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				@@ -413,7 +413,7 @@ public class StudentServeServiceImpl implements StudentServeService { 
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				             } 
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				         } 
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				-        if(CollectionUtils.isEmpty(results)){ 
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				+        if(!CollectionUtils.isEmpty(results)){ 
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				             studentExtracurricularExercisesSituationDao.deleteByMonday(monDayDate.toString()); 
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				             BigDecimal currentPage1=BigDecimal.ONE, 
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				                     pageSize1=new BigDecimal(10000), 
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				@@ -661,12 +661,15 @@ public class StudentServeServiceImpl implements StudentServeService { 
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				     public Set<Integer> getStudentWithCourse(Long courseId) { 
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				         CourseSchedule courseSchedule = courseScheduleDao.get(courseId); 
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				         if(Objects.isNull(courseSchedule)){ 
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				-            throw new BizException("课程不存在"); 
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				+            return new HashSet<>(); 
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				         } 
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				         LocalDate nowDate = LocalDateTime.ofInstant(courseSchedule.getClassDate().toInstant(), DateUtil.zoneId).toLocalDate(); 
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				         LocalDate monDayDate = nowDate.with(DateUtil.weekFields.dayOfWeek(), DayOfWeek.MONDAY.getValue()); 
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				-        studentExtracurricularExercisesSituationDao.findServiceWithCourse(monDayDate.toString(), courseId); 
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				-        return null; 
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				+        List<StudentExtracurricularExercisesSituation> serviceWithCourse = studentExtracurricularExercisesSituationDao.findServiceWithCourse(monDayDate.toString(), courseId); 
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				+        if(CollectionUtils.isEmpty(serviceWithCourse)){ 
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				+            return new HashSet<>(); 
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				+        } 
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				+        return serviceWithCourse.stream().map(StudentExtracurricularExercisesSituation::getStudentId).collect(Collectors.toSet()); 
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				     } 
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				 } 
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