学生课程表管理系统——stage 2

核心代码

AdminController

package com.system.controller;

import com.system.exception.CustomException;
import com.system.po.*;
import com.system.service.*;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.annotation.Resource;
import java.util.List;


@Controller
@RequestMapping("/admin")
public class AdminController {

    @Resource(name = "studentServiceImpl")
    private StudentService studentService;

    @Resource(name = "teacherServiceImpl")
    private TeacherService teacherService;

    @Resource(name = "courseServiceImpl")
    private CourseService courseService;

    @Resource(name = "collegeServiceImpl")
    private CollegeService collegeService;

    @Resource(name = "userloginServiceImpl")
    private UserloginService userloginService;

    /*<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<学生操作>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/

    //  学生信息显示
    @RequestMapping("/showStudent")
    public String showStudent(Model model, Integer page) throws Exception {

        List<StudentCustom> list = null;
        //页码对象
        PagingVO pagingVO = new PagingVO();
        //设置总页数
        pagingVO.setTotalCount(studentService.getCountStudent());
        if (page == null || page == 0) {
            pagingVO.setToPageNo(1);
            list = studentService.findByPaging(1);
        } else {
            pagingVO.setToPageNo(page);
            list = studentService.findByPaging(page);
        }

        model.addAttribute("studentList", list);
        model.addAttribute("pagingVO", pagingVO);

        return "admin/showStudent";

    }

    //  添加学生信息页面显示
    @RequestMapping(value = "/addStudent", method = {RequestMethod.GET})
    public String addStudentUI(Model model) throws Exception {

        List<College> list = collegeService.finAll();

        model.addAttribute("collegeList", list);

        return "admin/addStudent";
    }

     // 添加学生信息操作
    @RequestMapping(value = "/addStudent", method = {RequestMethod.POST})
    public String addStudent(StudentCustom studentCustom, Model model) throws Exception {

        Boolean result = studentService.save(studentCustom);

        if (!result) {
            model.addAttribute("message", "学号重复");
            return "error";
        }
        //添加成功后，也添加到登录表
        Userlogin userlogin = new Userlogin();
        userlogin.setUsername(studentCustom.getUserid().toString());
        userlogin.setPassword("123");
        userlogin.setRole(2);
        userloginService.save(userlogin);

        //重定向
        return "redirect:/admin/showStudent";
    }

    // 修改学生信息页面显示
    @RequestMapping(value = "/editStudent", method = {RequestMethod.GET})
    public String editStudentUI(Integer id, Model model) throws Exception {
        if (id == null) {
            //加入没有带学生id就进来的话就返回学生显示页面
            return "redirect:/admin/showStudent";
        }
        StudentCustom studentCustom = studentService.findById(id);
        if (studentCustom == null) {
            throw new CustomException("未找到该名学生");
        }
        List<College> list = collegeService.finAll();

        model.addAttribute("collegeList", list);
        model.addAttribute("student", studentCustom);


        return "admin/editStudent";
    }

    // 修改学生信息处理
    @RequestMapping(value = "/editStudent", method = {RequestMethod.POST})
    public String editStudent(StudentCustom studentCustom) throws Exception {

        studentService.updataById(studentCustom.getUserid(), studentCustom);

        //重定向
        return "redirect:/admin/showStudent";
    }

    // 删除学生
    @RequestMapping(value = "/removeStudent", method = {RequestMethod.GET} )
    private String removeStudent(Integer id) throws Exception {
        if (id == null) {
            //加入没有带学生id就进来的话就返回学生显示页面
            return "admin/showStudent";
        }
        studentService.removeById(id);
        userloginService.removeByName(id.toString());

        return "redirect:/admin/showStudent";
    }

    // 搜索学生
    @RequestMapping(value = "selectStudent", method = {RequestMethod.POST})
    private String selectStudent(String findByName, Model model) throws Exception {

        List<StudentCustom> list = studentService.findByName(findByName);

        model.addAttribute("studentList", list);
        return "admin/showStudent";
    }

