前台  js

  <script>//导出function Export() {//传递参数var data="paramer";var config = $.extend(true, { method: 'post' }, "/SuppUpd/SetDPGSL");var $iframe = $('<iframe id="down-file-iframe" />');var $form = $('<form target="down-file-iframe" method="' + config.method + '" />');$form.attr('action', "/SuppUpd/SetDPGSL");$form.append('<input type="hidden"  name="datalist" SN=\'' + data + '\' />');$iframe.append($form);$(document.body).append($iframe);$form[0].submit();$iframe.remove();}</script>

　　

后台 Controller

        /// <summary>/// 下载供应商送货单,并将供应商代码写入模板/// </summary>/// <param name="SN"></param>/// <returns></returns>public JsonResult SetDPGSL(string SN){try{//npoi 导出excelstring mubUrl = @"\App_Data\SuppUpd.xls";new ExcelHelper().ExportGetSuppUpdModel(LoginUser.UserID, mubUrl, HttpContext, "送货信息模板" + ".xls");var result = new{result = 1,Msg = "下载成功"};var msg = "供应商送货单模板下载:" + "下载成功：" + LoginUser.UserID;SetAddLog(ServicePageSMSE.SuppUpd, OperateType.imp, msg);return Json(result);}catch (Exception){var result = new{result = 0,Msg = "下载失败"};return Json(result);}}

　　

具体执行方法

        /// <summary>/// 下载供应商送货单,并将供应商代码写入模板固定位置/// </summary>/// <param name="DPG1S1">供应商代码</param> /// <param name="mubUrl">模板地址</param>/// <param name="context"></param>/// <param name="fileName">保存文件名称</param> public void ExportGetSuppUpdModel(string DPG1S1, string mubUrl, HttpContextBase context, string fileName){string road = context.Server.MapPath(mubUrl);FileInfo s = new FileInfo(road);using (FileStream stream = new FileStream(road, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)){#region  Excel样式HSSFWorkbook workbook = new HSSFWorkbook(stream);HSSFSheet sheet = (HSSFSheet)workbook.GetSheetAt(0);workbook.SetSheetName(0, "模板");ICellStyle style = workbook.CreateCellStyle();NPOI.SS.UserModel.IFont font = workbook.CreateFont();font.IsBold = true;font.FontName = "宋体";font.FontHeightInPoints = 13;style.WrapText = true;style.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;style.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;style.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;style.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;style.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;//居中style.VerticalAlignment = VerticalAlignment.Center;//垂直居中style.SetFont(font);//HEAD 样式#endregionIRow row;row = sheet.GetRow(0);row.GetCell(8).SetCellValue(DPG1S1);using (MemoryStream ms = new MemoryStream()){workbook.Write(ms);ms.Position = 0;if (context.Request.Browser.Browser == "IE")fileName = HttpUtility.UrlEncode(fileName);context.Response.AddHeader("Content-Disposition", "attachment;fileName=" + fileName);context.Response.BinaryWrite(ms.ToArray());}}}