我已经设置了 Azure Blob Storage上传/下载文件。
ProcessAsync(Folderpath, rows.Item("FileName"), rows.Item("Extension")).GetAwaiter().GetResult()
System.IO.File.Move(Folderpath + "\" + rows.Item("FileName"), AchivePath + "\" + rows.Item("FileName"))
WriteToLog("Extracted File : " + rows.Item("FileName") + " ", "")
DownloadBlobSnapshot(rows.Item("FileName"), rows.Item("Extension")).GetAwaiter().GetResult()
目前，我可以将文件本地存储在我的桌面上。如何使用 Using 在 .net MVC 平台上保存并显示文件和 MemoryStream/FileStream ？
或者，有没有更好的方法？
编辑 1:(基于 Ivan 的回答)
Private Shared Async Function DownloadBlobSnapshot(FileName As String, Extension As String) As Task
Dim storageAccount As CloudStorageAccount
Dim storageConnectionString As String = ConfigurationManager.AppSettings("StorageConnectionString")
Dim accountName As String = myaccountname
Dim accountKey As String = myaccountkey
Dim cred = New StorageCredentials(accountName, accountKey)
Dim account = New CloudStorageAccount(cred, True)
Dim client = account.CreateCloudBlobClient()
Dim container = client.GetContainerReference(FileName.Replace(Extension, ""))
Dim listOfBlobs As IEnumerable = container.ListBlobs(Nothing, True, BlobListingDetails.Snapshots)
If CloudStorageAccount.TryParse(storageConnectionString, storageAccount) Then
For Each item In listOfBlobs
Dim blockBlob As CloudBlockBlob = container.GetBlockBlobReference((CType(item, CloudBlockBlob)).Name)
blockBlob.DownloadToStream(Response.OutputStream)
Next
//ToDO
End If
End Function
但我意识到 Response 在 Shared 函数中不可用。
最佳答案
您可以使用DownloadToStream。
示例代码如下(asp.net mvc项目):
public ActionResult DownloadFile()
{
CloudStorageAccount storageAccount = new CloudStorageAccount(new StorageCredentials("your_account", "your_key"),true);
CloudBlobClient client = storageAccount.CreateCloudBlobClient();
CloudBlobContainer blobContainer = client.GetContainerReference("t11");
CloudBlockBlob blob = blobContainer.GetBlockBlobReference("ss22.pdf");
blob.DownloadToStream(Response.OutputStream);
return new EmptyResult();
}
更新1:上传vb.net mvc项目的截图:
关于.net - Azure Blob 存储 - 使用文件流/内存流显示 PDF，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53439499/