Azure 如何在不同帐户之间使用StartCopyFromBlob？

我正在使用此代码将blob从一个帐户复制到另一个帐户。。。但它抛出了一个例外

var srcAccount = CloudStorageAccount.Parse("connection string 1");
var dstAccount = CloudStorageAccount.Parse("connection string 2");

var srcBlobClient = srcAccount.CreateCloudBlobClient();
var dstBlobClient = dstAccount.CreateCloudBlobClient();

foreach (var srcCloudBlobContainer in srcBlobClient.ListContainers())
{
    var dstCloudBlobContainer = dstBlobClient
        .GetContainerReference(srcCloudBlobContainer.Name);

    dstCloudBlobContainer.CreateIfNotExists();

    foreach (var srcBlob in srcCloudBlobContainer.ListBlobs())
    {
        if (srcBlob.GetType() == typeof(CloudBlockBlob))
        {
            var srcBlockBlock = (CloudBlockBlob)srcBlob;
            var dstBlockBlock = dstCloudBlobContainer
                .GetBlockBlobReference(srcBlockBlock.Name);

            // throws exception StorageException:
            // The remote server returned an error: (404) Not Found.
            dstBlockBlock.StartCopyFromBlob(srcBlockBlock.Uri);
        }
    }
}

Microsoft声明支持跨帐户复制，但我无法使其正常工作

---

我做错了什么？

能否检查源blob容器的ACL？如果是私有的，您可能需要将ACL更改为公共的，或者创建SAS URL。如果希望将blob容器的ACL保持为私有，并使用SAS URL，则可以使用以下代码：

var srcAccount = CloudStorageAccount.Parse("connection string 1");
var dstAccount = CloudStorageAccount.Parse("connection string 2");

            var srcBlobClient = srcAccount.CreateCloudBlobClient();
            var dstBlobClient = dstAccount.CreateCloudBlobClient();

            foreach (var srcCloudBlobContainer in srcBlobClient.ListContainers())
            {
                var dstCloudBlobContainer = dstBlobClient
                    .GetContainerReference(srcCloudBlobContainer.Name);

                dstCloudBlobContainer.CreateIfNotExists();

                //Assuming the source blob container ACL is "Private", let's create a Shared Access Signature with
                //Start Time = Current Time (UTC) - 15 minutes to account for Clock Skew
                //Expiry Time = Current Time (UTC) + 7 Days - 7 days is the maximum time allowed for copy operation to finish.
                //Permission = Read so that copy service can read the blob from source
                var sas = srcCloudBlobContainer.GetSharedAccessSignature(new SharedAccessBlobPolicy()
                {
                    SharedAccessStartTime = DateTime.UtcNow.AddMinutes(-15),
                    SharedAccessExpiryTime = DateTime.UtcNow.AddDays(7),
                    Permissions = SharedAccessBlobPermissions.Read,
                });
                foreach (var srcBlob in srcCloudBlobContainer.ListBlobs())
                {
                    if (srcBlob.GetType() == typeof(CloudBlockBlob))
                    {
                        var srcBlockBlock = (CloudBlockBlob)srcBlob;
                        var dstBlockBlock = dstCloudBlobContainer
                            .GetBlockBlobReference(srcBlockBlock.Name);
                        //Create a SAS URI for the blob
                        var srcBlockBlobSasUri = string.Format("{0}{1}", srcBlockBlock.Uri, sas);
                        // throws exception StorageException:
                        // The remote server returned an error: (404) Not Found.
                        dstBlockBlock.StartCopyFromBlob(new Uri(srcBlockBlobSasUri));
                    }
                }
            }

---

复制操作完成后是否可以取消SAS？是的，可以这样做，但会使代码复杂一点。为此，必须使用

访问策略创建SAS

。您需要做的是在源容器上创建一个具有

Read

权限的访问策略，并在复制之前定义SAS过期日期。由于复制blob是一个异步过程，因此需要监视复制操作的进度。复制操作完成后，可以删除该访问策略。您可以在此处阅读有关访问策略的更多信息：。您好，这篇文章似乎很旧，但我在存储帐户之间复制blob时也遇到了问题。有趣的是，在同一个存储帐户内复制时，拷贝工作正常。关于SAS-我真的需要SAS来执行复制操作吗？我可能需要提醒未来的访问者，

StartCopyFromBlob

现在已被弃用，并且（我相信）已被

StartCopy