Blob存储中的空白图片 [英] empty image from blob storage

问题描述

这是我尝试将图像上传到Azure博客存储，然后上传在那里的空文件的方法.

This is how I try to upload an image to Azure blog storage, then upload an empty file located there.

我尝试在此处上传此图片:

I try to upload this image here:

CloudStorageAccount storageAccount = new CloudStorageAccount(new Microsoft.WindowsAzure.Storage.Auth.StorageCredentials(Accountname, KeyValue), true);
            // Create the blob client.
            CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

            // Retrieve a reference to a container.
            CloudBlobContainer container = blobClient.GetContainerReference(ContainerValue);

            CloudBlockBlob blockBlob = container.GetBlockBlobReference(filename);
            using (var f = System.IO.File.Open(model.FileToUpload.FileName, FileMode.Create))
            {
                await blockBlob.UploadFromStreamAsync(f);
            }

但是，如果我尝试打开此图像，请说这个.

But if i try to open this image say this.

从丹麦语到英语:我们无法打开此文件

推荐答案

正如Marco所说，FileMode.Create指定操作系统应创建一个新文件.如果该文件已经存在，则将被覆盖. 有关更多详细信息，您可以参考此

As Marco said, FileMode.Create specifies that the operating system should create a new file. If the file already exists, it will be overwritten. For more details, you could refer to this article.

根据您提供的图片，斑点大小为 0 B .因此，您将永远找不到文件并打开它. FileMode指定操作系统应如何打开文件.

According to the pictures you provided, your blob size is 0 B. So, you would always couldn't find the file and open it. FileMode specifies how the operating system should open a file.

因此，我建议您可以删除它，并使用 OpenRead 打开现有文件进行读取.您可以参考以下代码:

So I suggest that you could delete it and use OpenRead to open an existing file for reading. You could refer to the code as below:

using (var f = System.IO.File.OpenRead(model.FileToUpload.FileName))
            {
                await blockBlob.UploadFromStreamAsync(f);
            }

这篇关于Blob存储中的空白图片的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！