用HttpContext.Current.Request.Url.PathAndQuery1
正确的方法是：HttpContext.Current.Request.Url.PathAndQuery1、通过ASP.NET获取
如果测试的url地址是http://www.yyjcw.com/testweb/default.aspx, 结果如下：
Request.ApplicationPath:                 /testweb
Request.CurrentExecutionFilePath:        /testweb/default.aspx
Request.FilePath:                        /testweb/default.aspx
Request.Path:                            /testweb/default.aspx
Request.PhysicalApplicationPath:         E:\WWW\testweb
Request.PhysicalPath:                    E:\WWW\testweb\default.aspx
Request.RawUrl:                          /testweb/default.aspx
Request.Url.AbsolutePath:                /testweb/default.aspx
Request.Url.AbsoluteUrl:                http://www.yyjcw.com/testweb/default.aspx
Request.Url.Host:                       http://www.yyjcw.com/
Request.Url.LocalPath:                   /testweb/default.aspx