add isError and isSuccess method

RuoYi

2022-09-12 07dda8f5d6315e5c373ac04ee32a97ea61f941d1

 src/main/java/com/ruoyi/common/utils/file/FileUploadUtils.java

@@ -193,7 +193,6 @@
                throw new InvalidExtensionException(allowedExtension, extension, fileName);

            }

        }



    }



    /**