这篇文章主要讲解了“Java怎么实现在线考试云平台”，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习“Java怎么实现在线考试云平台”吧！
考试流程：
用户前台注册成为学生
管理员后台添加老师，系统将该用户角色上升为老师
老师登录，添加考试,添加题目，发布考试
考生登录前台参加考试，交卷
老师后台批改试卷，查看成绩
考试查看成绩
练习流程：
考生登录前台参加练习，练习完自动判分，记录错题
考生查看成绩，查看错题
用户登录操作业务：
@RestController@Api(tags = "User APIs")@RequestMapping("/user")public class UserController { @Autowired private UserService userService; @PostMapping("/register") @ApiOperation("注册") ResultVO<User> register(@RequestBody RegisterDTO registerDTO) { ResultVO<User> resultVO; // 注册信息的完善，还有唯一性校验没(用户名、邮箱和手机号)已经在user表中通过unique来设置了 User user = userService.register(registerDTO); if (user != null) { // 注册成功 resultVO = new ResultVO<>(ResultEnum.REGISTER_SUCCESS.getCode(), ResultEnum.REGISTER_SUCCESS.getMessage(), user); } else { resultVO = new ResultVO<>(ResultEnum.REGISTER_FAILED.getCode(), ResultEnum.REGISTER_FAILED.getMessage(), null); } return resultVO; } @PostMapping("/login") @ApiOperation("根据用户名或邮箱登录,登录成功返回token") ResultVO<String> login(@RequestBody LoginQo loginQo) { // 这里不用手机号是因为手机号和用户名难以进行格式区分，而用户名和 // 用户登录 ResultVO<String> resultVO; String token = userService.login(loginQo); if (token != null) { // 登录成功 resultVO = new ResultVO<>(ResultEnum.LOGIN_SUCCESS.getCode(), ResultEnum.LOGIN_SUCCESS.getMessage(), token); } else { // 登录失败 resultVO = new ResultVO<>(ResultEnum.LOGIN_FAILED.getCode(), ResultEnum.LOGIN_FAILED.getMessage(), null); } return resultVO; } @GetMapping("/user-info") @ApiOperation("获取用户信息") ResultVO<UserVo> getUserInfo(HttpServletRequest request) { String userId = (String) request.getAttribute("user_id"); UserVo userVo = userService.getUserInfo(userId); return new ResultVO<>(ResultEnum.GET_INFO_SUCCESS.getCode(), ResultEnum.GET_INFO_SUCCESS.getMessage(), userVo); } @GetMapping("/info") @ApiOperation("获取用户的详细信息，包括个人信息页面和操作权限") ResultVO<UserInfoVo> getInfo(HttpServletRequest request) { System.out.println("进入/user/info的获取用户信息的接口"); String userId = (String) request.getAttribute("user_id"); UserInfoVo userInfoVo = userService.getInfo(userId); return new ResultVO<>(ResultEnum.GET_INFO_SUCCESS.getCode(), ResultEnum.GET_INFO_SUCCESS.getMessage(), userInfoVo); } @GetMapping("/test") @ApiOperation("测试接口") String test(HttpServletRequest request) { // 下面这两个属性都是登录拦截器从token中解析地，当用户名不对或者token过期时是走不到接口内的 String userId = (String) request.getAttribute("user_id"); String username = (String) request.getAttribute("username"); System.out.println("用户id：" + userId); System.out.println("用户名：" + username); return "用户id：" + userId + "\n用户名：" + username; }}问题信息业务操作：
@RestController@Api(tags = "Exam APIs")@RequestMapping("/exam")public class ExamController { @Autowired private ExamService examService; @GetMapping("/question/all") @ApiOperation("获取所有问题的列表") ResultVO<List<QuestionVo>> getQuestionAll() { ResultVO<List<QuestionVo>> resultVO; try { List<QuestionVo> questionAll = examService.getQuestionAll(); resultVO = new ResultVO<>(0, "获取全部问题列表成功", questionAll); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "获取全部问题列表失败", null); } return resultVO; } @PostMapping("/question/update") @ApiOperation("更新问题") ResultVO<QuestionVo> questionUpdate(@RequestBody QuestionVo questionVo) { // 完成问题的更新 System.out.println(questionVo); try { QuestionVo questionVoResult = examService.updateQuestion(questionVo); return new ResultVO<>(0, "更新问题成功", questionVoResult); } catch (Exception e) { e.printStackTrace(); return new ResultVO<>(-1, "更新问题失败", null); } } @PostMapping("/question/create") @ApiOperation("创建问题") ResultVO<String> questionCreate(@RequestBody QuestionCreateSimplifyVo questionCreateSimplifyVo, HttpServletRequest request) { QuestionCreateVo questionCreateVo = new QuestionCreateVo(); // 把能拷贝过来的属性都拷贝过来 