = (SchoolAdmin)session.getAttribute("currentSchoolAdmin");
                boolean exists = UserDao.userExists(sch.getAdminNumber(), former, sch.getIdentity());
                if(!exists){
                    resp.getWriter().println("

错误,原密码输入错诿

");
                    return;
                }
                UserDao.changePassword(sch.getAdminNumber(), newpwd);
            } else {
                resp.getWriter().println("

错误,修改失败

");
            }
            resp.getWriter().println("

密码修改成功

");
        }else {
            resp.getWriter().println("

错误,两次密码不一臿

");
        }
    }

@Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req, resp);
    }
}

导师双选系统

原文:https://www.cnblogs.com/daizuo/p/13974655.html

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