getGroupTree 修改

src/main/java/com/yunhai/bschclassmanage/controller/api/SchsystemController.java

@@ -55,13 +55,12 @@ public class SchsystemController {
                 throw new DException("当前学校管理员未关联有效的学校");
             }
         } else { // 超管
-            if (schId == null || schId <= 0) {
+            if (schId == null || schId < 0) {
                 throw new DException("学校ID不能为空且必须为正整数");
             }
             targetSchId = schId;
         }
 
-
         return schBinSchsystemService.getAcademicStageSchsystemList(targetSchId);
     }