通过Web API将文件上传到Azure文件存储

我正在尝试将文件上传到Azure的云存储，但只能得到bad request 400响应。在本地主机上运行该应用程序，并尝试连接到我们在Azure上的帐户。

当我将其放在try / catch中时，我bad request 400在最后一行

cloudFile.Create（fileSize）;

下面的这一行返回null，但是当我在if语句中检查它时，文件共享存在：

var listShares = fileClient.ListShares（）; // 空值

我只找到了一个有关如何实际上传文件的示例：

// Connect to Azure Storage         
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
        CloudConfigurationManager.GetSetting("AzureStorageConnectionString"));

    //Create a CloudFileClient object for credentialed access to File storage.
    CloudFileClient fileClient = storageAccount.CreateCloudFileClient();

    //Get a reference to the file share we created previously.
    CloudFileShare share = fileClient.GetShareReference("appbackup");

    var listShares = fileClient.ListShares();

    //Ensure that the share exists.
    if (share.Exists())
    {
        //Get a reference to the root directory for the share.
        CloudFileDirectory rootDir = share.GetRootDirectoryReference();

        //Get a reference to the sampledir directory we created previously.
        CloudFileDirectory sampleDir = rootDir.GetDirectoryReference("sampledir");

        //Ensure that the directory exists.
        if (sampleDir.Exists())
        {
            var test = rootDir.ListFilesAndDirectories();
            var Credentials = new Microsoft.WindowsAzure.Storage.Auth.StorageCredentials("accountName", "keyValue");

            string stringUri = storageAccount.FileStorageUri.PrimaryUri + share.Name + "/sampledir/";

            Uri theUri = new Uri(stringUri);
            CloudFile cloudFile = new CloudFile(theUri, Credentials);
            System.IO.FileInfo fi = new System.IO.FileInfo(filepath);
            long fileSize = fi.Length;
            cloudFile.Create(fileSize);
        }
    }