Asp.Net导出文件名中文乱码

protected void Page_Load(object sender, EventArgs e) ???{string html = “网页html代码”; ???????string fileName = "故事.doc"; ???????DownloadDoc(fileName,html); ???} ???public void DownloadDoc(string fileName, string pageHtml) ???{ ???????//设置Http的头信息,编码格式 ?????????HttpContext.Current.Response.Buffer = true; ???????HttpContext.Current.Response.Clear(); ???????HttpContext.Current.Response.Charset = "gb2312"; ???????HttpContext.Current.Response.ClearContent(); ???????HttpContext.Current.Response.ClearHeaders(); ???????Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312"); ???????HttpContext.Current.Response.ContentType = "application/ms-word"; ???????HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + clFielName(fileName)); ???????//关闭控件的视图状态 ?,如果仍然为true，RenderControl将启用页的跟踪功能，存储与控件有关的跟踪信息 ???????this.EnableViewState = false; ???????HttpContext.Current.Response.Write(pageHtml); ???????HttpContext.Current.Response.End(); ???} ???public string clFielName(string fileName) ???{ ???????System.Web.HttpContext curContext = System.Web.HttpContext.Current; ???????string outputFileName = null; ???????string browser = curContext.Request.UserAgent.ToUpper(); ???????if (browser.Contains("MS") == true && browser.Contains("IE") == true) ???????{ ???????????outputFileName = System.Web.HttpUtility.UrlEncode(fileName); ???????} ???????else if (browser.Contains("FIREFOX") == true) ???????{ ???????????outputFileName = "\"" + fileName + "\""; ???????} ???????else ???????{ ???????????outputFileName = System.Web.HttpUtility.UrlEncode(fileName); ???????} ???????return outputFileName; ???}