c# - 来自 Azure Blob 下载图像的链接，但我只需要观看(Asp.NET Core)

Question

我有代码将图像上传到Azure Blob存储

这是上传图片的代码

public async Task<string> UploadFile(IFormFile file)
    {
        CloudStorageAccount storageAccount =
            CloudStorageAccount.Parse(_configuration.GetConnectionString("AccessKey"));
        CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
        CloudBlobContainer container = blobClient.GetContainerReference("toosee");
        CloudBlockBlob blockBlob = container.GetBlockBlobReference(file.FileName);
        using (var fileStream = file.OpenReadStream())
        {
            await blockBlob.UploadFromStreamAsync(fileStream);
        }

        return blockBlob.Uri.ToString();
    }

结果我得到了网址

当我打开它时，图像正在下载。我只需要看一下，我的问题出在哪里？

Answer 1

如果此答案未反射(reflect)所需/预期的行为，请忽略此答案。

--- 观察到 ---

如果网络浏览器按如下方式下载图像 blob:

---预期---

并且，所需的行为是网络浏览器将其呈现如下:

--- 修复 ---

然后，将以下行添加到您的代码中:

blockBlob.Properties.ContentType = "image/png";

下面是示例代码:

    public static string UploadFile()
    {
        CloudStorageAccount storageAccount = CloudStorageAccount.Parse("{Connection String}");
        CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
        CloudBlobContainer container = blobClient.GetContainerReference("toosee");
        CloudBlockBlob blockBlob = container.GetBlockBlobReference("customer_address.png");
        blockBlob.Properties.ContentType = "image/png";
        blockBlob.UploadFromFile(@"C:\\Temp\\customer_address.PNG");
        return blockBlob.Uri.ToString();
    }

---引用文献---

在 https://www.iana.org/assignments/media-types/media-types.xhtml#image 中查找图像的 MIME 类型列表.