c# - Azure云存储SDK UploadFromStreamAsync不起作用

我正在尝试将文件上传到.Net Core 2.1中的Azure blob存储。下面是我的代码。

IFormFileCollection files = formCollection.Files;

foreach (var file in files)
{
    if (file.Length > 0)
    {
        _azureCloudStorage.UploadContent(cloudBlobContainer, file.OpenReadStream(), file.FileName);
    }
}

UploadContent的实现-

public async void UploadContent(CloudBlobContainer containerReference, Stream contentStream, string blobName)
{
    try
    {
        using (contentStream)
        {
            var blockBlobRef = containerReference.GetBlockBlobReference(blobName);
            //await containerReference.SetPermissionsAsync(new BlobContainerPermissions
            //{
            //    PublicAccess = BlobContainerPublicAccessType.Blob
            //});
            await blockBlobRef.UploadFromStreamAsync(contentStream);
        }
    }
    catch(Exception ex)
    {
        //Error here
    }
}

代码执行时出现以下错误-



对我有用的替代解决方案:adding to azure blob storage with stream

请帮忙吗？如果可以提供更多详细信息，请告诉我。

最佳答案

我的解决方案是包括文件长度并设置位置= 0。

MemoryStream outStr = new MemoryStream();
CloudBlockBlob myBlob = container.GetBlockBlobReference(name);
outStr.Position = 0;
await myBlob.UploadFromStreamAsync(outStr, outStr.Length);