Question

目前我有很多容器。 Foreach容器我想从只包含文件夹名称的其他存储帐户添加一个空文件夹。然后我想用必要的数据填充它。

我不确定是否有可以在容器中创建文件夹的属性。

此处我有两个容器，一个来自我的sourceAccount，另一个来自我的targetAccount。我将sourceAccout的数据发送到tagetAccount。在我的容器dayBlob中的目标帐户中，我想创建子文件夹。

在这段代码中，我得到了所有容器。当我得到这些容器时，我得到了每个容器的名称。我想在目标容器中添加子文件夹，其中包含我在foreach

中获得的名称

        foreach (var items in containers)
        {
            var containerName = items.Name;

        }

我的代码如下

static CloudStorageAccount sourceAccount = new CloudStorageAccount(new StorageCredentials("name", "key"), true);
static CloudStorageAccount targertAccount = new CloudStorageAccount(new StorageCredentials("name", "key"), true);

        static void Main(string[] args)
    {
                  DateTime dateToday = DateTime.Today;

        DateTime date = new DateTime();
        DateTime dateutc = TimeZoneInfo.ConvertTimeToUtc(date);
        TimeSpan startDay = new TimeSpan(00, 00, 00);
        TimeSpan endDay = new TimeSpan(23, 59, 59);
        var sourceClient = sourceAccount.CreateCloudBlobClient();
        var targetClient = targetAccount.CreateCloudBlobClient();
        var testContainer = sourceClient.GetContainerReference("test");
        var sourceContainer = sourceClient.GetContainerReference("downloads");
        var itDropBoxContainer = sourceClient.GetContainerReference("it-dropbox");
        var dayBlob = targetClient.GetContainerReference($"day{dateToday.Day}");

        date = DateTime.Parse($"{dateToday.Day}/{dateToday.Month}/{dateToday.Year}");
        var start = date + startDay;
        var end = date + endDay;
        IEnumerable<CloudBlobContainer> containers = sourceClient.ListContainers();

        foreach (var items in containers)
        {
            var containerName = items.Name;

        }

            foreach (IListBlobItem item in testContainer.ListBlobs(useFlatBlobListing: true))
            {

                var blob = item as CloudBlockBlob;
                var modificationDate = blob.Properties.LastModified;
                // to set the modfication date as local time
                var britishZone = TimeZoneInfo.FindSystemTimeZoneById("GMT Standard Time");
                var lastModified = TimeZoneInfo.ConvertTime((DateTimeOffset)modificationDate, britishZone);
                if (lastModified > start && lastModified < end)
                {
                    try
                    {

                        if (blob != null)
                        {
                            CloudBlockBlob sourceBlob = testContainer.GetBlockBlobReference(blob.Name);
                            CloudBlockBlob targetBlob = dayBlob.GetBlockBlobReference(blob.Name);

                            Console.WriteLine($"Successfully created a snapshot of blob {blob.Name}");
                        }
                    }
                    catch (Exception ex)
                    {

                        ExceptionHandler.LogError(ex, "Failed to copy to the target folder");
                    }
                }

                else
                {
                    Console.WriteLine($"Failed to create a snapshot of blob {blob.Name}");

                }

            }
    }

Answer 1

正如@GauravMantri所提到的，我们无法独立创建文件夹，因为文件夹是blob存储中的虚拟实体。在使用之前，您不需要创建文件夹。例如，即使容器中不存在folder1，我们也可以获得folder1的引用。

var directory = container.GetDirectoryReference("folder1");
// Retrieve reference to a blob named "myblob".
CloudBlockBlob blockBlob = directory.GetBlockBlobReference("myblob");

如果您确实想要创建文件夹，则需要在其中创建一个blob。

var directory = container.GetDirectoryReference("folder1");
CloudBlockBlob blockBlob = directory.GetBlockBlobReference("dummy.txt");
blockBlob.UploadFromByteArray(new byte[0], 0, 0);

要列出容器中的所有文件夹，您可以使用以下代码。

var folders = container.ListBlobs().Where(b => b as CloudBlobDirectory != null).ToList();
foreach (var folder in folders)
{
    Console.WriteLine(folder.Uri);
}

以编程方式在容器Azure C中创建子文件夹

1 个答案: