在一次调用中Request.Url.Host和ApplicationPath

Question

有没有什么办法让HttpContext.Current.Request.Url.Host和HttpContext.Current.Request.ApplicationPath一个电话吗？

像"完整的应用程序URL"？

编辑:澄清 - 我需要的是[]中的部分:

http://[www.mysite.com/mywebapp]/Pages/Default.aspx

我只是出于好奇而问.

编辑2:感谢所有的回复,但没有一个是我正在寻找的.仅供参考,我以这种方式解决了问题(但我仍然有兴趣知道是否有更顺畅的方式):

public string GetWebAppRoot()
{
    if(HttpContext.Current.Request.ApplicationPath == "/")
        return "http://" + HttpContext.Current.Request.Url.Host;
    else
        return "http://" + HttpContext.Current.Request.Url.Host + HttpContext.Current.Request.ApplicationPath;
}

Answer 1

public static string GetSiteRoot()
{
  string port = System.Web.HttpContext.Current.Request.ServerVariables["SERVER_PORT"];
  if (port == null || port == "80" || port == "443")
    port = "";
  else
    port = ":" + port;

  string protocol = System.Web.HttpContext.Current.Request.ServerVariables["SERVER_PORT_SECURE"];
  if (protocol == null || protocol == "0")
    protocol = "http://";
  else
    protocol = "https://";

  string sOut = protocol + System.Web.HttpContext.Current.Request.ServerVariables["SERVER_NAME"] + port + System.Web.HttpContext.Current.Request.ApplicationPath;

  if (sOut.EndsWith("/"))
  {
    sOut = sOut.Substring(0, sOut.Length - 1);
  }

  return sOut;
}

Answer 2

这不能在我的localhost上使用端口号进行修改:

  private string GetWebAppRoot()
    {
        string host = (HttpContext.Current.Request.Url.IsDefaultPort) ? 
            HttpContext.Current.Request.Url.Host : 
            HttpContext.Current.Request.Url.Authority;
        host = String.Format("{0}://{1}", HttpContext.Current.Request.Url.Scheme, host);            
        if (HttpContext.Current.Request.ApplicationPath == "/")
            return host;
        else
            return host + HttpContext.Current.Request.ApplicationPath;
    }

Answer 3

你应该做的是:

return String.Format("{0}://{1}/", Request.Url.Scheme, Request.Url.Host);

这样,如果你使用HTTPS(或其他一些架构!)它的工作原理!