update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/CourseScheduleServiceImpl.java

@@ -5140,13 +5140,16 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
 			actualTeacherIds.addAll(courseSchedules.stream().map(e -> e.getOperatorId()).collect(Collectors.toSet()));
 			Set<Integer> schoolIds = courseSchedules.stream().map(e -> e.getSchoolId()).collect(Collectors.toSet());
 			Map<Integer, String> actualTeacherMap = getMap("sys_user", "id_", "real_name_", actualTeacherIds, Integer.class, String.class);
-			Map<Integer, String> schoolMap = getMap("school", "id_", "name_", schoolIds, Integer.class, String.class);
-			courseSchedules.forEach(e->{
+			Map<Integer, String> schoolMap = new HashMap<>();
+			if(schoolIds != null && schoolIds.size() > 0){
+				schoolMap = getMap("school", "id_", "name_", schoolIds, Integer.class, String.class);
+			}
+			for (CourseScheduleAuditDetailDto e : courseSchedules) {
 				e.setTeacherName(actualTeacherMap.get(e.getTeacherId()));
 				e.setActualTeacherName(actualTeacherMap.get(e.getActualTeacherId()));
 				e.setSchoolName(schoolMap.get(e.getSchoolId()));
 				e.setOperatorName(actualTeacherMap.get(e.getOperatorId()));
-			});
+			}
 			return courseSchedules;
 		}
 		return null;