基于SpringBoot+VUE（PC端+小程序端）的智能在线考试系统毕业设计

@Service
public class TaskExamServiceImpl extends BaseServiceImpl<TaskExam> implements TaskExamService {
    protected final static ModelMapper modelMapper = ModelMapperSingle.Instance();
    private final TaskExamMapper taskExamMapper;
    private final TextContentService textContentService;
    private final ExamPaperMapper examPaperMapper;
    @Autowired
    public TaskExamServiceImpl(TaskExamMapper taskExamMapper, TextContentService textContentService, ExamPaperMapper examPaperMapper) {
        super(taskExamMapper);
        this.taskExamMapper = taskExamMapper;
        this.textContentService = textContentService;
        this.examPaperMapper = examPaperMapper;
    }
    @Override
    public PageInfo<TaskExam> page(TaskPageRequestVM requestVM) {
        return PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() ->
                taskExamMapper.page(requestVM)
        );
    }
    @Override
    @Transactional
    public void edit(TaskRequestVM model, User user) {
        ActionEnum actionEnum = (model.getId() == null) ? ActionEnum.ADD : ActionEnum.UPDATE;
        TaskExam taskExam = null;
        if (actionEnum == ActionEnum.ADD) {
            Date now = new Date();
            taskExam = modelMapper.map(model, TaskExam.class);
            taskExam.setCreateUser(user.getId());
            taskExam.setCreateUserName(user.getUserName());
            taskExam.setCreateTime(now);
            taskExam.setDeleted(false);
            //保存任务结构
            TextContent textContent = textContentService.jsonConvertInsert(model.getPaperItems(), now, p -> {
                TaskItemObject taskItemObject = new TaskItemObject();
                taskItemObject.setExamPaperId(p.getId());
                taskItemObject.setExamPaperName(p.getName());
                return taskItemObject;
            });
            textContentService.insertByFilter(textContent);
            taskExam.setFrameTextContentId(textContent.getId());
            taskExamMapper.insertSelective(taskExam);
        } else {
            taskExam = taskExamMapper.selectByPrimaryKey(model.getId());
            modelMapper.map(model, taskExam);
            TextContent textContent = textContentService.selectById(taskExam.getFrameTextContentId());
            //清空试卷任务的试卷Id，后面会统一设置
            List<Integer> paperIds = JsonUtil.toJsonListObject(textContent.getContent(), TaskItemObject.class)
                    .stream()
                    .map(d -> d.getExamPaperId())
                    .collect(Collectors.toList());
            examPaperMapper.clearTaskPaper(paperIds);
            //更新任务结构
            textContentService.jsonConvertUpdate(textContent, model.getPaperItems(), p -> {
                TaskItemObject taskItemObject = new TaskItemObject();
                taskItemObject.setExamPaperId(p.getId());
                taskItemObject.setExamPaperName(p.getName());
                return taskItemObject;
            });
            textContentService.updateByIdFilter(textContent);
            taskExamMapper.updateByPrimaryKeySelective(taskExam);
        }
        //更新试卷的taskId
        List<Integer> paperIds = model.getPaperItems().stream().map(d -> d.getId()).collect(Collectors.toList());
        examPaperMapper.updateTaskPaper(taskExam.getId(), paperIds);
        model.setId(taskExam.getId());
    }
    @Override
    public TaskRequestVM taskExamToVM(Integer id) {
        TaskExam taskExam = taskExamMapper.selectByPrimaryKey(id);
        TaskRequestVM vm = modelMapper.map(taskExam, TaskRequestVM.class);
        TextContent textContent = textContentService.selectById(taskExam.getFrameTextContentId());
        List<ExamResponseVM> examResponseVMS = JsonUtil.toJsonListObject(textContent.getContent(), TaskItemObject.class).stream().map(tk -> {
            ExamPaper examPaper = examPaperMapper.selectByPrimaryKey(tk.getExamPaperId());
            ExamResponseVM examResponseVM = modelMapper.map(examPaper, ExamResponseVM.class);
            examResponseVM.setCreateTime(DateTimeUtil.dateFormat(examPaper.getCreateTime()));
            return examResponseVM;
        }).collect(Collectors.toList());
        vm.setPaperItems(examResponseVMS);
        return vm;
    }
    @Override
    public List<TaskExam> getByGradeLevel(Integer gradeLevel) {
        return taskExamMapper.getByGradeLevel(gradeLevel);
    }
}

@Service
public class AuthenticationServiceImpl implements AuthenticationService {
    private final UserService userService;
    private final SystemConfig systemConfig;
    @Autowired
    public AuthenticationServiceImpl(UserService userService, SystemConfig systemConfig) {
        this.userService = userService;
        this.systemConfig = systemConfig;
    }
    /**
     * @param username username
     * @param password password
     * @return boolean
     */
    @Override
    public boolean authUser(String username, String password) {
        User user = userService.getUserByUserName(username);
        return authUser(user, username, password);
    }
    @Override
    public boolean authUser(User user, String username, String password) {
        if (user == null) {
            return false;
        }
        String encodePwd = user.getPassword();
        if (null == encodePwd || encodePwd.length() == 0) {
            return false;
        }
        String pwd = pwdDecode(encodePwd);
        return pwd.equals(password);
    }
    @Override
    public String pwdEncode(String password) {
        return RsaUtil.rsaEncode(systemConfig.getPwdKey().getPublicKey(), password);
    }
    @Override
    public String pwdDecode(String encodePwd) {
        return RsaUtil.rsaDecode(systemConfig.getPwdKey().getPrivateKey(), encodePwd);
    }
}

