ASP.NET C# - 在服务器上保存 FileStream

ASP.NET C# - Save FileStream on server(ASP.NET C# - 在服务器上保存 FileStream)

问题描述

我有初学者的问题.

如何将文件流保存到服务器上的文件中?！

How to save a file stream to a file on server?!

我知道了:

var source = Request.QueryString["src"];
WebClient webclient = new WebClient();
using (Stream stream = webclient.OpenRead(source))
{
   Bitmap iconbitmap = new Bitmap(System.Drawing.Image.FromStream(stream));
   FileStream os = new FileStream("./asdasdasd.ico", FileMode.Create);

   var ic = MakeIcon(iconbitmap, 16, false); /// function returns an icon

   ic.Save(os);
}

我的问题是，当我在 ASP.NET 开发服务器中运行代码时，它会将asdasdasd.ico"保存到:C:Program FilesMicrosoft Visual Studio 9.0Common7IDEasdasdasd.ico

My problem is than when I run code in ASP.NET Development Server it saves "asdasdasd.ico" into: C:Program FilesMicrosoft Visual Studio 9.0Common7IDEasdasdasd.ico

而且，当我在远程服务器上运行它时出现错误.

And, when I run it on remote server got error.

我想把它保存到:www.my-web-site.com/output/asdasdasd.ico

I want to save it into: www.my-web-site.com/output/asdasdasd.ico

非常感谢.

推荐答案

使用Server.MapPath() (还有一个用于关闭文件的 using 块会有所帮助):

Use Server.MapPath() (also a using block for closing the file would help):

using(FileStream os = new FileStream(Server.MapPath("/output/asdasdasd.ico"), FileMode.Create))
{
   var ic = MakeIcon(iconbitmap, 16, false); /// function returns an icon
   ic.Save(os);
}

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