基于Java实现考试管理系统

目录

• 项目简述
• 项目运行
• 项目技术
• 效果图展示
• 主要代码

@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<Token> 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<Token> check() {
        return new Result<>();
    }
    /**
     * token 续约
     */
    @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);
    }
    /**
     * 退出系统
     */
    @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
 */
@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<User> 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<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")));
    }
    /**
     * 更新用户密码
     */
    @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"));
    }
}

/**
 * 学生控制器
 */
@RestController
public class StudentController {
    @Resource(name = "studentService")
    private IStudentService studentService;
    /**
     * 管理员 查询学生列表
     */
    @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);
    }
}