C＃从一个blob副本文件到另一个blob的Azure存储

Question

如何读取要从一个Blob流式传输并上传到另一个Blob的文件？我的要求是将文件从一个blob复制到另一个具有不同文件名的blob？在C＃中

Answer 1

复制文件的最简单方法之一是使用AzCopy实用程序。

Answer 2

实现它的最简单方法是使用"Azure Storage Data Movement Library"（你可以通过nuget包得到它）。

这是一个简单的样本，使传输：

using Microsoft.WindowsAzure.Storage; 
using Microsoft.WindowsAzure.Storage.Blob; 
using Microsoft.WindowsAzure.Storage.DataMovement; 
using System; 

namespace BlobClient 
{ 
    class Program 
    { 
     static void Main(string[] args) 
     { 
      const string storageConnectionString = "DefaultEndpointsProtocol=https;AccountName=juanktest;AccountKey=loHQwke4lSEu1p2W3gg=="; 
      const string container1 = "juankcontainer"; 
      const string sourceBlobName = "test.txt"; 
      const string destBlobName = "newTest.txt"; 


      //Setup Account, blobclient and blobs 
      CloudStorageAccount account = CloudStorageAccount.Parse(storageConnectionString); 
      CloudBlobClient blobClient = account.CreateCloudBlobClient(); 

      CloudBlobContainer blobContainer = blobClient.GetContainerReference(container1); 
      blobContainer.CreateIfNotExists(); 

      CloudBlockBlob sourceBlob = blobContainer.GetBlockBlobReference(sourceBlobName); 

      CloudBlockBlob destinationBlob = blobContainer.GetBlockBlobReference(destBlobName); 

      //Setup data transfer 
      TransferContext context = new TransferContext(); 
      Progress<TransferProgress> progress = new Progress<TransferProgress>(
       (transferProgress) => { 
         Console.WriteLine("Bytes uploaded: {0}", transferProgress.BytesTransferred); 
       }); 

      context.ProgressHandler = progress; 

      // Start the transfer 
      try 
      { 
       TransferManager.CopyAsync(sourceBlob, destinationBlob, 
        false /* isServiceCopy */, 
        null /* options */, context); 
      } 
      catch (Exception e) 
      { 
       Console.WriteLine("The transfer is cancelled: {0}", e.Message); 
      } 

      Console.WriteLine("CloudBlob {0} is copied to {1} ====successfully====", 
          sourceBlob.Uri.ToString(), 
          destinationBlob.Uri.ToString()); 

      Console.ReadLine(); 
     } 
    } 
} 

注意，“Azure存储数据移动图书馆”是非常强大的，所以你可以跟踪传输进度，取消操作，甚至暂停它稍后恢复;）