如何使用 C# 使用 ASP.NET Core 6 MVC 将 Base64 / byte [] 图像上传到 Azure Blob？

Question

这是我的代码 IFormFile。

public static async Task<string> UploadFileToBlobStorage(IFormFile file)
        {
            string container = "abccontainer";
            string storageAccount_connectionString = "DefaultEndpointsProtocol=https;AccountName=abc/aXQUORlrTMNkxaUFPDDlLEW/mwe5Fihy+zl4p+ysF6Y+9JiMud8khH+AStEDb6DA==;EndpointSuffix=core.windows.net";
            BlobContainerClient blobContainerClient = new(storageAccount_connectionString, container);

            BlobClient blob = blobContainerClient.GetBlobClient(Path.GetFileName(file.FileName));

            var mimeTypes = GetFileContentType(Path.GetFileName(file.FileName));
            var header = new BlobHttpHeaders
            {
                ContentType = mimeTypes
            };

            await blob.UploadAsync(file.OpenReadStream(), header);

            return blob.Uri.AbsoluteUri;
        }

但是，我想将 bytes[] 上传到 blob 存储。为此，我将只传递 byte[] 数组，它应该上传。

我能怎么做 ？

public static async Task<string> UploadFileToBlobStorage(byte[] array)
        {
            return blob.Uri.AbsoluteUri;
        }

Answer 1

UploadAsync 有一个 overload 接受 BinaryData 对象。

您应该能够像这样重写您的代码：

BlobClient blob = blobContainerClient.GetBlobClient("somename.txt"); // update as necessary

var header = new BlobHttpHeaders
{
    ContentType = "text/plain" // update as necessary
};


byte[] sourceData = getSourceData();
BinaryData uploadData = new BinaryData(sourceData);
await blob.UploadAsync(uploadData, new BlobUploadOptions { HttpHeaders = header });