之前写过一个往Microsoft Azure Storage Explorer里存储的功能，现在又要把东西给下载下来。

记录一下：

  public string DownFileFromAzure()

         {

             StorageCredentials storageCredentials = new StorageCredentials(System.Configuration.ConfigurationManager.AppSettings["Blob_AccountName"].ToString(), System.Configuration.ConfigurationManager.AppSettings["Blob_AccountKey"].ToString());

             CloudStorageAccount storageAccount = new CloudStorageAccount(storageCredentials, "core.chinacloudapi.cn", true);

             CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

             CloudBlobContainer blobContainer = blobClient.GetContainerReference("acsh");//容器 

             CloudBlockBlob blockBlobs = blobContainer.GetBlockBlobReference("2019/7/1/131JS0E5201907000005");//除了外层的容器外的全路径

             string end=  blockBlobs.DownloadText();

             byte[] ensbyte = new byte[];

             blockBlobs.DownloadToByteArray(ensbyte, );

             blockBlobs.DownloadToFile(@"E:\DownFromAzure\Open", FileMode.OpenOrCreate);//直接下载到本地的文件

             //blockBlobs.Delete();

             return "";

         }

             MemoryStream stream = new MemoryStream();//声明一个流文件，用于接收DownloadToStream();

            stream.Seek(,SeekOrigin.Begin);

            blockBlobs.DownloadToStream(stream);

            byte[] b = stream.ToArray();

            //string s = System.Text.Encoding.UTF8.GetString(b, 0, b.Length);

            //byte[] fileByte = Convert.FromBase64String(s);

            return b;

            //blockBlobs.Delete();   
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SECURITY eCURITY = new SECURITY();
byte[] fileByte = eCURITY.DownFileFromAzure();
Response.Clear();
Response.AddHeader("Content-Disposition", string.Format("attachment;filename={0}.pdf","Test"));
Response.BinaryWrite(fileByte);
Response.ContentType="application/pdf";
Response.Flush();
Response.End();
return View();