在运行以下代码时获取损坏的文件以下载文件。有人可以建议我纠正它吗？ [英] Getting corrupt file on running the below code to download files. Can someone suggest me to rectify it?

问题描述

internal static HttpResponseMessage DownloadFile1(string blobName, string fileName)
{
   HttpResponseMessage response = new HttpResponseMessage();
   string path = @"D:\Project\Newfolder\";
   string filePath = Path.Combine(path + fileName);
   MemoryStream responseStream = new MemoryStream();
   byte[] info = new UTF8Encoding(true).GetBytes(blobName);
   File.SetAttributes(path, FileAttributes.Normal);
   Stream fileStream = System.IO.File.OpenWrite(filePath);
   responseStream.Position = 0;
   fileStream.Write(info, 0, info.Length);
   response.Content = new StreamContent(responseStream);
   string contentDisposition = string.Concat("attachment; filename=", fileName);
   response.Content.Headers.ContentDisposition =
   ContentDispositionHeaderValue.Parse(contentDisposition);
   fileStream.Flush();
   return response;
}

我的尝试：



我尝试重构这段代码，但是当我尝试使用SSMS恢复它时收到错误信息文件已损坏。

What I have tried:

I tried restructuring this code but getting the error message that the file is corrupted when i tried to restore it using SSMS.

推荐答案

第一件事检查是：在下载代码涉及之前文件是否已损坏？



首先使用浏览器下载它，看看你得到了什么。它有用吗？如果没有 - 有你的问题。

如果是，请将你的代码下载的文件与原始，已知的好版本进行比较。它们的大小相同吗？十六进制编辑器说的是什么？文件比较实用程序怎么样？



我们无法修复代码而没有数据来运行它 - 所以你需要开始积累数据以找出它是如何失败的 - 没有你，你只是猜测问题是什么！

The first thing to check is: is the file already corrupted before your download code gets involved?

Start by downloading it with a browser and see what you get. Does it work? If not - there is your problem.
If it does, then compare the file your code downloaded to the "original", known good version. Are they the same size? What does a hex editor say is in them? How about a file compare utility?

We can't fix code without data to run it against - so you need to start accumulating data to find out how it's failing - without that you are just guessing what the problem is!

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