Request.rawurl: Gets the URL information for the client request (not including the host and port)------>/a/default2.aspx
Request.applicationpath: Gets the virtual path of an ASP. NET application on the server. ------>/
Request.currentexecutionfilepath: Gets the virtual path of the current request. ------>/default2.aspx
Request.path: Gets the virtual path of the current request. ------>/default2.aspx
Request.pathinfo: Takes additional path information for a resource with a URL extension------> Http://so.com/page.html/tail, the value is/tail
Request.PhysicalPath: Gets the physical file system path that corresponds to the requested URL. ------>e:\temp\default2.aspx
Request.url: Get the full URL (protocol name + domain + site name + file name + parameter)------>http://www.baidu.com/a/b?c=1
Request.Url.Host: Gets the domain name (not including the port)------>www.baidu.com
Request.Url.Query: Get parameters (starting from)------>? a=1&b=2
Request.Url.LocalPath: Station name + file name------>/default2.aspx
Request.Url.AbsoluteUri: Gets the base Url (without parameters)------>http://localhost:8080/default2.aspx
Request.Url.AbsolutePath: Station name + file name----->/default2.aspx
Reference article: http://www.cnblogs.com/190196539/archive/2011/12/13/2286072.html
ASP. NET gets the URL of the current URL