使用 BlobServiceClient 設置內容類型

Question

我正在使用Azure.Storage.Blobs 庫 v12將文件上傳到我的 Azure Blob 存儲容器。

它工作正常，但我一直無法找到一種方法來設置文件的content-type 。

我找到了一些文檔，但智能感知沒有給我任何設置BlobHttpHeaders的選項。 如何設置上傳文件的內容類型？

這是我的代碼

public class StorageService : IStorageService
{
    private string containerName = "my-container";
    private static string connectionString = "my-connection-string";
    private readonly BlobServiceClient _client;

    public StorageService()
    {
        _client = new BlobServiceClient(connectionString);
    }

    public async Task<string> UploadFile(string filePath, string fileName)
    {
        try
        {
            // Generate a unique name for the blob we're uploading
            var blobName = Guid.NewGuid().ToString() + "__" + fileName;

            var _blobContainerClient = _client.GetBlobContainerClient(containerName);

            using (var fileStream = File.OpenRead(filePath))
                await _blobContainerClient.UploadBlobAsync(blobName, fileStream).ConfigureAwait(false);

            return blobName;
        }
        catch
        {
            throw new Exception();
        }
    }
}

Answer 1

嘗試

try
{
// Generate a unique name for the blob we're uploading
var blobName = Guid.NewGuid().ToString() + "__" + fileName;
var _blobContainerClient = _client.GetBlobContainerClient(containerName);

BlobClient blob = _blobContainerClient.GetBlobClient(fileName);

var blobHttpHeader = new BlobHttpHeaders();
string extension = Path.GetExtension(blob.Uri.AbsoluteUri);
switch (extension.ToLower())
{
    case ".jpg":
    case ".jpeg":
        blobHttpHeader.ContentType = "image/jpeg";
        break;
    case ".png":
        blobHttpHeader.ContentType = "image/png";
        break;
    case ".gif":
        blobHttpHeader.ContentType = "image/gif";
        break;
    default:
        break;
}

await using (var fileStream = new MemoryStream(imageBytes))
{
    var uploadedBlob = await blob.UploadAsync(fileStream, blobHttpHeader);
}
}
catch
{
  throw new Exception();
}

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