    /*<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<教师操作>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/

    // 教师页面显示
    @RequestMapping("/showTeacher")
    public String showTeacher(Model model, Integer page) throws Exception {

        List<TeacherCustom> list = null;
        //页码对象
        PagingVO pagingVO = new PagingVO();
        //设置总页数
        pagingVO.setTotalCount(teacherService.getCountTeacher());
        if (page == null || page == 0) {
            pagingVO.setToPageNo(1);
            list = teacherService.findByPaging(1);
        } else {
            pagingVO.setToPageNo(page);
            list = teacherService.findByPaging(page);
        }

        model.addAttribute("teacherList", list);
        model.addAttribute("pagingVO", pagingVO);

        return "admin/showTeacher";

    }

    // 添加教师信息
    @RequestMapping(value = "/addTeacher", method = {RequestMethod.GET})
    public String addTeacherUI(Model model) throws Exception {

        List<College> list = collegeService.finAll();

        model.addAttribute("collegeList", list);

        return "admin/addTeacher";
    }

    // 添加教师信息处理
    @RequestMapping(value = "/addTeacher", method = {RequestMethod.POST})
    public String addTeacher(TeacherCustom teacherCustom, Model model) throws Exception {

        Boolean result = teacherService.save(teacherCustom);

        if (!result) {
            model.addAttribute("message", "工号重复");
            return "error";
        }
        //添加成功后，也添加到登录表
        Userlogin userlogin = new Userlogin();
        userlogin.setUsername(teacherCustom.getUserid().toString());
        userlogin.setPassword("123");
        userlogin.setRole(1);
        userloginService.save(userlogin);

        //重定向
        return "redirect:/admin/showTeacher";
    }

    // 修改教师信息页面显示
    @RequestMapping(value = "/editTeacher", method = {RequestMethod.GET})
    public String editTeacherUI(Integer id, Model model) throws Exception {
        if (id == null) {
            return "redirect:/admin/showTeacher";
        }
        TeacherCustom teacherCustom = teacherService.findById(id);
        if (teacherCustom == null) {
            throw new CustomException("未找到该名学生");
        }
        List<College> list = collegeService.finAll();

        model.addAttribute("collegeList", list);
        model.addAttribute("teacher", teacherCustom);


        return "admin/editTeacher";
    }

    // 修改教师信息页面处理
    @RequestMapping(value = "/editTeacher", method = {RequestMethod.POST})
    public String editTeacher(TeacherCustom teacherCustom) throws Exception {

        teacherService.updateById(teacherCustom.getUserid(), teacherCustom);

        //重定向
        return "redirect:/admin/showTeacher";
    }

    //删除教师
    @RequestMapping("/removeTeacher")
    public String removeTeacher(Integer id) throws Exception {
        if (id == null) {
            //加入没有带教师id就进来的话就返回教师显示页面
            return "admin/showTeacher";
        }
        teacherService.removeById(id);
        userloginService.removeByName(id.toString());

        return "redirect:/admin/showTeacher";
    }

    //搜索教师
    @RequestMapping(value = "selectTeacher", method = {RequestMethod.POST})
    private String selectTeacher(String findByName, Model model) throws Exception {

        List<TeacherCustom> list = teacherService.findByName(findByName);

        model.addAttribute("teacherList", list);
        return "admin/showTeacher";
    }

    /*<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<课程操作>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/

    // 课程信息显示
    @RequestMapping("/showCourse")
    public String showCourse(Model model, Integer page) throws Exception {

        List<CourseCustom> list = null;
        //页码对象
        PagingVO pagingVO = new PagingVO();
        //设置总页数
        pagingVO.setTotalCount(courseService.getCountCouse());
        if (page == null || page == 0) {
            pagingVO.setToPageNo(1);
            list = courseService.findByPaging(1);
        } else {
            pagingVO.setToPageNo(page);
            list = courseService.findByPaging(page);
        }

        model.addAttribute("courseList", list);
        model.addAttribute("pagingVO", pagingVO);

        return "admin/showCourse";