BeanUtils.copyProperties(questionCreateSimplifyVo, questionCreateVo); // 设置创建者信息 String userId = (String) request.getAttribute("user_id"); questionCreateVo.setQuestionCreatorId(userId); System.out.println(questionCreateVo); try { examService.questionCreate(questionCreateVo); return new ResultVO<>(0, "问题创建成功", null); } catch (Exception e) { e.printStackTrace(); return new ResultVO<>(-1, "创建问题失败", null); } } @GetMapping("/question/selection") @ApiOperation("获取问题分类的相关选项") ResultVO<QuestionSelectionVo> getSelections() { QuestionSelectionVo questionSelectionVo = examService.getSelections(); if (questionSelectionVo != null) { return new ResultVO<>(0, "获取问题分类选项成功", questionSelectionVo); } else { return new ResultVO<>(-1, "获取问题分类选项失败", null); } } @GetMapping("/question/detail/{id}") @ApiOperation("根据问题的id获取问题的详细信息") ResultVO<QuestionDetailVo> getQuestionDetail(@PathVariable String id) { // 根据问题id获取问题的详细信息 System.out.println(id); ResultVO<QuestionDetailVo> resultVO; try { QuestionDetailVo questionDetailVo = examService.getQuestionDetail(id); resultVO = new ResultVO<>(0, "获取问题详情成功", questionDetailVo); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "获取问题详情失败", null); } return resultVO; } @GetMapping("/all") @ApiOperation("获取全部考试的列表") ResultVO<List<ExamVo>> getExamAll() { // 需要拼接前端需要的考试列表对象 ResultVO<List<ExamVo>> resultVO; try { List<ExamVo> examVos = examService.getExamAll(); resultVO = new ResultVO<>(0, "获取全部考试的列表成功", examVos); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "获取全部考试的列表失败", null); } return resultVO; } @GetMapping("/question/type/list") @ApiOperation("获取问题列表，按照单选、多选和判断题分类返回") ResultVO<ExamQuestionTypeVo> getExamQuestionTypeList() { // 获取问题的分类列表 ResultVO<ExamQuestionTypeVo> resultVO; try { ExamQuestionTypeVo examQuestionTypeVo = examService.getExamQuestionType(); resultVO = new ResultVO<>(0, "获取问题列表成功", examQuestionTypeVo); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "获取问题列表失败", null); } return resultVO; } @PostMapping("/create") @ApiOperation("创建考试") ResultVO<Exam> createExam(@RequestBody ExamCreateVo examCreateVo, HttpServletRequest request) { // 从前端传参数过来，在这里完成考试的入库 ResultVO<Exam> resultVO; String userId = (String) request.getAttribute("user_id"); try { Exam exam = examService.create(examCreateVo, userId); resultVO = new ResultVO<>(0, "创建考试成功", exam); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "创建考试失败", null); } return resultVO; } @PostMapping("/update") @ApiOperation("更新考试") ResultVO<Exam> updateExam(@RequestBody ExamVo examVo, HttpServletRequest request) { // 从前端传参数过来，在这里完成考试的入库 ResultVO<Exam> resultVO; String userId = (String) request.getAttribute("user_id"); try { Exam exam = examService.update(examVo, userId); resultVO = new ResultVO<>(0, "更新考试成功", exam); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "更新考试失败", null); } return resultVO; } @GetMapping("/card/list") @ApiOperation("获取考试列表，适配前端卡片列表") ResultVO<List<ExamCardVo>> getExamCardList() { // 获取考试列表卡片 ResultVO<List<ExamCardVo>> resultVO; try { List<ExamCardVo> examCardVoList = examService.getExamCardList(); resultVO = new ResultVO<>(0, "获取考试列表卡片成功", examCardVoList); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "获取考试列表卡片失败", null); } return resultVO; } @GetMapping("/detail/{id}") @ApiOperation("根据考试的id，获取考试详情") ResultVO<ExamDetailVo> getExamDetail(@PathVariable String id) { // 根据id获取考试详情 ResultVO<ExamDetailVo> resultVO; try { ExamDetailVo examDetail = examService.getExamDetail(id); resultVO = new ResultVO<>(0, "获取考试详情成功", examDetail); } catch (Exception e) { resultVO = new ResultVO<>(-1, "获取考试详情失败", null); } return resultVO; } @PostMapping("/finish/{examId}") @ApiOperation("根据用户提交的答案对指定id的考试判分") ResultVO<ExamRecord> finishExam(@PathVariable