Java项目:在线考试系统(java+springBoot+vue+Mysql+maven)

管理员和教师登陆此账号就进入后台，学生登陆此账号就进入前端做题。

老师发布了考试,学生才可以在主页面看到相应的考试信息。 有考试安排表以后,才能给该次考试添加题目,对应数据表是exammanage。 该表保存该次考试,课程名称,考试时间,所属专业,学院等等信息。

题库表设计和普通数据表设计有所区别。分别是选择题题库表,填空题题库表,判断题题库表, 每个表保存相应类型的题库,通过一张中间表,将题库和试题关联起来。 这样就组成了一张完整的试卷。

管理员的功能：

考试管理、题库管理、成绩查询、学生管理、教师管理

首先需要增加考试，才能在这个考试下，添加题目。题目可以在题库中自由组题。

学生功能：

查看可以做的试卷、已经做的试卷练习、自己每次考试的分数、给管理员留言等。

 

 

 

 

 

 

 

统一管理学生 教师 管理员信息控制层：

/**
 * 统一管理学生 教师 管理员信息
 */
@RestController
public class UserController {

    @Resource(name = "userService")
    private IUserService userService;

    /**
     * 查询用户信息
     * 先判断用户类型 在查询用户信息
     */
    @RequestMapping(value = "/user/qryUserInfo", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    public Result qryUserInfo() {
        return userService.qryUserInfo();
    }

    /**
     * 更新用户信息
     */
    @RequestMapping(value = "/user/update", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    public Result 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")));
    }

    /**
     * 更新用户密码
     */
    @RequestMapping(value = "/user/updatePwd", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    public Result updatePwd(HttpRequest request) {
        return userService.updatePwd(request.getString("old_pwd"), request.getString("pwd"));
    }
}

用户登陆控制层：

@RestController
public class LoginController {

    @Resource(name = "loginService")
    private ILoginService loginService;

    /**
     * 用户登录调用 在登陆成功生成两个token 同时返回各自首页
     * * 学生 student/student
     * * 老师 teacher/teacher
     * * 管理员 admin/admin
     */
    @RequestMapping(value = "/login/login", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    public Result login(HttpRequest request) {
        return loginService.login(request.getString("login_name"), request.getString("pwd"));
    }

    /**
     * 登录检查
     */
    @RequestMapping(value = "/login/check", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    public Result check() {
        return new Result<>();
    }

    /**
     * token 续约
     */
    @RequestMapping(value = "/login/refresh", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    public Result 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);
    }

    /**
     * 退出系统
     */
    @RequestMapping(value = "/login/exit", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    public Result exit(HttpRequest request) {
        String urlId = request.getString("url_id");
        if (StringUtils.isNotEmpty(urlId)) {
            TokenCache.getInstance().remove(urlId);
        }
        return new Result<>();
    }
}

管理员控制器：

/**
 * 管理员控制器
 */
@RestController
public class AdminController {

    @Resource(name = "adminService")
    private IAdminService adminService;

    /**
     * 管理员 查询管理员列表
     */
    @RequestMapping(value = "/admin/qryPage", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    @RoleAnnotation(types = {RoleEnum.admin})
    public ListResult qryPage(HttpRequest request) {
        Map 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("login_name")) {
            param.put("login_name", request.getString("login_name"));
        }
        if (request.containsKey("name")) {
            param.put("name", request.getString("name"));
        }
        return adminService.qryPage(param, pageNo, pageSize);
    }

    /**
     * 管理员 添加管理员
     */
    @RequestMapping(value = "/admin/add", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    @RoleAnnotation(types = {RoleEnum.admin})
    public Result insert(HttpRequest request) {
        Admin admin = new Admin();
        admin.setLoginName(request.getString("login_name"));
        admin.setName(request.getString("admin_name"));
        admin.setPwd(request.getString("login_name"));
        admin.setSex(request.getInteger("sex"));
        admin.setUpdateTime(new Date());
        return adminService.insert(admin, ImageUtil.stringToBytes(request.getString("admin_image")));
    }

    /**
     * 管理员 更新管理员
     */
    @RequestMapping(value = "/admin/update", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    @RoleAnnotation(types = {RoleEnum.admin})
    public Result update(HttpRequest request) {
        Admin admin = new Admin();
        admin.setLoginName(request.getString("login_name"));
        admin.setName(request.getString("admin_name"));
        admin.setPwd(request.getString("login_name"));
        admin.setSex(request.getInteger("sex"));
        admin.setUpdateTime(new Date());
        return adminService.update(admin, ImageUtil.stringToBytes(request.getString("admin_image")));
    }

    /**
     * 管理员 删除管理员
     */
    @RequestMapping(value = "/admin/del", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
    @RoleAnnotation(types = {RoleEnum.admin})
    public Result del(HttpRequest request) {
        List adminIdList = new ArrayList<>();
        JSONArray array = request.getJSONArray("admin_id_list");
        for (int i = 0; i < array.size(); i++) {
            adminIdList.add(array.getString(i));
        }
        return adminService.del(adminIdList);
    }
}