C# Azure Blob存储Sas错误：身份验证失败

我尝试在Azure Blob存储中使用SAS令牌，但出现以下错误：

<Error>
  <Code>AuthenticationFailed</Code>
  <Message>
    Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature. RequestId:2aada4ff-901e-0011-116c-8bc84f000000 Time:2019-10-25T19:41:37.0381744Z
  </Message>
  <AuthenticationErrorDetail>
    Signature did not match. String to sign used was r 2019-10-25T19:26:51Z 2019-10-25T20:31:51Z /blob/platinepersistencesg/$root/documents-legal-entity-01d6d631-bc1e-54e7-894e-f67297a2bae7 2019-02-02 b
  </AuthenticationErrorDetail>
</Error>

这是我的密码：

public async Task<IActionResult> GetSasToken()
{
    const string containerName = "documents-legal-entity-01d6d631-bc1e-54e7-894e-f67297a2bae7";
    const string blobName = "09578f41-e7fb-4765-bf41-869ea649f03a.pdf";
    const SharedAccessBlobPermissions permissions = SharedAccessBlobPermissions.Read | SharedAccessBlobPermissions.Write | SharedAccessBlobPermissions.Create;

    var blobClient = CloudStorageAccount
        .Parse("DefaultEndpointsProtocol=https;AccountName=<account_name>;AccountKey=<account_key>;EndpointSuffix=core.windows.net")
        .CreateCloudBlobClient();

    var container = blobClient.GetContainerReference(containerName);
    var blob = container.GetBlockBlobReference(blobName);
    var policy = new SharedAccessBlobPolicy
    {
        SharedAccessExpiryTime = DateTime.UtcNow.AddHours(24),
        Permissions = permissions
    };
    var sasToken = blob.GetSharedAccessSignature(policy);
    var sasUri = container.Uri + sasToken;

    return Ok(new { uri = sasUri });
}

public异步任务GetSasToken（）
{
const string containerName=“documents-legal-entity-01d6d631-bc1e-54e7-894e-f67297a2bae7”；
常量字符串blobName=“09578f41-e7fb-4765-bf41-869ea649f03a.pdf”；
const SharedAccessBlobPermissions permissions=SharedAccessBlobPermissions.Read | SharedAccessBlobPermissions.Write | SharedAccessBlobPermissions.Create；
var blobClient=CloudStorageAccount
.Parse（“DefaultEndpointsProtocol=https；AccountName=”，但为了简单起见，我想改用Azure客户端，以避免携带存储密钥。
您唯一缺少的是URL构造中的blob名称。只需更改：

var sasUri=container.Uri+sasToken；

…到

var sasUri=blob.Uri+sasToken；
我们已经成功地使用_blobClient在公共访问模式下上传/下载blob，所以我认为问题不存在？我还是在我的问题中添加了它。是的，您的身份验证很好。我复制了您的错误并更新了上面的答案。请编辑您的问题，并包含您给我们的代码正在使用SAS URL进行上传。