fix bug

teachcloud-obe/src/main/java/com/qmth/teachcloud/obe/service/impl/TRBasicInfoServiceImpl.java

@@ -121,6 +121,10 @@ public class TRBasicInfoServiceImpl extends ServiceImpl<TRBasicInfoMapper, TRBas
         FinalScoreDto finalScoreDto = tcFinalScoreService.finalScoreScoreOverView(trBasicInfo.getExamId(), trBasicInfo.getCourseCode(), trBasicInfo.getPaperNumber(), trBasicInfo.getCultureProgramId(), trBasicInfo.getCourseId());
         Objects.requireNonNull(finalScoreDto, "未找到期末成绩分数信息");
 
+        if (finalScoreDto.getStudentCount() == 0) {
+            throw ExceptionResultEnum.ERROR.exception("成绩数据异常，未查询到学生，请检查");
+        }
+
         ReportScoreViewDto reportScoreViewDto = null;
         TCPaperStruct tcPaperStruct = tcPaperStructService.queryPaperStruct(trBasicInfo.getCultureProgramId(), trBasicInfo.getCourseId(), trBasicInfo.getPaperNumber());
         if (Objects.nonNull(tcPaperStruct) && Objects.nonNull(tcPaperStruct.getPaperStruct()) && Objects.nonNull(tcPaperStruct.getTotalScore())) {