Azure Blob 下载为字节数组错误 "Memory Stream is not expandable"

Question

我想将 blob 下载为字节数组，但出现上述错误。 我的代码如下

Dim fullFileBytes() As Byte = {}
Dim objAzureStorage As New AzureCloudStorage

Dim fullImageBlob As Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob = objAzureStorage.CloudContainer.GetBlockBlobReference(row(0))

fullImageBlob.DownloadToByteArray(fullFileBytes, 0)

Answer 1

由于我没有使用过 VB.Net，所以让我用 C# 提供答案。本质上，我所做的就是读取内存流中的 blob 内容，然后将其转换为字节数组并返回该数组。

    private static byte[] ReadBlobInByteArray()
    {
        var cred = new StorageCredentials(accountName, accountKey);
        var account = new CloudStorageAccount(cred, true);
        var container = account.CreateCloudBlobClient().GetContainerReference("container-name");
        var blob = container.GetBlockBlobReference("blob-name");
        using (var ms = new MemoryStream())
        {
            blob.DownloadToStream(ms);
            return ms.ToArray();
        }
    }