    }

    //添加课程
    @RequestMapping(value = "/addCourse", method = {RequestMethod.GET})
    public String addCourseUI(Model model) throws Exception {

        List<TeacherCustom> list = teacherService.findAll();
        List<College> collegeList = collegeService.finAll();

        model.addAttribute("collegeList", collegeList);
        model.addAttribute("teacherList", list);

        return "admin/addCourse";
    }

    // 添加课程信息处理
    @RequestMapping(value = "/addCourse", method = {RequestMethod.POST})
    public String addCourse(CourseCustom courseCustom, Model model) throws Exception {

        Boolean result = courseService.save(courseCustom);

        if (!result) {
            model.addAttribute("message", "课程号重复");
            return "error";
        }


        //重定向
        return "redirect:/admin/showCourse";
    }

    // 修改教师信息页面显示
    @RequestMapping(value = "/editCourse", method = {RequestMethod.GET})
    public String editCourseUI(Integer id, Model model) throws Exception {
        if (id == null) {
            return "redirect:/admin/showCourse";
        }
        CourseCustom courseCustom = courseService.findById(id);
        if (courseCustom == null) {
            throw new CustomException("未找到该课程");
        }
        List<TeacherCustom> list = teacherService.findAll();
        List<College> collegeList = collegeService.finAll();

        model.addAttribute("teacherList", list);
        model.addAttribute("collegeList", collegeList);
        model.addAttribute("course", courseCustom);


        return "admin/editCourse";
    }

    // 修改教师信息页面处理
    @RequestMapping(value = "/editCourse", method = {RequestMethod.POST})
    public String editCourse(CourseCustom courseCustom) throws Exception {

        courseService.upadteById(courseCustom.getCourseid(), courseCustom);

        //重定向
        return "redirect:/admin/showCourse";
    }

    // 删除课程信息
    @RequestMapping("/removeCourse")
    public String removeCourse(Integer id) throws Exception {
        if (id == null) {
            //加入没有带教师id就进来的话就返回教师显示页面
            return "admin/showCourse";
        }
        courseService.removeById(id);

        return "redirect:/admin/showCourse";
    }

    //搜索课程
    @RequestMapping(value = "selectCourse", method = {RequestMethod.POST})
    private String selectCourse(String findByName, Model model) throws Exception {

        List<CourseCustom> list = courseService.findByName(findByName);

        model.addAttribute("courseList", list);
        return "admin/showCourse";
    }

    /*<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<其他操作>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/

    // 普通用户账号密码重置
    @RequestMapping("/userPasswordRest")
    public String userPasswordRestUI() throws Exception {
        return "admin/userPasswordRest";
    }

    // 普通用户账号密码重置处理
    @RequestMapping(value = "/userPasswordRest", method = {RequestMethod.POST})
    public String userPasswordRest(Userlogin userlogin) throws Exception {

        Userlogin u = userloginService.findByName(userlogin.getUsername());

        if (u != null) {
            if (u.getRole() == 0) {
                throw new CustomException("该账户为管理员账户，没法修改");
            }
            u.setPassword(userlogin.getPassword());
            userloginService.updateByName(userlogin.getUsername(), u);
        } else {
            throw new CustomException("没找到该用户");
        }

        return "admin/userPasswordRest";
    }

    // 本账户密码重置
    @RequestMapping("/passwordRest")
    public String passwordRestUI() throws Exception {
        return "admin/passwordRest";
    }


}
　　该代码实现的是管理员界面能够实现的所有功能，包括学生、课程和老师页面的显示、添加、修改、删除、搜索功能，还提供了用户密码的重置功能

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　LoginController

package com.system.controller;

import com.system.po.Userlogin;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class LoginController {

    //登录跳转
    @RequestMapping(value = "/login", method = {RequestMethod.GET})
    public String loginUI() throws Exception {
        return "../../login";
    }

