submit

zhongzheng-system/src/main/java/com/zhongzheng/modules/grade/service/impl/ClassGradeServiceImpl.java

@@ -284,7 +284,7 @@ public class ClassGradeServiceImpl extends ServiceImpl<ClassGradeMapper, ClassGr
                         }
                     }
                     return true;
-                }).sorted(Comparator.comparing(ClassGradeVo::getClassStatus,Comparator.reverseOrder())
+                }).sorted(Comparator.comparing(ClassGradeVo::getClassStatus,Comparator.nullsLast(Integer::compareTo).reversed())
                         .thenComparing(ClassGradeVo::getCreateTime,Comparator.reverseOrder())).collect(Collectors.toList());
                 item.setGradeList(collect);
             }