update

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

@@ -1096,7 +1096,7 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
         //如果学员已经在某些班级，
         Boolean isExistClassGroup = classGroupStudentMapperDao.existByClassGroupIds(classGroupIdListStr,studentId);
         if(isExistClassGroup){
-            throw new BizException("操作失败：学员已存在");
+            return true;
         }
 		List<ClassGroup> classGroupList = classGroupDao.findClassGroupByIds(classGroupIdListStr);
 		if (classGroupList == null || classGroupList.size() == 0) {