    //登录表单处理
    @RequestMapping(value = "/login", method = {RequestMethod.POST})
    public String login(Userlogin userlogin) throws Exception {

        //Shiro实现登录
        UsernamePasswordToken token = new UsernamePasswordToken(userlogin.getUsername(),
                userlogin.getPassword());
        Subject subject = SecurityUtils.getSubject();

        //如果获取不到用户名就是登录失败，但登录失败的话，会直接抛出异常
        subject.login(token);

        if (subject.hasRole("admin")) {
            return "redirect:/admin/showStudent";
        } else if (subject.hasRole("teacher")) {
            return "redirect:/teacher/showCourse";
        } else if (subject.hasRole("student")) {
            return "redirect:/student/showCourse";
        }

        return "/login";
    }

}
　　本段代码实现了利用Shiro技术来实现登陆，包括登陆表单的处理、登陆的跳转和异常的处理

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　ResetPasswordController

package com.system.controller;

import com.system.exception.CustomException;
import com.system.po.Userlogin;
import com.system.service.UserloginService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.annotation.Resource;

@Controller
public class RestPasswordController {

    @Resource(name = "userloginServiceImpl")
    private UserloginService userloginService;

    // 本账户密码重置
    @RequestMapping(value = "/passwordRest", method = {RequestMethod.POST})
    public String passwordRest(String oldPassword, String password1) throws Exception {
        Subject subject = SecurityUtils.getSubject();
        String username = (String) subject.getPrincipal();

        Userlogin userlogin = userloginService.findByName(username);

        if (!oldPassword.equals(userlogin.getPassword())) {
            throw new CustomException("旧密码不正确");
        } else {
            userlogin.setPassword(password1);
            userloginService.updateByName(username, userlogin);
        }

        return "redirect:/logout";
    }

}
　　本段代码是密码重置过程的实现


　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　StudentController

package com.system.controller;

import com.system.exception.CustomException;
import com.system.po.*;
import com.system.service.CourseService;
import com.system.service.SelectedCourseService;
import com.system.service.StudentService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.annotation.Resource;
import java.util.List;


@Controller
@RequestMapping(value = "/student")
public class StudentController {

    @Resource(name = "courseServiceImpl")
    private CourseService courseService;

    @Resource(name = "studentServiceImpl")
    private StudentService studentService;

    @Resource(name = "selectedCourseServiceImpl")
    private SelectedCourseService selectedCourseService;

    @RequestMapping(value = "/showCourse")
    public String stuCourseShow(Model model, Integer page) throws Exception {

        List<CourseCustom> list = null;
        //页码对象
        PagingVO pagingVO = new PagingVO();
        //设置总页数
        pagingVO.setTotalCount(courseService.getCountCouse());
        if (page == null || page == 0) {
            pagingVO.setToPageNo(1);
            list = courseService.findByPaging(1);
        } else {
            pagingVO.setToPageNo(page);
            list = courseService.findByPaging(page);
        }

        model.addAttribute("courseList", list);
        model.addAttribute("pagingVO", pagingVO);

        return "student/showCourse";
    }

    // 选课操作
    @RequestMapping(value = "/stuSelectedCourse")
    public String stuSelectedCourse(int id) throws Exception {
        //获取当前用户名
        Subject subject = SecurityUtils.getSubject();
        String username = (String) subject.getPrincipal();

        SelectedCourseCustom selectedCourseCustom = new SelectedCourseCustom();
        selectedCourseCustom.setCourseid(id);
        selectedCourseCustom.setStudentid(Integer.parseInt(username));

        SelectedCourseCustom s = selectedCourseService.findOne(selectedCourseCustom);

        if (s == null) {
            selectedCourseService.save(selectedCourseCustom);
        } else {
            throw new CustomException("该门课程你已经选了，不能再选");
        }

        return "redirect:/student/selectedCourse";
    }

    // 退课操作
    @RequestMapping(value = "/outCourse")
    public String outCourse(int id) throws Exception {
        Subject subject = SecurityUtils.getSubject();
        String username = (String) subject.getPrincipal();

