网站在服务器磁盘上的物理路径: HttpRuntime.AppDomainAppPath 虚拟程序路径: HttpRuntime.AppDomainAppVirtualPath
任何于Request/HttpContext.Current等相关的方法, 都只能在有请求上下文或者页面时使用. 即在无请求上下文时,HttpContext.Current为null. 而上面提到的方法一直可用.对于全局Cache对象的访问亦然.
示例：输出asp.net 网站路径。
private void responseHtml() { System.Text.StringBuilder sb = new System.Text.StringBuilder(); // 输出:当前时间: 2007-08-30 11:03:49 sb.Append( string .Format( " 当前时间: {0} " , Server.HtmlEncode(DateTime.Now.ToString()))); sb.Append( " <br /> " ); // 当前请求的虚拟路径: /aDirectory/Sample/responseHtml.aspx sb.Append( string .Format( " 当前请求的虚拟路径: {0} " ,Server.HtmlEncode(Request.CurrentExecutionFilePath))); sb.Append( " <br /> " ); // 获取当前应用程序的根目录路径: /aDirectory sb.Append( string .Format( " 获取当前应用程序的根目录路径: {0} " , Server.HtmlEncode(Request.ApplicationPath))); sb.Append( " <br /> " ); // 当前请求的虚拟路径: /aDirectory/Sample/responseHtml.aspx sb.Append( string .Format( " 当前请求的虚拟路径: {0} " ,Server.HtmlEncode(Request.FilePath))); sb.Append( " <br /> " ); // 当前请求的虚拟路径: /aDirectory/Sample/responseHtml.aspx sb.Append( string .Format( " 当前请求的虚拟路径: {0} " ,Server.HtmlEncode(Request.Path))); sb.Append( " <br /> " ); // 获取当前正在执行的应用程序的根目录的物理文件系统路径: E:\Visual Studio 2005\ sb.Append( string .Format( " 获取当前正在执行的应用程序的根目录的物理文件系统路径: {0} " , Server.HtmlEncode(Request.PhysicalApplicationPath))); sb.Append( " <br /> " ); // 获取与请求的 URL 相对应的物理文件系统路径: E:\Visual Studio 2005\\aDirectory\ sb.Append( string .Format( " 获取与请求的 URL 相对应的物理文件系统路径: {0} " , Server.HtmlEncode(Request.PhysicalApplicationPath))); sb.Append( " <br /> " ); Response.Write(sb.ToString()); }
在ASP.NET编程中经常需要用Request获取url的有关信息.测试的url地址是http://www.test.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.PathInfo: 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.AbsoluteUri: http://www.test.com/testweb/default.aspx Request.Url.Host: www.test.com Request.Url.LocalPath: /testweb/default.aspx 当url中带参数时可以使用: HttpContext.Current.Request.Url.PathAndQuery.ToString()// 本页地址: Request.URL; 上页地址: Request.UrlReferrer Request.ServerViables["http_referer"] Request.RawUrl Request.RawUrl.QueryAndPath System.IO.Path.GetFileName(Request.FilePath.ToString())获取网站根目录的url源代码--2010.05.09http://www.xueit.com/html/2009-03/21_932_00.html
public static string GetRootURI() { string AppPath = "" ; HttpContext HttpCurrent = HttpContext.Current; HttpRequest Req; if (HttpCurrent != null ) { Req = HttpCurrent.Request; string UrlAuthority = Req.Url.GetLeftPart(UriPartial.Authority); if (Req.ApplicationPath == null || Req.ApplicationPath == " / " ) // 直接安装在 Web 站点 AppPath = UrlAuthority; else // 安装在虚拟子目录下 AppPath = UrlAuthority + Req.ApplicationPath; } return AppPath; }
可修改为静态属性 private static string rootURI; /// <summary> /// 获得网站根目录的url的函数 /// </summary> /// <returns> 应用程序根目录 eg: </returns> public static string RootURI { get { if ( string .IsNullOrEmpty(rootURI)) { HttpContext HttpCurrent = HttpContext.Current; HttpRequest Req; if (HttpCurrent != null ) { Req = HttpCurrent.Request; string UrlAuthority = Req.Url.GetLeftPart(UriPartial.Authority); if (Req.ApplicationPath == null || Req.ApplicationPath == " / " ) // 直接安装在 Web 站点 rootURI = UrlAuthority; else // 安装在虚拟子目录下 rootURI = UrlAuthority + Req.ApplicationPath; } } return rootURI; } }