fix自定义列

module_kzks/src/main/java/org/jeecg/modules/customColumns/controller/CustomColumnsController.java

@@ -57,9 +57,12 @@ public class CustomColumnsController extends JeecgController<CustomColumns, ICus
 		 Wrapper<CustomColumns> queryWrapper = new QueryWrapper<>(customColumns);
 		 CustomColumns customColumns1 = customColumnsService.getOne(queryWrapper);
 
-		 String checkedValues = customColumns1.getCheckedValues();
-		 String[] checkedValue = checkedValues.split(",");
-
+		 String checkedValues;
+		 String[] checkedValue = new String[0];
+		 if(customColumns1!=null){
+			 checkedValues = customColumns1.getCheckedValues();
+			 checkedValue = checkedValues.split(",");
+		 }
 		 return checkedValue;
 	 }