将流异步写入Azure BlobStorage

时间:2017-11-09 09:45:18

标签: c# azure blobstorage

我正在重写我的C#代码以使用Azure Blob存储而不是文件系统。到目前为止,没有问题重写正常文件操作的代码。但我有一些代码使用来自流的异步写入:

        using (var stream = await Request.Content.ReadAsStreamAsync())
        {
            FileStream fileStream = new FileStream(@"c:\test.txt", FileMode.Create, FileAccess.Write, FileShare.None);

            await stream.CopyToAsync(fileStream).ContinueWith(
             (copyTask) =>
             {
                 fileStream.Close();
             });
        }

我需要更改以上内容以使用Azure CloudBlockBlob或CloudBlobStream - 但无法找到一种方法来声明copyToAsync可以写入的流对象。

1 个答案:

答案 0 :(得分:2)

您可能希望在CloudBlockBlob上使用UploadFromStreamAsync方法。这是一个示例代码(虽然我没有尝试运行此代码):

        var cred = new StorageCredentials(accountName, accountKey);
        var account = new CloudStorageAccount(cred, true);
        var blobClient = account.CreateCloudBlobClient();
        var container = blobClient.GetContainerReference("container-name");
        var blob = container.GetBlockBlobReference("blob-name");
        using (var stream = await Request.Content.ReadAsStreamAsync())
        {
            stream.Position = 0;
            await blob.UploadFromStreamAsync(stream);
        }