问题描述
我有一个在Visual Studio 2017中创建的ASP.NET Web应用程序.
I have an ASP.NET web application, created in Visual Studio 2017.
应用程序中有一个表单,用户可以在其中上传文件.上传文件后,我将其处理并将其保存在文件系统中:
In the application there is a form, where the users can upload files. When files are uploaded, I process them and I save them on the filesystem:
var photo = Request.Files["file"];
photo.SaveAs("D:\\home");
一切在本地都能正常运行,但是当我在Azure App Services上部署应用程序时,一切都无法正常工作.
Everything works perfect locally, but it's not working when I deploy the App on Azure App Services.
我在Azure上读到了该路径
I read that, on Azure, the path
D:\home
应该是可写的.
但是当我尝试代码时,出现此错误:
But when I try the code I get this error:
Access to the path 'd:\home\test_image.JPG' is denied.
推荐答案
使用%TEMP%
,它在Azure App Service(Windows)上解析为d:\local
.那是本地计算机磁盘,而不是网络存储,因此速度大大提高.在应用重新启动时会被清除,因此相应地进行编码.
Use %TEMP%
, which on Azure App Service (Windows) resolves to d:\local
. That's the local machine disk, not network storage, so significantly faster. It gets wiped on app restart so code accordingly.
var tempDirectoryPath = Environment.GetEnvironmentVariable("TEMP");
var filePath = Path.Combine(tempDirectoryPath, Request.Files["file"]);
如果要持久耐用,请改用Blob存储.
If you want durability use Blob Storage instead.
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