Java如何实现考试管理系统

本篇内容主要讲解“Java如何实现考试管理系统”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“Java如何实现考试管理系统”吧!

项目简述

本系统功能包括：

支持单选题、多选题、判断题支持学生(student)、教师(teacher)、管理员(admin)三种角色学生：参加考试和查看我的考试教师：学生的所有权限+创建/编辑题目+创建/编辑考试管理员：教师的所有权限+管理用户。

项目运行

环境配置：

Jdk1.8 + Tomcat8.5 + Mysql + HBuilderX（Webstorm也行）+ Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）。

项目技术

Springboot + Maven + Jpa+ Vue 等等组成，B/S模式 + Maven管理等等。

效果图展示

主要代码

登录控制层：

@RestControllerpublic class LoginController {     @Resource(name = "loginService")    private ILoginService loginService;         @RequestMapping(value = "/login/login", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    public Result<Token> login(HttpRequest request) {        return loginService.login(request.getString("login_name"), request.getString("pwd"));    }         @RequestMapping(value = "/login/check", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    public Result<Token> check() {        return new Result<>();    }         @RequestMapping(value = "/login/refresh", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    public Result<Token> refresh(HttpRequest request) {        String refreshToken = request.getString("refresh_token");        String urlId = request.getString("url_id");        Token token = TokenCache.getInstance().get(urlId);        if(token == null){            ExceptionHelper.error(ErrorCode.ERROR_CODE_0003);        }        try {            Claims claims = TokenUtils.parseToken(refreshToken);            if (StringUtils.isNotEmpty((String.valueOf(claims.getOrDefault("student_id", ""))))) {                claims.put("student_id", SessionContext.get("student_id"));            }            if (StringUtils.isNotEmpty((String.valueOf(claims.getOrDefault("teacher_id", ""))))) {                claims.put("teacher_id", SessionContext.get("teacher_id"));            }            if (StringUtils.isNotEmpty((String.valueOf(claims.getOrDefault("login_name", ""))))) {                claims.put("login_name", SessionContext.get("login_name"));            }            claims.put("name", claims.get("name"));            token.setToken(TokenUtils.createToken(claims, TokenUtils.expireTime));            token.setRefreshToken(TokenUtils.createToken(claims, TokenUtils.long_expireTime));            TokenCache.getInstance().add(token);        } catch (Exception e) {            ExceptionHelper.error(ErrorCode.ERROR_CODE_0003);        }        return new Result<>(token);    }         @RequestMapping(value = "/login/exit", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    public Result<Token> exit(HttpRequest request) {        String urlId = request.getString("url_id");        if (StringUtils.isNotEmpty(urlId)) {            TokenCache.getInstance().remove(urlId);        }        return new Result<>();    }}

统一管理学生 教师 管理员信息：

  @RestControllerpublic class UserController {     @Resource(name = "userService")    private IUserService userService;         @RequestMapping(value = "/user/qryUserInfo", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    public Result<User> qryUserInfo() {        return userService.qryUserInfo();    }         @RequestMapping(value = "/user/update", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    public Result<User> update(HttpRequest request) {        User user = new User();        user.setUserId(request.getString("user_id"));        user.setName(request.getString("name"));        user.setSex(request.getInteger("sex"));        user.setType(User.UserType.get(request.getInteger("type")));        return userService.update(user, ImageUtil.stringToBytes(request.getString("user_image")));    }         @RequestMapping(value = "/user/updatePwd", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    public Result<User> updatePwd(HttpRequest request) {        return userService.updatePwd(request.getString("old_pwd"), request.getString("pwd"));    }}

学生管理控制器：

@RestControllerpublic class StudentController {     @Resource(name = "studentService")    private IStudentService studentService;         @RequestMapping(value = "/student/qryPage", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    @RoleAnnotation(types = {RoleEnum.admin})    public ListResult<Student> qryPage(HttpRequest request) {        Map<String, Object> param = new HashMap<>();        int pageNo = request.containsKey("page_no") ? request.getInteger("page_no") : 1;        int pageSize = request.containsKey("page_size") ? request.getInteger("page_size") : 20;        if (request.containsKey("student_id")) {            param.put("student_id", request.getString("student_id"));        }        if (request.containsKey("name")) {            param.put("name", request.getString("name"));        }        return studentService.qryPage(param, pageNo, pageSize);    }     @RequestMapping(value = "/student/add", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    @RoleAnnotation(types = {RoleEnum.admin})    public Result<Student> insert(HttpRequest request) {        Student student = new Student();        student.setStudentId(request.getString("student_id"));        student.setName(request.getString("student_name"));        student.setPwd(request.getString("student_id"));        student.setSex(request.getInteger("sex"));        student.setClassId(request.getString("class_id"));        student.setUpdateTime(new Date());        return studentService.insert(student, ImageUtil.stringToBytes(request.getString("student_image")));    }     @RequestMapping(value = "/student/update", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    @RoleAnnotation(types = {RoleEnum.admin})    public Result<Student> update(HttpRequest request) {        Student student = new Student();        student.setStudentId(request.getString("student_id"));        student.setName(request.getString("student_name"));        student.setPwd(request.getString("student_id"));        student.setSex(request.getInteger("sex"));        student.setClassId(request.getString("class_id"));        student.setUpdateTime(new Date());        return studentService.update(student, ImageUtil.stringToBytes(request.getString("student_image")));    }     @RequestMapping(value = "/student/del", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})    @RoleAnnotation(types = {RoleEnum.admin})    public Result<Student> del(HttpRequest request) {        List<String> studentIdList = new ArrayList<>();        JSONArray array = request.getJSONArray("student_id_list");        for (int i = 0; i < array.size(); i++) {            studentIdList.add(array.getString(i));        }        return studentService.del(studentIdList);    }  }

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