String examId, @RequestBody HashMap<String, List<String>> answersMap, HttpServletRequest request) { ResultVO<ExamRecord> resultVO; try { // 拦截器里设置上的用户id String userId = (String) request.getAttribute("user_id"); // 下面根据用户提交的信息进行判分,返回用户的得分情况 ExamRecord examRecord = examService.judge(userId, examId, answersMap); resultVO = new ResultVO<>(0, "考卷提交成功", examRecord); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "考卷提交失败", null); } return resultVO; } @GetMapping("/record/list") @ApiOperation("获取当前用户的考试记录") ResultVO<List<ExamRecordVo>> getExamRecordList(HttpServletRequest request) { ResultVO<List<ExamRecordVo>> resultVO; try { // 拦截器里设置上的用户id String userId = (String) request.getAttribute("user_id"); // 下面根据用户账号拿到他(她所有的考试信息)，注意要用VO封装下 List<ExamRecordVo> examRecordVoList = examService.getExamRecordList(userId); resultVO = new ResultVO<>(0, "获取考试记录成功", examRecordVoList); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "获取考试记录失败", null); } return resultVO; } @GetMapping("/record/detail/{recordId}") @ApiOperation("根据考试记录id获取考试记录详情") ResultVO<RecordDetailVo> getExamRecordDetail(@PathVariable String recordId) { ResultVO<RecordDetailVo> resultVO; try { RecordDetailVo recordDetailVo = examService.getRecordDetail(recordId); resultVO = new ResultVO<>(0, "获取考试记录详情成功", recordDetailVo); } catch (Exception e) { e.printStackTrace(); resultVO = new ResultVO<>(-1, "获取考试记录详情失败", null); } return resultVO; }}文件上传业务控制器：
/*********************************************************** * @note : 文件上传下载的接口,由于Swagger的问题导致在SwaggerUI * 里测试不成功，实际上前端是完全没有问题的 * * 为了支持Ajax请求和响应，最简单的解决方案返回一个ResponseEntity。 * * 以下示例演示了上传文件的三种可能方式： * * 1. 单文件上传 - `MultipartFile` * * 2. 多文件上传 - `MultipartFile []` * * 3. 将文件上传到模型 - `@ModelAttribute`@RestController@Api(tags = "Upload And Download APIs")@RequestMapping("/file")@Slf4jpublic class UploadDownloadController { // @Autowired// AITestConfig aiTestConfig;//// @PostMapping("/upload/single")// @ApiOperation("单文件上传")// public String uploadFile(@RequestParam("file") MultipartFile uploadfile) {// return FileTransUtil.uploadFile(uploadfile, "/root/" + File.separator + uploadfile.getOriginalFilename());// } @ApiOperation("单文件上传,支持同时传入参数") @PostMapping("/api/upload/singleAndparas") public String uploadFileSingle(@RequestParam("dir") String dir, @RequestParam("file") MultipartFile uploadfile) { return FileTransUtil.uploadFile(uploadfile, dir); } @ApiOperation("单文件上传,支持同时传入参数,Model") @PostMapping("/upload/single/model") public String singleUploadFileModel(@ModelAttribute("model") UploadModel2 model) { return FileTransUtil.uploadFile(model.getFile(), model.getDir()); } @ApiOperation("多文件上传,支持同时传入参数") @PostMapping("upload/multiAndparas") public String uploadFileMulti(@RequestParam("dir") String dir, @RequestParam("files") MultipartFile[] uploadfiles) { return FileTransUtil.uploadFiles(uploadfiles, dir); } @ApiOperation("多文件上传,支持同时传入参数") @PostMapping(value = "/upload/multi/model") public String multiUploadFileModel(@ModelAttribute(("model")) UploadModel model) { return FileTransUtil.uploadFiles(model.getFiles(), model.getDir()); } @ApiOperation("Get下载文件") @GetMapping(value = "/download/get") public ResponseEntity<InputStreamResource> downloadFileGet(@RequestParam String filePath) throws IOException { return FileTransUtil.downloadFile(filePath); } @ApiOperation("Post下载文件") @PostMapping(value = "/download/post") public ResponseEntity<InputStreamResource> downloadFilePost(@RequestBody DownloadQo downloadQo) throws IOException { return FileTransUtil.downloadFile(downloadQo.getPath()); }}感谢各位的阅读，以上就是“Java怎么实现在线考试云平台”的内容了，经过本文的学习后，相信大家对Java怎么实现在线考试云平台这一问题有了更深刻的体会，具体使用情况还需要大家实践验证。这里是编程网，小编将为大家推送更多相关知识点的文章，欢迎关注！
