--no commit message

com.zrqx.newbook/src/main/java/com/zrqx/newbook/bg/controller/categories/CategoriesController.java

@@ -34,7 +34,7 @@ public class CategoriesController {
         PageParam pageParam = new PageParam();
         pageParam.setPageSize(99999);
         List<BookCategories> list = service.queryCriteria(pageParam).getList();
-        List<BookCategoriesVo> voList = Copy.copyList(list , BookCategoriesVo.class, obj -> obj.getParentId().equals("0"));
+        List<BookCategoriesVo> voList = Copy.copyList(list , BookCategoriesVo.class, obj -> obj.getParentId().toString().equals("0"));
         tree(list,voList);
         return CallBack.success(voList);
     }