好的答案也在这里找到了答案来源

Request.Url.GetLeftPart(UriPartial.Path)

    string url = "http://www.example.com/mypage.aspx?myvalue1=hello&myvalue2=goodbye";
    string path = url.split('?')[0];

这里有一个更简单的解决方案:

var uri = new Uri("http://www.example.com/mypage.aspx?myvalue1=hello&myvalue2=goodbye");
string path = uri.GetLeftPart(UriPartial.Path);

借用这里:截断查询字符串和返回干净的URL c# ASP.net

好的答案也在这里找到了答案来源

Request.Url.GetLeftPart(UriPartial.Path)

Request.RawUrl.Split('?')[0]

仅为url名!!

var canonicallink = Request.Url.Scheme + "://" + Request.Url.Authority + Request.Url.AbsolutePath.ToString();