无法通过C＃.NET下载exe文件 [英] Cannot download exe files through c#.net

问题描述

我已经设计了一个网站，通过它，当我点击一个按钮，一个.EXE文件应该从具体的路径从我的计算机上下载。

但它不是下载的exe文件，而不是它的下载网站的aspx页面。

我用下面的code：

  WebClient的myWebClient =新的WebClient（）;
//连接具有Web资源文件名域。
myWebClient.DownloadFile（HTTP：//本地主机：1181 /编译/编译器/ sample2.exe，sample2.exe）;
 

解决方案

能否请你试试这个。

 字符串文件名=yourfilename;
如果（文件名！=）
{
    字符串路径=使用Server.Mappath（文件名）;
    System.IO.FileInfo文件=新System.IO.FileInfo（路径）;
    如果（file.Exists）
    {
         Response.Clear（）;
         //内容处置会告诉浏览器如何处理该文件。（例如，在JPG文件的情况下，可以在浏览器中显示文件或下载）
         //这里attachement是重要的。这是告诉浏览器，以输出作为附件，这是在下载对话框被显示的名
         Response.AddHeader（内容处置，附件;文件名=+ file.Name）;
         //内容讲述长度..
         Response.AddHeader（内容长度，file.Length.ToString（））;         //文件类型，无论是exe文件，PDF，JPEG等等等等
         Response.ContentType =应用程序/八位字节流;         //在响应写入该文件的内容，以发送回客户..
         Response.WriteFile（file.FullName）;
         到Response.End（）;
    }
    其他
    {
         的Response.Write（此文件不存在。）;
    }
}
 

我希望我的编辑评论将有助于了解。但要注意：这只是一个粗略的总结。你可以做得比这多很多。

I have designed a website through which when i click a button a .EXE file should download from specific path from my computer.

But its not downloading the exe file instead its downloading the aspx page of the website.

I use the following code:

WebClient myWebClient = new WebClient();
// Concatenate the domain with the Web resource filename.
myWebClient.DownloadFile("http://localhost:1181/Compile/compilers/sample2.exe", "sample2.exe");

解决方案

Can you please try this.

string filename = "yourfilename";
if (filename != "")
{
    string path = Server.MapPath(filename);
    System.IO.FileInfo file = new System.IO.FileInfo(path);
    if (file.Exists)
    {
         Response.Clear();
         //Content-Disposition will tell the browser how to treat the file.(e.g. in case of jpg file, Either to display the file in browser or download it)
         //Here the attachement is important. which is telling the browser to output as an attachment and the name that is to be displayed on the download dialog
         Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
         //Telling length of the content..
         Response.AddHeader("Content-Length", file.Length.ToString());

         //Type of the file, whether it is exe, pdf, jpeg etc etc
         Response.ContentType = "application/octet-stream";

         //Writing the content of the file in response to send back to client..
         Response.WriteFile(file.FullName);
         Response.End();
    }
    else
    {
         Response.Write("This file does not exist.");
    }
}

I hope my edited comment will help to understand. But note: It is just a rough summary. You can do a lot more than this.

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