如何从URL获取文件名，C＃/ .NET？ [英] How Get File Name from URL ,C#/.NET?

问题描述

如果地址以这样的方式结束，我该如何获取文件名。

/ download / file / 36fdd4aebda3819d329640ce75755657bc0c0d4c6811432b3bb6aac321dc78d /？

How can I get a file name if the address ends with something like this.
/download/file/36fdd4aebda3819d329640ce75755657bc0c0d4c6811432b3bb6aac321dc78d/ ?

这是简化的代码示例，

void geckoWebBrowser1_Navigating(object sender, GeckoNavigatingEventArgs e)
    {
             if (e.Uri.AbsolutePath.Contains("/file/"))
                {
                      MyUrl = e.Uri.ToString();
                         // and here I tried different codes construstors, methods but I can not get the filename
                }
            if (e.Uri.Segments[e.Uri.Segments.Length - 1].EndsWith(".exe"))
                {
                       // if the address ended with the FileName this code works well
                       Uri u = new Uri(e.Uri.ToString());
                      string filename = Path.GetFileName(ut.LocalPath);
                       MessageBox.Show(fileName);
                }
     }

推荐答案

没有文件名，除非有 Content-Disposition 标题，包括文件名参数它可能类似于：

It doesn't have a "file name", unless there's a Content-Disposition header, including a filename-parm. It might resemble:

Content-Disposition: attachment; filename=FileA.abc

在这种情况下，文件名将为 FileA .abc 。

In that case, the file name would be FileA.abc.

我没有真正使用 WebClient 类，但是，我没有看到任何简单的方式访问标题。您必须切换到使用 HttpWebRequest 和自己做更多的工作。

I've not really worked with the WebClient class, however, and I don't see any easy way to access the headers. You'd have to switch to using HttpWebRequest, and do more work yourself.

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