C# 404 Azure存储客户端库v2的共享访问签名错误

我正在尝试使用WindowsAzure存储客户端库的v2.0为blob生成共享访问签名（并使用它）。 我一开始是，但它是针对v1.7的，将其转换为2.0会产生404错误

这是我的实际代码： 服务器端，要生成SAS：

var myAccount = CloudStorageAccount.Parse(
                  ConfigurationManager.ConnectionStrings[
                              "AzureStorageConnectionString"].ConnectionString);
var myContainer = myAccount.CreateCloudBlobClient()
                                          .GetContainerReference(containerName);
myContainer.CreateIfNotExists();

string blobName = "Imports/" + DateTime.UtcNow.ToString("yyyy-MM-dd_HH-mm-ss") 
                             + ".zip";
var myBlob = myContainer.GetBlockBlobReference(blobName);
using (var stream = 
 new MemoryStream(System.Text.Encoding.UTF8.GetBytes("Hey, I'm empty for now.")))
{
    myBlob.UploadFromStream(stream);
}

var sharedAccesSignature = myBlob.GetSharedAccessSignature(
                 new Microsoft.WindowsAzure.Storage.Blob.SharedAccessBlobPolicy()
{
   Permissions = 
       Microsoft.WindowsAzure.Storage.Blob.SharedAccessBlobPermissions.Write 
       | Microsoft.WindowsAzure.Storage.Blob.SharedAccessBlobPermissions.Read,
       SharedAccessExpiryTime = DateTime.UtcNow.AddHours(1),
});

return myBlob.Uri.AbsoluteUri + sharedAccesSignature;

它在客户端尝试了很多东西，有时导致404或403服务器错误。 例如，我尝试了这个（结果：404）：

我试着换了

container.GetBlobReferenceFromServer(blobWithSharedAccessSignature);

blobClient = new CloudBlobClient(new Uri(blobWithSharedAccessSignature));

借

我也试着换了

container.GetBlobReferenceFromServer(blobWithSharedAccessSignature);

blobClient = new CloudBlobClient(new Uri(blobWithSharedAccessSignature));

借

这将导致“403-禁止”错误

有人能帮我提供一个完整的v2样本吗？或者告诉我是我的错？谢谢

更新-此处的解决方案：（感谢Sandrino Di Mattia）

---

初始化

CloudBlobClient

时，需要传递2个参数

• baseUri：不带SAS的Blob url，

  http://test.blob.core.windows.net/temp/Imports/2012-12-01_20-56-52.zip

• 凭证：这应该是没有url的SAS，

  ？sv=2012-02-12&se=2012-12-01T21%3A57%3A56Z&sr=b&sp=rw&sig=5JboXXM1Yeo%2BuI6mb18VbURluo%3D

工作样本：

var blobClient = new CloudBlobClient(new Uri(blob.Uri.AbsoluteUri), new StorageCredentials(sharedAccesSignature));
using (var fileStream = File.OpenRead(fileFullPath))
{

    blobClient.GetBlobReferenceFromServer(new Uri(blob.Uri.AbsoluteUri))
                .UploadFromStream(fileStream);
}

---

额外提示：您不需要获取容器的引用。通过在

CloudBlobClient

上调用

GetBlobReferenceFromServer

可以立即访问blob，谢谢！但我完全不理解其中的逻辑：为什么CloudBlobClient不能从一个Uri中找到凭证和基本Uri？真奇怪！它只有两行代码（请参阅我的最终解决方案编辑）。顺便说一句，非常感谢你的回答！这样做可能是为了将身份验证与实际的Blob服务实现分离。结果是，您的代码可以与SAS请求和“完全访问”请求（帐户名+密钥）相同，只需提供不同的

StorageCredentials

。我不确定您是否可以帮助我，请您看看这个问题并在那里回答我。在我的平台（Android）中我没有得到类似于GetBlobReferenceFromServer的方法。那样的话我该怎么办？我需要你的帮助。。。

// Assuming that blobWithSharedAccessSignature is : 
//  "https://azertyuiop.blob.core.windows.net/container1/Imports/2012-12-01_19-43-54.zip?sv=2012-02-12&se=2012-12-01T20%3A43%3A54Z&sr=b&sp=rw&sig=h0bTUkTR%2FdTF%2BVZgDUuBPHqG%2BiTtFeXK4kepBpDR2AU%3D"
Uri blobUriWithoutCredentials = new Uri(new Uri(blobWithSharedAccessSignature).GetLeftPart(UriPartial.Path));
// here blobUriWithoutCredentials is https://azertyuiop.blob.core.windows.net/container1/Imports/2012-12-01_19-43-54.zip
string credentials = blobWithSharedAccessSignature.Substring(blobWithSharedAccessSignature.IndexOf('?'));
// here credentials is "?sv=2012-02-12&se=2012-12-01T22%3A26%3A55Z&sr=b&sp=rw&sig=Lsk8kLyJ8TFoGNVLbFLftCIXUNlIIRPZalkhoPdUfh8%3D"
var blobClient = new CloudBlobClient(blobUriWithoutCredentials, new StorageCredentials(credentials));
ICloudBlob blobRef = blobClient.GetBlobReferenceFromServer(blobUriWithoutCredentials);
using (var fileStream = File.OpenRead(fileFullPath))
{
    blobRef.UploadFromStream(fileStream);
}

var blobClient = new CloudBlobClient(new Uri(blob.Uri.AbsoluteUri), new StorageCredentials(sharedAccesSignature));
using (var fileStream = File.OpenRead(fileFullPath))
{

    blobClient.GetBlobReferenceFromServer(new Uri(blob.Uri.AbsoluteUri))
                .UploadFromStream(fileStream);
}