        SelectedCourseCustom selectedCourseCustom = new SelectedCourseCustom();
        selectedCourseCustom.setCourseid(id);
        selectedCourseCustom.setStudentid(Integer.parseInt(username));

        selectedCourseService.remove(selectedCourseCustom);

        return "redirect:/student/selectedCourse";
    }

    // 已选课程
    @RequestMapping(value = "/selectedCourse")
    public String selectedCourse(Model model) throws Exception {
        //获取当前用户名
        Subject subject = SecurityUtils.getSubject();
        StudentCustom studentCustom = studentService.findStudentAndSelectCourseListByName((String) subject.getPrincipal());

        List<SelectedCourseCustom> list = studentCustom.getSelectedCourseList();

        model.addAttribute("selectedCourseList", list);

        return "student/selectCourse";
    }

    // 已修课程
    @RequestMapping(value = "/overCourse")
    public String overCourse(Model model) throws Exception {

        //获取当前用户名
        Subject subject = SecurityUtils.getSubject();
        StudentCustom studentCustom = studentService.findStudentAndSelectCourseListByName((String) subject.getPrincipal());

        List<SelectedCourseCustom> list = studentCustom.getSelectedCourseList();

        model.addAttribute("selectedCourseList", list);

        return "student/overCourse";
    }

    //修改密码
    @RequestMapping(value = "/passwordRest")
    public String passwordRest() throws Exception {
        return "student/passwordRest";
    }



}
　　本段代码是学生页面功能的实现，其中包括选课、退课、查询已选课程、查询已修课程和修改密码。


　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　TeacherComtroller

package com.system.controller;

import com.system.exception.CustomException;
import com.system.po.*;
import com.system.service.CourseService;
import com.system.service.SelectedCourseService;
import com.system.service.StudentService;
import com.system.service.TeacherService;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.annotation.Resource;
import java.util.List;

@Controller
@RequestMapping(value = "/teacher")
public class TeacherController {

    @Resource(name = "teacherServiceImpl")
    private TeacherService teacherService;

    @Resource(name = "courseServiceImpl")
    private CourseService courseService;

    @Resource(name = "selectedCourseServiceImpl")
    private SelectedCourseService selectedCourseService;

    // 显示我的课程
    @RequestMapping(value = "/showCourse")
    public String stuCourseShow(Model model) throws Exception {

        Subject subject = SecurityUtils.getSubject();
        String username = (String) subject.getPrincipal();

        List<CourseCustom> list = courseService.findByTeacherID(Integer.parseInt(username));
        model.addAttribute("courseList", list);

        return "teacher/showCourse";
    }

    // 显示成绩
    @RequestMapping(value = "/gradeCourse")
    public String gradeCourse(Integer id, Model model) throws Exception {
        if (id == null) {
            return "";
        }
        List<SelectedCourseCustom> list = selectedCourseService.findByCourseID(id);
        model.addAttribute("selectedCourseList", list);
        return "teacher/showGrade";
    }

    // 打分
    @RequestMapping(value = "/mark", method = {RequestMethod.GET})
    public String markUI(SelectedCourseCustom scc, Model model) throws Exception {

        SelectedCourseCustom selectedCourseCustom = selectedCourseService.findOne(scc);

        model.addAttribute("selectedCourse", selectedCourseCustom);

        return "teacher/mark";
    }

    // 打分
    @RequestMapping(value = "/mark", method = {RequestMethod.POST})
    public String mark(SelectedCourseCustom scc) throws Exception {

        selectedCourseService.updataOne(scc);

        return "redirect:/teacher/gradeCourse?id="+scc.getCourseid();
    }

    //修改密码
    @RequestMapping(value = "/passwordRest")
    public String passwordRest() throws Exception {
        return "teacher/passwordRest";
    }

}
　　本程序是教师页面功能的实现，包括显示教师本人的课程、显示成绩、对课程进行打分和修改（教师的）密码。