<view class="exam-page">
  <view class="view-wrap">
    <view class="exam-count-down">{{remainTimeStr}}</view>
  </view>
  <view class="view-wrap-hidden">
  </view>
  <view>
    <view class="exam-name-title">
      <h1>{{form.name}}</h1>
    </view>
    <form bindsubmit='formSubmit'>
      <i-panel title="{{titleItem.name}}" wx:for="{{form.titleItems}}" wx:for-item="titleItem" wx:key="{{titleItem.name}}" i-class="exam-panel-title">
        <i-cell-group i-class="exam-cell">
          <i-cell wx:for="{{titleItem.questionItems}}" wx:key="{{titleItem.id}}" wx:for-item="questionItem">
            <view wx:if="{{questionItem.questionType === 1}}">
              <rich-text nodes="{{questionItem.itemOrder}}. {{questionItem.title}}" />
              <radio-group class="radio-group" name="{{questionItem.itemOrder}}_{{questionItem.id}}_{{questionItem.questionType}}">
                <label class="radio" wx:for="{{questionItem.items}}" wx:key="{{questionItem.prefix}}" wx:for-item="radioItem" class="exam-radio-item-label">
                  <radio color="#2d8cf0" value="{{radioItem.prefix}}" checked="{{radioItem.checked}}" class="exam-item-left" />
                  <rich-text nodes="{{radioItem.prefix}}. {{radioItem.content}}" class="exam-item-left" />
                </label>
              </radio-group>
            </view>
            <view wx:elif="{{questionItem.questionType === 2}}">
              <rich-text nodes="{{questionItem.itemOrder}}. {{questionItem.title}}" class="exam-item-left" style="line-height:35px" />
              <checkbox-group class="exam-item-left" style="margin-left:10px" name="{{questionItem.itemOrder}}_{{questionItem.id}}_{{questionItem.questionType}}">
                <label wx:for="{{questionItem.items}}" wx:key="{{questionItem.prefix}}" wx:for-item="radioItem" class="exam-radio-item-label">
                  <checkbox color="#2d8cf0" value="{{radioItem.prefix}}" checked="{{radioItem.checked}}" class="exam-item-left" />
                  <rich-text nodes="{{radioItem.prefix}}. {{radioItem.content}}" class="exam-item-left" />
                </label>
              </checkbox-group>
            </view>
            <view wx:elif="{{questionItem.questionType === 3}}">
              <rich-text nodes="{{questionItem.itemOrder}}. {{questionItem.title}}" class="exam-item-left" style="line-height:35px" />
              <radio-group class="radio-group" class="exam-item-left" style="margin-left:10px" name="{{questionItem.itemOrder}}_{{questionItem.id}}_{{questionItem.questionType}}">
                <label class="radio" wx:for="{{questionItem.items}}" wx:key="{{questionItem.prefix}}" wx:for-item="radioItem" class="exam-radio-item-label">
                  <radio color="#2d8cf0" value="{{radioItem.prefix}}" checked="{{radioItem.checked}}" class="exam-item-left" />
                  <rich-text nodes="{{radioItem.content}}" class="exam-item-left" />
                </label>
              </radio-group>
            </view>
            <view wx:elif="{{questionItem.questionType === 4}}">
              <rich-text nodes="{{questionItem.itemOrder}}. {{questionItem.title}}" />
              <view class="exam-input-contain" wx:for="{{questionItem.items}}" wx:key="{{questionItem.prefix}}" wx:for-item="inputItem" wx:for-index="idx">
                <view class="exam-input-contain-label">{{inputItem.prefix}}</view>
                <input class="exam-input-contain-content" maxlength="-1" name="{{questionItem.itemOrder}}_{{questionItem.id}}_{{questionItem.questionType}}_{{idx}}" />
              </view>
            </view>
            <view wx:else>
              <rich-text nodes="{{questionItem.itemOrder}}. {{questionItem.title}}" />
              <view class="exam-textarea-contain">
                <textarea placeholder="答案" maxlength="-1" name="{{questionItem.itemOrder}}_{{questionItem.id}}_{{questionItem.questionType}}"></textarea>
              </view>
            </view>
          </i-cell>
        </i-cell-group>
      </i-panel>
      <view>
        <button class="i-btn  i-btn-primary i-btn-square" form-type='submit'>提交</button>
      </view>
      <i-action-sheet visible="true" visible="{{timeOutShow}}" mask-closable="{{ false }}">
        <view slot="header" style="padding: 16px">
          <view class="exam-timeout-title">考试试卷结束，请提交试卷！</view>
          <button class="i-btn  i-btn-primary i-btn-square" form-type='submit'>提交</button>
        </view>
      </i-action-sheet>
    </form>
    <i-modal title="考试结果" visible="{{modalShow}}" bind:ok="returnRecord" bind:cancel="returnRecord">
      <view>得分：{{result}}</view>
    </i-modal>
    <i-spin size="large" fix wx:if="{{ spinShow }}"></i-spin>
    <i-message id="message" />
  </view>
</view>