需要从Azure上托管的.net网站访问目录

Question

I have an Asp.net website hosted on Azure. It has an upload excel file functionality so a Fileupload control is in play.

string fileToSave = ConfigurationManager.AppSettings["DirectoryLocation"] + FileUpload.FileName;
FileUpload.PostedFile.SaveAs(fileToSave);

This works fine in traditional IIS servers but in Azure I am not sure what path to give in for "ConfigurationManager.AppSettings["DirectoryLocation"]".

I have tried some shared location but looks like it cannot access those.

Please give me some direction.

Answer 1

In contrast to a web application that is hosted on a local IIS your application can run on several instances in Azure that you do not have control over. It even can be moved to another server under certain circumstances. So using a local file system folder is not an option. Instead, you have to use a store that you can access from all the instances.

Have a look at the following overview of Azure Storage under this link . Typically, you would store files in a Blob or a File Storage. On this site, you can also find some samples on how to access the storage from the cloud (and later on from an on-premise application that processes the data).

Answer 2

This code should work but I would recommend you to store files in blob storage. See https://azure.microsoft.com/fr-fr/documentation/articles/storage-dotnet-how-to-use-blobs/