课程设计项目，基于SpringBoot+Vue 在线考试系统

package dhu.cst.ExamSystem.service.Impl; import com.alibaba.fastjson.JSON; import dhu.cst.ExamSystem.common.AccuracyResult; import dhu.cst.ExamSystem.common.RateResult; import dhu.cst.ExamSystem.dao.*; import dhu.cst.ExamSystem.entity.*; import dhu.cst.ExamSystem.service.IQuestionService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.domain.Page; import org.springframework.data.domain.PageRequest; import org.springframework.data.domain.Pageable; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; @Service("QuestionService") @Transactional public class QuestionServiceImpl implements IQuestionService { @Autowired QuestionRepository questionRepository; @Autowired PdetailRepository pdetailRepository; @Autowired ExamRepository examRepository; @Autowired PaperRepository paperRepository; @Autowired PointRepository pointRepository; @Autowired AnswerRepository answerRepository; @Override public List<String> getbank(long subjectId){ return questionRepository.getbanks(subjectId); } @Override public List<Question> getquestion(long subjectId,Integer page,Integer size){ Pageable pageable = PageRequest.of(page-1,size); Page<Question> qp = questionRepository.findBySubjectIdAndPointIdIsNotNull(subjectId,pageable); return qp.getContent(); } @Override public Map integratedquery(String bankName,long pointId,long type,Integer page,Integer size){ Pageable pageable = PageRequest.of(page-1,size); System.out.println(type); Page<Question> pq = questionRepository.integratedquery(bankName,pointId,type,pageable); Map m = new HashMap(); Integer qnum = questionRepository.integratedquery(bankName,pointId,type); m.put("questions",pq.getContent()); m.put("quesnum",qnum); return m; } @Override public Map getquefromexam(long paperId,Integer page,Integer size){ Pageable pageable = PageRequest.of(page-1,size); Page<Pdetail> pd = pdetailRepository.findByPaperIdOrderByQuestionType(paperId,pageable); Map m = new HashMap(); int qnum = pdetailRepository.countByPaperId(paperId); m.put("questions",pd.getContent()); m.put("quesnum",qnum); return m; } @Override public List<Question> getquestionbybank(String bankName,Integer page,Integer size){ Pageable pageable = PageRequest.of(page-1,size); Page<Question> qp = questionRepository.findByBankNameAndPointIdIsNotNull(bankName,pageable); return qp.getContent(); } @Override public List<Question> getquestionbypoint(long subjectId,long pointId,Integer page,Integer size){ Pageable pageable = PageRequest.of(page-1,size); Page<Question> qp = questionRepository.findBySubjectIdAndPointId(subjectId,pointId,pageable); return qp.getContent(); } @Override public List<Question> getquestionbytype(long subjectId,long type,Integer page,Integer size){ Pageable pageable = PageRequest.of(page-1,size); Page<Question> qp = questionRepository.findBySubjectIdAndQuestionType(subjectId,type,pageable); return qp.getContent(); } @Override public List<Pdetail> getquefromexambypoint(long paperId,long pointId,Integer page,Integer size){ Pageable pageable = PageRequest.of(page-1,size); Page<Pdetail> pd = pdetailRepository.findByPaperIdAndPointIdOrderByQuestionType(paperId,pointId,pageable); return pd.getContent(); } @Override public List<Pdetail> getquefromexambytype(long paperId,long type,Integer page,Integer size){ Pageable pageable = PageRequest.of(page-1,size); Page<Pdetail> pd = pdetailRepository.findByPaperIdAndQuestionTypeOrderByQuestionType(paperId,type,pageable); return pd.getContent(); } @Override public Map addquestion(String queinfo){ Map m = new HashMap(); List<Question> lquestion = JSON.parseArray(JSON.parseObject(queinfo).getString("question"), Question.class); if(lquestion.size()!=0){ Question question = lquestion.get(0); String opt = question.getOpt(); questionRepository.save(question); m.put("msg","Operating successfully!"); } return m; } @Override public boolean saveall(List<Question> lq){ questionRepository.saveAll(lq); return true; } @Override public Map delquestion(long questionid){ Map m = new HashMap(); questionRepository.deleteByQuestionId(questionid); m.put("msg","Delete successfully!"); return m; } @Override public boolean addbank(long subjectId,String bankname){ questionRepository.savebank(subjectId,bankname); return true; } @Override public boolean changebankname(String oldname,String newname){ questionRepository.updatebankname(oldname,newname); return true; } @Override public boolean delbank(String bankname){ questionRepository.deleteByBankName(bankname); return true; } @Override public Map addquestiontoexam(long questionId, long paperId){ try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } Map m = new HashMap(); List<Pdetail> pdl = pdetailRepository.findByPaperIdAndQuestionId(paperId,questionId); if(pdl.size()!=0){ m.put("msg","请勿重复添加"); return m; } List<Question> que = questionRepository.findByQuestionIdAndPointIdIsNotNull(questionId); Map n = getquestionnum(paperId); switch((int) que.get(0).getQuestionType()){ case 0: if(n.get("single_added")==n.get("single_total")){ m.put("msg","单选题数量已超出范围，添加失败！"); return m; } break; case 1: if(n.get("multiple_added")==n.get("multiple_total")){ m.put("msg","多选题数量已超出范围，添加失败！"); return m; } break; case 2: if(n.get("blank_added")==n.get("blank_total")){ m.put("msg","填空题数量已超出范围，添加失败！"); return m; } break; } if(que.size()!=0){ Question question = que.get(0); Pdetail pd = new Pdetail(); pd.setPaperId(paperId); pd.setQuestionId(questionId); pd.setQuestionType(question.getQuestionType()); pd.setQuestionName(question.getQuestionName()); pd.setOpt(question.getOpt()); pd.setCorAnswer(question.getQuestionAnswer()); pd.setPointId(question.getPointId()); pdetailRepository.save(pd); n = getquestionnum(paperId); System.out.println(n.get("single_added")); switch((int) pd.getQuestionType()){ case 0: m.put("msg","添加成功! 单选题："+n.get("single_added")+"/"+n.get("single_total")); break; case 1: m.put("msg","添加成功! 多选题："+n.get("multiple_added")+"/"+n.get("multiple_total")); break; case 2: m.put("msg","添加成功! 填空题："+n.get("blank_added")+"/"+n.get("blank_total")); break; } } return m; } @Override public Map delquefromexam(long questionid, long paperid){