将单个文件上载到Blob Storage Azure

如何使用C＃上传文件？ 我需要从dialogWindow上传文件。

Answer 1

using Microsoft.WindowsAzure.Storage; using Microsoft.WindowsAzure.Storage.Auth; using Microsoft.WindowsAzure.Storage.Blob; // Retrieve storage account from connection string. CloudStorageAccount storageAccount = CloudStorageAccount.Parse("StorageKey"); // Create the blob client. CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient(); // Retrieve reference to a previously created container. CloudBlobContainer container = blobClient.GetContainerReference("mycontainer"); // Retrieve reference to a blob named "myblob". CloudBlockBlob blockBlob = container.GetBlockBlobReference("myblob"); // Create or overwrite the "myblob" blob with contents from a local file. using (var fileStream = System.IO.File.OpenRead(@"path\myfile")) { blockBlob.UploadFromStream(fileStream); } 

请参阅此处有关所需的SDK和参考资料

我认为这就是你所需要的

Answer 2

我们可以使用BackgroundUploader类，然后我们需要提供StorageFile对象和一个Uri ：Required Namespaces：

 using System; using System.Collections.Generic; using System.Threading; using System.Threading.Tasks; using Windows.Foundation; using Windows.Foundation.Collections; using Windows.Networking.BackgroundTransfer; using Windows.Storage.Pickers; using Windows.Storage; 

过程如下：使用通过UI输入字段提供的字符串值定义Uri，并且当最终用户通过由UI提供的UI选择文件时，返回由StorageFile对象表示的所需上载文件。 PickSingleFileAsync操作

 Uri uri = new Uri(serverAddressField.Text.Trim()); FileOpenPicker picker = new FileOpenPicker(); picker.FileTypeFilter.Add("*"); StorageFile file = await picker.PickSingleFileAsync(); 

然后：

 BackgroundUploader uploader = new BackgroundUploader(); uploader.SetRequestHeader("Filename", file.Name); UploadOperation upload = uploader.CreateUpload(uri, file); // Attach progress and completion handlers. await HandleUploadAsync(upload, true); 

就这样

Answer 3

这是完整的方法。

  [HttpPost] public ActionResult Index(Doctor doct, HttpPostedFileBase photo) { try { if (photo != null && photo.ContentLength > 0) { // extract only the fielname var fileName = Path.GetFileName(photo.FileName); doct.Image = fileName.ToString(); CloudStorageAccount cloudStorageAccount = DoctorController.GetConnectionString(); CloudBlobClient cloudBlobClient = cloudStorageAccount.CreateCloudBlobClient(); CloudBlobContainer cloudBlobContainer = cloudBlobClient.GetContainerReference("images"); string imageName = Guid.NewGuid().ToString() + "-" +Path.GetExtension(photo.FileName); CloudBlockBlob BlockBlob = cloudBlobContainer.GetBlockBlobReference(imageName); BlockBlob.Properties.ContentType = photo.ContentType; BlockBlob.UploadFromStreamAsync(photo.InputStream); string imageFullPath = BlockBlob.Uri.ToString(); var memoryStream = new MemoryStream(); photo.InputStream.CopyTo(memoryStream); memoryStream.ToArray(); memoryStream.Seek(0, SeekOrigin.Begin); using (var fs = photo.InputStream) { BlockBlob.UploadFromStreamAsync(memoryStream); } } } catch (Exception ex) { } return View(); } 

getconnectionstring方法就是这个。

  static string accountname = ConfigurationManager.AppSettings["accountName"]; static string key = ConfigurationManager.AppSettings["key"]; public static CloudStorageAccount GetConnectionString() { string connectionString = string.Format("DefaultEndpointsProtocol=https;AccountName={0};AccountKey={1}", accountname, key); return CloudStorageAccount.Parse(connectionString); }