学之思开源考试系统是一款 java + vue 的前后端分离的考试系统主要优点是开发部署简单快捷界面设计友好代码结构清晰

package com.mindskip.xzs.service.impl; import com.mindskip.xzs.domain.*; import com.mindskip.xzs.domain.enums.ExamPaperAnswerStatusEnum; import com.mindskip.xzs.domain.enums.ExamPaperTypeEnum; import com.mindskip.xzs.domain.enums.QuestionTypeEnum; import com.mindskip.xzs.domain.exam.ExamPaperTitleItemObject; import com.mindskip.xzs.domain.other.KeyValue; import com.mindskip.xzs.domain.other.ExamPaperAnswerUpdate; import com.mindskip.xzs.domain.task.TaskItemAnswerObject; import com.mindskip.xzs.repository.*; import com.mindskip.xzs.repository.ExamPaperAnswerMapper; import com.mindskip.xzs.repository.ExamPaperMapper; import com.mindskip.xzs.repository.QuestionMapper; import com.mindskip.xzs.repository.TaskExamCustomerAnswerMapper; import com.mindskip.xzs.service.ExamPaperAnswerService; import com.mindskip.xzs.service.ExamPaperQuestionCustomerAnswerService; import com.mindskip.xzs.service.TextContentService; import com.mindskip.xzs.utility.DateTimeUtil; import com.mindskip.xzs.utility.ExamUtil; import com.mindskip.xzs.utility.JsonUtil; import com.mindskip.xzs.viewmodel.student.exam.ExamPaperSubmitItemVM; import com.mindskip.xzs.viewmodel.student.exam.ExamPaperSubmitVM; import com.mindskip.xzs.viewmodel.student.exampaper.ExamPaperAnswerPageVM; import com.github.pagehelper.PageHelper; import com.github.pagehelper.PageInfo; import com.mindskip.xzs.domain.*; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.stream.Collectors; @Service public class ExamPaperAnswerServiceImpl extends BaseServiceImpl<ExamPaperAnswer> implements ExamPaperAnswerService { private final ExamPaperAnswerMapper examPaperAnswerMapper; private final ExamPaperMapper examPaperMapper; private final TextContentService textContentService; private final QuestionMapper questionMapper; private final ExamPaperQuestionCustomerAnswerService examPaperQuestionCustomerAnswerService; private final TaskExamCustomerAnswerMapper taskExamCustomerAnswerMapper; @Autowired public ExamPaperAnswerServiceImpl(ExamPaperAnswerMapper examPaperAnswerMapper, ExamPaperMapper examPaperMapper, TextContentService textContentService, QuestionMapper questionMapper, ExamPaperQuestionCustomerAnswerService examPaperQuestionCustomerAnswerService, TaskExamCustomerAnswerMapper taskExamCustomerAnswerMapper) { super(examPaperAnswerMapper); this.examPaperAnswerMapper = examPaperAnswerMapper; this.examPaperMapper = examPaperMapper; this.textContentService = textContentService; this.questionMapper = questionMapper; this.examPaperQuestionCustomerAnswerService = examPaperQuestionCustomerAnswerService; this.taskExamCustomerAnswerMapper = taskExamCustomerAnswerMapper; } @Override public PageInfo<ExamPaperAnswer> studentPage(ExamPaperAnswerPageVM requestVM) { return PageHelper.startPage(requestVM.getPageIndex(), requestVM.getPageSize(), "id desc").doSelectPageInfo(() -> examPaperAnswerMapper.studentPage(requestVM)); } @Override public ExamPaperAnswerInfo calculateExamPaperAnswer(ExamPaperSubmitVM examPaperSubmitVM, User user) { ExamPaperAnswerInfo examPaperAnswerInfo = new ExamPaperAnswerInfo(); Date now = new Date(); ExamPaper examPaper = examPaperMapper.selectByPrimaryKey(examPaperSubmitVM.getId()); ExamPaperTypeEnum paperTypeEnum = ExamPaperTypeEnum.fromCode(examPaper.getPaperType()); //任务试卷只能做一次 if (paperTypeEnum == ExamPaperTypeEnum.Task) { ExamPaperAnswer examPaperAnswer = examPaperAnswerMapper.getByPidUid(examPaperSubmitVM.getId(), user.getId()); if (null != examPaperAnswer) return null; } String frameTextContent = textContentService.selectById(examPaper.getFrameTextContentId()).getContent(); List<ExamPaperTitleItemObject> examPaperTitleItemObjects = JsonUtil.toJsonListObject(frameTextContent, ExamPaperTitleItemObject.class); List<Integer> questionIds = examPaperTitleItemObjects.stream().flatMap(t -> t.getQuestionItems().stream().map(q -> q.getId())).collect(Collectors.toList()); List<Question> questions = questionMapper.selectByIds(questionIds); //将题目结构的转化为题目答案 List<ExamPaperQuestionCustomerAnswer> examPaperQuestionCustomerAnswers = examPaperTitleItemObjects.stream() .flatMap(t -> t.getQuestionItems().stream() .map(q -> { Question question = questions.stream().filter(tq -> tq.getId().equals(q.getId())).findFirst().get(); ExamPaperSubmitItemVM customerQuestionAnswer = examPaperSubmitVM.getAnswerItems().stream() .filter(tq -> tq.getQuestionId().equals(q.getId())) .findFirst() .orElse(null); return ExamPaperQuestionCustomerAnswerFromVM(question, customerQuestionAnswer, examPaper, q.getItemOrder(), user, now); }) ).collect(Collectors.toList()); ExamPaperAnswer examPaperAnswer = ExamPaperAnswerFromVM(examPaperSubmitVM, examPaper, examPaperQuestionCustomerAnswers, user, now); examPaperAnswerInfo.setExamPaper(examPaper); examPaperAnswerInfo.setExamPaperAnswer(examPaperAnswer); examPaperAnswerInfo.setExamPaperQuestionCustomerAnswers(examPaperQuestionCustomerAnswers); return examPaperAnswerInfo; } @Override @Transactional public String judge(ExamPaperSubmitVM examPaperSubmitVM) { ExamPaperAnswer examPaperAnswer = examPaperAnswerMapper.selectByPrimaryKey(examPaperSubmitVM.getId()); List<ExamPaperSubmitItemVM> judgeItems = examPaperSubmitVM.getAnswerItems().stream().filter(d -> d.getDoRight() == null).collect(Collectors.toList()); List<ExamPaperAnswerUpdate> examPaperAnswerUpdates = new ArrayList<>(judgeItems.size()); Integer customerScore = examPaperAnswer.getUserScore(); Integer questionCorrect = examPaperAnswer.getQuestionCorrect(); for (ExamPaperSubmitItemVM d : judgeItems) { ExamPaperAnswerUpdate examPaperAnswerUpdate = new ExamPaperAnswerUpdate(); examPaperAnswerUpdate.setId(d.getId()); examPaperAnswerUpdate.setCustomerScore(ExamUtil.scoreFromVM(d.getScore())); boolean doRight = examPaperAnswerUpdate.getCustomerScore().equals(ExamUtil.scoreFromVM(d.getQuestionScore())); examPaperAnswerUpdate.setDoRight(doRight); examPaperAnswerUpdates.add(examPaperAnswerUpdate); customerScore += examPaperAnswerUpdate.getCustomerScore(); if (examPaperAnswerUpdate.getDoRight()) { ++questionCorrect; } } examPaperAnswer.setUserScore(customerScore); examPaperAnswer.setQuestionCorrect(questionCorrect); examPaperAnswer.setStatus(ExamPaperAnswerStatusEnum.Complete.getCode()); examPaperAnswerMapper.updateByPrimaryKeySelective(examPaperAnswer); examPaperQuestionCustomerAnswerService.updateScore(examPaperAnswerUpdates); ExamPaperTypeEnum examPaperTypeEnum = ExamPaperTypeEnum.fromCode(examPaperAnswer.getPaperType()); switch (examPaperTypeEnum) { case Task: //任务试卷批改完成后，需要更新任务的状态 ExamPaper examPaper = examPaperMapper.selectByPrimaryKey(examPaperAnswer.getExamPaperId()); Integer taskId = examPaper.getTaskExamId(); Integer userId = examPaperAnswer.getCreateUser(); TaskExamCustomerAnswer taskExamCustomerAnswer = taskExamCustomerAnswerMapper.getB