asp.net 中文乱码以及导出excel乱码的解决方法

private void DataTable2Excel(System.Data.DataTable dtData, String FileName)
        {
                       System.Web.UI.WebControls.GridView dgExport = null;
            //
            System.Web.HttpContext curContext = System.Web.HttpContext.Current;
            //
            System.IO.StringWriter strWriter = null;
            System.Web.UI.HtmlTextWriter htmlWriter = null;

            if (dtData != null)
            {
                // set Encoding and formatting
                //System.Web.HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8)
                curContext.Response.AddHeader("content-disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8) + ".xls");
                curContext.Response.ContentType = "application nd.ms-excel";
                curContext.Response.ContentEncoding = System.Text.Encoding.GetEncoding("utf-7");
                curContext.Response.Charset = "GB2312";

                // export to Excel file
                strWriter = new System.IO.StringWriter();
                htmlWriter = new System.Web.UI.HtmlTextWriter(strWriter);

                //
                dgExport = new System.Web.UI.WebControls.GridView();
                dgExport.DataSource = dtData.DefaultView;
                dgExport.AllowPaging = false;
                dgExport.DataBind();

                // DownLoad to client side
                dgExport.RenderControl(htmlWriter);
                curContext.Response.Write(strWriter.ToString());
                curContext.Response.End();
            }
        }

 

 

    <globalization
          requestEncoding="gb2312"     responseEncoding="gb2312"         fileEncoding="gb2312"  culture="zh-CN"
   />