Question

Am使用TransferManager将Blob从一个容器复制到另一个容器。

CloudStorageAccount sourceStorageAccount = CloudStorageAccount.Parse(@"source storage account connection string");
CloudStorageAccount destStorageAccount = CloudStorageAccount.Parse(@"destination storage account connection string");

CloudBlobClient sourceBlobClient = sourceStorageAccount.CreateCloudBlobClient();
CloudBlobClient destBlobClient = destStorageAccount.CreateCloudBlobClient();
var sourceContainer = sourceBlobClient.GetContainerReference("sourceContainer");
var destContainer = destBlobClient.GetContainerReference("destContainer");

CloudBlockBlob sourceBlob = sourceContainer.GetBlockBlobReference("copy.txt");
CloudBlockBlob targetBlob = destContainer.GetBlockBlobReference("copy.txt");

TransferManager.CopyAsync(sourceBlob, targetBlob, true).Wait();

但是，当文件位于目标位置时，它将引发错误说明

“跳过的文件 \“ https://sourceabcd.blob.core.windows.net/sourcecontainer/test1.txt \” 因为目标 \“ https://sourceabcd.blob.core.windows.net/destcontainer/test1.txt \” 已经存在。“} System.Exception {Microsoft.WindowsAzure.Storage.DataMovement.TransferSkippedException

如果目的地中存在文件，是否可以选择覆盖文件？

Answer 1

可能是here

我认为您可以做的事情如下

TransferContext transferContext = new SingleTransferContext();
transferContext.ShouldOverwriteCallbackAsync = TransferContext.ForceOverwrite;
TransferManager.CopyAsync(sourceBlob, targetBlob, true,null,transferContext).Wait();

我对此并不了解，但是我在github here上找到了一些测试用例

如果目标内存在，如何覆盖Blob

1 个答案: