概述

导出excel文件，而且文件带有复杂的表头格式并有二维码信息。前端界面是easyui，后端是.net（用ashx方式），使用了NPOI和Qrcode，本示例还增加了页面参数传值，实现的思路很简单：

查出我们期望的数据集DataTable以下简称dt
独立绘制表头单元格，填充概要信息和表头样式
将sheet页填充数据的单元格进行整理，按需合并单元格，设置样式
填充数据

希望实现的效果如下图所示

前端页面

//打印的js代码
function Print() {var tbxBoxno = $("#tbxBoxno").textbox('getValue');   //页面传值参数：箱单号
var tbxDBno = $("#tbxDBno").textbox('getValue');     //页面传值参数：批次号
var filename = "../../Controller/InvoiceManage/InvoiceImport.ashx?Action=ExportDetails&Boxno=" + encodeURIComponent(tbxBoxno) + "&DBno=" + encodeURIComponent(tbxDBno);
location.href = filename;
}

//打印按钮html代码
<a id="btnPrinter" href="javascript:void(0)" class="easyui-linkbutton" data-options="iconCls:'icon-printer'" onclick="Print()">打印</a>

后端页面（导出excel的完整代码）

//InvoiceImport.ashx文件
public void ProcessRequest(HttpContext context)
{context.Response.ContentType = "text/plain";//context.Response.Write("Hello World");//获取请求的动作string action = context.Request["Action"];if (string.IsNullOrEmpty(action)) return;//页面参数long projectId = Int64.Parse(Encrypt.Base64Decrypt(CookiesHelper.GetCookie_l("MC_pId"))); //通过cookie方式页面传值参数：项目IDstring domainName = Encrypt.Base64Decrypt(CookiesHelper.GetCookie_l("MC_doNa"));           通过cookie方式页面传值参数：域登录名InvoiceImport Invoice = new InvoiceImport();   //封装好的业务类，查询dt用DataTable json_data_details = new DataTable();string json_stream_details = string.Empty;string json_stream_format_details = string.Empty;switch (action){case "ExportDetails":// 打印箱单#region 数据整理string BoxnoImp = HttpUtility.UrlDecode(context.Request["Boxno"].ToString());       //对接收的字符串进行URL解码;string DBnoImp = HttpUtility.UrlDecode(context.Request["DBno"].ToString());string PartNumberImp = "";DataTable dtImp = Invoice.GetDetailwithDesc(BoxnoImp, DBnoImp, PartNumberImp, projectId);  //dtImp就是我们的dt//概要数据long ImpProjectId = projectId;string ImpPONo = dtImp.Rows[0]["合同号"].ToString();           //合同号string ImpPOName = dtImp.Rows[0]["合同名称"].ToString();           //合同号string ImpDiscipline = dtImp.Rows[0]["专业"].ToString();         //专业名称string ImpProductPlace = dtImp.Rows[0]["原产地"].ToString();     //原产地string ImpInvoiceDate = dtImp.Rows[0]["登记时间"].ToString();    //箱单登记时间string ImpPackageNo = dtImp.Rows[0]["采购包号"].ToString(); ;    //采购包编号string ImpBoxNo = dtImp.Rows[0]["箱号"].ToString();              //箱号string ImpBacthNo = dtImp.Rows[0]["物流批次号"].ToString();       //物流批次号string ImpVendorName = dtImp.Rows[0]["企业简称"].ToString();string ImpSheetName = "Detailed Packing List  详细装箱清单";WEC.Material.Utilitys.Report imp = new WEC.Material.Utilitys.Report();string ImpProjName = imp.GetProjectName(ImpProjectId.ToString(), WEC.Material.Utilitys.Report.Language.Chinese);    //自己写的方法查询项目全称#endregion#region 报表输出int rowOfTitle = 5;      //表头概要信息的行数HSSFWorkbook hssfworkbook = new HSSFWorkbook();MemoryStream ms = new MemoryStream();//表头字体IFont fontInTitle = hssfworkbook.CreateFont();fontInTitle.Color = HSSFColor.BLACK.index;fontInTitle.FontHeightInPoints = 11;fontInTitle.Boldweight = (short)FontBoldWeight.BOLD;fontInTitle.FontName = "Times New Roman";//数据字体IFont fontInData = hssfworkbook.CreateFont();fontInData.Color = HSSFColor.BLACK.index;fontInData.FontHeightInPoints = 10;fontInData.Boldweight = 10;fontInData.FontName = "Times New Roman";//表头cell样式ICellStyle cellStyleOfTitle = hssfworkbook.CreateCellStyle();cellStyleOfTitle.IsLocked = true;cellStyleOfTitle.SetFont(fontInTitle);cellStyleOfTitle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.CENTER;cellStyleOfTitle.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.CENTER;cellStyleOfTitle.WrapText = true;cellStyleOfTitle.BorderTop = NPOI.SS.UserModel.BorderStyle.THIN;cellStyleOfTitle.BorderBottom = NPOI.SS.UserModel.BorderStyle.THIN;cellStyleOfTitle.BorderLeft = NPOI.SS.UserModel.BorderStyle.THIN;cellStyleOfTitle.BorderRight = NPOI.SS.UserModel.BorderStyle.THIN;//数据cell样式（未锁定）ICellStyle unlocked = hssfworkbook.CreateCellStyle();unlocked.IsLocked = false;unlocked.SetFont(fontInData);unlocked.Alignment = NPOI.SS.UserModel.HorizontalAlignment.CENTER;unlocked.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.CENTER;unlocked.WrapText = true;unlocked.BorderTop = NPOI.SS.UserModel.BorderStyle.THIN;unlocked.BorderBottom = NPOI.SS.UserModel.BorderStyle.THIN;unlocked.BorderLeft = NPOI.SS.UserModel.BorderStyle.THIN;unlocked.BorderRight = NPOI.SS.UserModel.BorderStyle.THIN;//数据cell样式（锁定）ICellStyle locked = hssfworkbook.CreateCellStyle();locked.IsLocked = true;locked.SetFont(fontInData);locked.Alignment = NPOI.SS.UserModel.HorizontalAlignment.CENTER;locked.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.CENTER;locked.WrapText = true;locked.BorderTop = NPOI.SS.UserModel.BorderStyle.THIN;locked.BorderBottom = NPOI.SS.UserModel.BorderStyle.THIN;locked.BorderLeft = NPOI.SS.UserModel.BorderStyle.THIN;locked.BorderRight = NPOI.SS.UserModel.BorderStyle.THIN;//sheet页名称ISheet sheet1 = hssfworkbook.CreateSheet("Detailed Packing List");sheet1.DefaultColumnWidth = 2;#region 表头初始化//概要信息前三行IRow[] rowsOfTitle = new IRow[rowOfTitle];for (int i = 0; i < rowOfTitle; i++){rowsOfTitle[i] = sheet1.CreateRow(i);IRow row = rowsOfTitle[i];if (i < 3){row.HeightInPoints = 23;}else{row.HeightInPoints = 16;}}//画公司图标string imageUrl = System.Web.HttpContext.Current.Server.MapPath("~/Content/logo/logo_doc.jpg");byte[] bytes = System.IO.File.ReadAllBytes(imageUrl);int pictureIdx = hssfworkbook.AddPicture(bytes, PictureType.JPEG);HSSFPatriarch patriarch = (HSSFPatriarch)sheet1.CreateDrawingPatriarch();// 插图片的位置  HSSFClientAnchor（dx1,dy1,dx2,dy2,col1,row1,col2,row2) 后面再作解释//dx1: 图片左边相对excel格的位置(x偏移) 范围值为: 0~1023; 即输100 偏移的位置大概是相对于整个单元格的宽度的100除以1023大概是10分之一//dy1: 图片上方相对excel格的位置(y偏移) 范围值为: 0~256 原理同上。//dx2: 图片右边相对excel格的位置(x偏移) 范围值为: 0~1023; 原理同上。//dy2: 图片下方相对excel格的位置(y偏移) 范围值为: 0~256 原理同上。//col1和row1: 图片左上角的位置，以excel单元格为参考,比喻这两个值为(1, 1)，那么图片左上角的位置就是excel表(1, 1)单元格的右下角的点(A, 1)右下角的点。//col2和row2: 图片右下角的位置，以excel单元格为参考,比喻这两个值为(2, 2)，那么图片右下角的位置就是excel表(2, 2)单元格的右下角的点(B, 2)右下角的点。//把图片插到相应的位置HSSFPicture pict = (HSSFPicture)patriarch.CreatePicture(anchor, pictureIdx);//公司名称单元格合并ICell cellOfCompanyName = rowsOfTitle[0].CreateCell(0);//cellOfCompanyName.SetCellValue(ImpLongName);CellRangeAddress region = new CellRangeAddress(0, 2, 0, 9);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//项目名称ICell cellOfProjectName = rowsOfTitle[0].CreateCell(10);cellOfProjectName.SetCellValue(ImpProjName);region = new CellRangeAddress(0, 0, 10, 29);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//合同名称ICell cellOfPurchaseName = rowsOfTitle[1].CreateCell(10);cellOfPurchaseName.SetCellValue(ImpPOName);region = new CellRangeAddress(1, 1, 10, 29);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//表格名称ICell cellOfPurchase = rowsOfTitle[2].CreateCell(10);cellOfPurchase.SetCellValue(ImpSheetName);region = new CellRangeAddress(2, 2, 10, 29);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//专业ICell cellOfEnquiry = rowsOfTitle[0].CreateCell(30);cellOfEnquiry.SetCellValue("专业");region = new CellRangeAddress(0, 0, 30, 33);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//供应商ICell cellOfPurchaseBag = rowsOfTitle[1].CreateCell(30);cellOfPurchaseBag.SetCellValue("供应商");region = new CellRangeAddress(1, 1, 30, 33);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//原产地ICell cellOfSpecial = rowsOfTitle[2].CreateCell(30);cellOfSpecial.SetCellValue("原产地");region = new CellRangeAddress(2, 2, 30, 33);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//专业ICell cellOfDisc = rowsOfTitle[0].CreateCell(34);cellOfDisc.SetCellValue(ImpDiscipline);region = new CellRangeAddress(0, 0, 34, 40);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//供应商ICell cellOfVendor = rowsOfTitle[1].CreateCell(34);cellOfVendor.SetCellValue(ImpVendorName);region = new CellRangeAddress(1, 1, 34, 40);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//原产地ICell cellOfProductPlace = rowsOfTitle[2].CreateCell(34);cellOfProductPlace.SetCellValue(ImpProductPlace);region = new CellRangeAddress(2, 2, 34, 40);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//合同号ICell cellOfPO = rowsOfTitle[0].CreateCell(41);cellOfPO.SetCellValue("合同号");region = new CellRangeAddress(0, 0, 41, 44);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//箱号ICell cellOfBox = rowsOfTitle[1].CreateCell(41);cellOfBox.SetCellValue("箱号");region = new CellRangeAddress(1, 1, 41, 44);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//物流批次号ICell cellOfBatch = rowsOfTitle[2].CreateCell(41);cellOfBatch.SetCellValue("物流批次号");region = new CellRangeAddress(2, 2, 41, 44);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//合同号ICell cellOfPOValue = rowsOfTitle[0].CreateCell(45);cellOfPOValue.SetCellValue(ImpPONo);region = new CellRangeAddress(0, 0, 45, 55);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//箱号ICell cellOfBoxValue = rowsOfTitle[1].CreateCell(45);cellOfBoxValue.SetCellValue(ImpBoxNo);region = new CellRangeAddress(1, 1, 45, 55);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//物流批次号ICell cellOfBatchValue = rowsOfTitle[2].CreateCell(45);cellOfBatchValue.SetCellValue(ImpBacthNo);region = new CellRangeAddress(2, 2, 45, 55);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);//放置二维码单元格ICell cellOfQRValue = rowsOfTitle[2].CreateCell(56);//cellOfQRValue.SetCellValue(ImpBacthNo);region = new CellRangeAddress(0, 2, 56, 59);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);#endregion#region 二维码处理//画二维码MemoryStream msqr = new MemoryStream();ErrorCorrectionLevel Ecl = ErrorCorrectionLevel.M;  //误差校正水平   //二维码需要加密，再简单的加密也比明文裸奔强//我的二维码是扫描之后自动跳转到管理系统的一个确认页面，大家在这里可以自由发挥string projectIdEcode = DES.Encode(projectId.ToString());string domainNameEcode = DES.Encode(domainName.ToString());string ImpBoxNoEcode = DES.Encode(ImpBoxNo.ToString());string ImpBacthNoEcode = DES.Encode(ImpBacthNo.ToString());string url = "https://你的二级域名.你的公司域名.com:8088/Invoice/Index?projectID="+ projectIdEcode + "&ITCode="+ domainNameEcode + "&boxNo="+ ImpBoxNoEcode + "&shippingNo="+ ImpBacthNoEcode;string Content = url;                          //待编码内容  QuietZoneModules QuietZones = QuietZoneModules.Zero;  //空白区域   int ModuleSize = 12;//大小  var encoder = new QrEncoder(Ecl);QrCode qr;if (encoder.TryEncode(Content, out qr))//对内容进行编码，并保存生成的矩阵  {GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(ModuleSize, QuietZones));render.WriteToStream(qr.Matrix, ImageFormat.Png, msqr);}byte[] bytesQR = StreamToBytes(msqr);int pictureIdxQR = hssfworkbook.AddPicture(bytesQR, PictureType.PNG);HSSFPatriarch patriarchQR = (HSSFPatriarch)sheet1.CreateDrawingPatriarch();HSSFClientAnchor anchorQR = new HSSFClientAnchor(450, 30, 590, 220, 56, 0, 59, 2);//把图片插到相应的位置，这个坐标要有耐心慢慢调整HSSFPicture pictQR = (HSSFPicture)patriarchQR.CreatePicture(anchorQR, pictureIdxQR);#endregion#region 字段初始化//字段样式："序号", "箱号", "合同号", "材料编码", "位号", "主项号", "材料名称", "材料描述", "数量", "单位", "备注"//2, 7, 7, 4, 4, 4, 5, 15, 3, 3, 6  //这串数字表示每各数据列占据几个固定单位列，每个固定单位宽度的列宽度为3ICell cellOfNUMInTitle = rowsOfTitle[3].CreateCell(0);cellOfNUMInTitle.SetCellValue("序号\nSN.");region = new CellRangeAddress(3, 4, 0, 1);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfBoxInTitle = rowsOfTitle[3].CreateCell(2);cellOfBoxInTitle.SetCellValue("箱号\nPackage No.");region = new CellRangeAddress(3, 4, 2, 8);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfPurchaseIDInTitle = rowsOfTitle[3].CreateCell(9);cellOfPurchaseIDInTitle.SetCellValue("合同号\nPurchase No.");region = new CellRangeAddress(3, 4, 9, 15);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfMaterialNameInTitle = rowsOfTitle[3].CreateCell(16);cellOfMaterialNameInTitle.SetCellValue("材料编码\n Part No.");region = new CellRangeAddress(3, 4, 16, 19);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfMaterialCodeInTitle = rowsOfTitle[3].CreateCell(20);cellOfMaterialCodeInTitle.SetCellValue("位号\n Tag No.");region = new CellRangeAddress(3, 4, 20, 23);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfDesignInTitle = rowsOfTitle[3].CreateCell(24);cellOfDesignInTitle.SetCellValue("主项号\n Area");region = new CellRangeAddress(3, 4, 24, 27);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfMainItemNoInTitle = rowsOfTitle[3].CreateCell(28);cellOfMainItemNoInTitle.SetCellValue("材料名称\n Name");region = new CellRangeAddress(3, 4, 28, 32);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfMainItemDescInTitle = rowsOfTitle[3].CreateCell(33);cellOfMainItemDescInTitle.SetCellValue("材料描述\n Description");region = new CellRangeAddress(3, 4, 33, 47);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfMainItemNumInTitle = rowsOfTitle[3].CreateCell(48);cellOfMainItemNumInTitle.SetCellValue("数量\nQty.");region = new CellRangeAddress(3, 4, 48, 50);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfMainItemNuitInTitle = rowsOfTitle[3].CreateCell(51);cellOfMainItemNuitInTitle.SetCellValue("单位\nUnit");region = new CellRangeAddress(3, 4, 51, 53);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);ICell cellOfRemarkInTitle = rowsOfTitle[3].CreateCell(54);cellOfRemarkInTitle.SetCellValue("备注\nRemark");region = new CellRangeAddress(3, 4, 54, 59);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, cellStyleOfTitle);#endregion#region 填充材料数据int dataCount = dtImp.Rows.Count;IRow[] rowsOfData = new IRow[dataCount];for (int i = 0; i < dataCount; i++){int currentRowNum = i + 5;rowsOfData[i] = sheet1.CreateRow(currentRowNum);IRow currentRow = rowsOfData[i];currentRow.HeightInPoints = 28;ICell cellInData = currentRow.CreateCell(0);cellInData.SetCellValue(dtImp.Rows[i]["序号"].ToString());//序号region = new CellRangeAddress(currentRowNum, currentRowNum, 0, 1);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(2);cellInData.SetCellValue(dtImp.Rows[i]["箱号"].ToString());//箱号region = new CellRangeAddress(currentRowNum, currentRowNum, 2, 8);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(9);cellInData.SetCellValue(dtImp.Rows[i]["合同号"].ToString());//合同号region = new CellRangeAddress(currentRowNum, currentRowNum, 9, 15);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(16);cellInData.SetCellValue(dtImp.Rows[i]["材料编码"].ToString());//材料编码region = new CellRangeAddress(currentRowNum, currentRowNum, 16, 19);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(20);cellInData.SetCellValue(dtImp.Rows[i]["位号"].ToString());//位号region = new CellRangeAddress(currentRowNum, currentRowNum, 20, 23);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(24);cellInData.SetCellValue(dtImp.Rows[i]["主项号"].ToString());//主项号region = new CellRangeAddress(currentRowNum, currentRowNum, 24, 27);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(28);cellInData.SetCellValue(dtImp.Rows[i]["材料名称"].ToString());//材料名称region = new CellRangeAddress(currentRowNum, currentRowNum, 28, 32);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(33);cellInData.SetCellValue(dtImp.Rows[i]["材料描述"].ToString());//描述region = new CellRangeAddress(currentRowNum, currentRowNum, 33, 47);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(48);cellInData.SetCellValue(WEC.Material.Utilitys.Util.turnStringToDouble(dtImp.Rows[i]["发货量"].ToString()));//数量region = new CellRangeAddress(currentRowNum, currentRowNum, 48, 50);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(51);cellInData.SetCellValue(dtImp.Rows[i]["计量单位"].ToString());//单位region = new CellRangeAddress(currentRowNum, currentRowNum, 51, 53);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);cellInData = currentRow.CreateCell(54);cellInData.SetCellValue(dtImp.Rows[i]["补充说明"].ToString());//备注region = new CellRangeAddress(currentRowNum, currentRowNum, 54, 59);sheet1.AddMergedRegion(region);MakeRegionAndSetStyle(sheet1, region, locked);}#endregionsheet1.ProtectSheet("password");  //设置文档保护密码#region  打印设置sheet1.SetMargin(MarginType.TopMargin, 2.1);sheet1.SetMargin(MarginType.BottomMargin, 1.5);sheet1.SetMargin(MarginType.RightMargin, 1.5);sheet1.SetMargin(MarginType.LeftMargin, 1.0);sheet1.PrintSetup.NoColor = true;sheet1.PrintSetup.Landscape = true;sheet1.PrintSetup.PaperSize = (short)PaperSize.A4;sheet1.FitToPage = true;sheet1.PrintSetup.FitHeight = 2;sheet1.PrintSetup.FitWidth = 3;sheet1.IsPrintGridlines = true;#endregion//设置文件名string str_Impname = "箱单_" + ImpBoxNo + "_" + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + ".xls";#endregion#region 输出string str_rptname = string.Empty;//解决中文文件名乱码只在IE中有效//filename = HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8);if (context.Request.UserAgent.ToLower().IndexOf("msie") > -1){//当客户端使用IE时，对其进行编码；//使用 ToHexString 代替传统的 UrlEncode()；str_rptname = WEC.Material.Utilitys.CommonHelper.ToHexString(str_Impname);}if (context.Request.UserAgent.ToLower().IndexOf("firefox") > -1){//为了向客户端输出空格，需要在当客户端使用 Firefox 时特殊处理context.Response.AddHeader("Content-Disposition", "attachment;filename=\"" + str_Impname + "\"");}elsecontext.Response.AddHeader("Content-Disposition", "attachment;filename=" + str_Impname);string ImpExtension = Path.GetExtension(str_Impname);context.Response.ContentType = CommonHelper.GetMimeType(ImpExtension);context.Response.ContentEncoding = Encoding.UTF8;context.Response.Clear();MemoryStream Excelfile = new MemoryStream();hssfworkbook.Write(Excelfile);Excelfile.WriteTo(HttpContext.Current.Response.OutputStream);HttpContext.Current.Response.End();#endregionbreak;}
}

两个private方法

///设置范围的样式
private static void MakeRegionAndSetStyle(ISheet sheet, CellRangeAddress region, ICellStyle style)
{for (int i = region.FirstRow; i <= region.LastRow; i++){IRow row = sheet.GetRow(i);for (int j = region.FirstColumn; j <= region.LastColumn; j++){ICell singleCell = HSSFCellUtil.GetCell(row, (short)j);singleCell.CellStyle = style;}}}/// 将 Stream 转成 byte[]
private byte[] StreamToBytes(Stream stream)
{byte[] bytes = new byte[stream.Length];// 设置当前流的位置为流的开始stream.Seek(0, SeekOrigin.Begin);stream.Read(bytes, 0, bytes.Length);return bytes;
}

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EasyUI入门9 EasyUI+NPOI+QrCode实现带二维码复杂格式excel文件导出

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前端页面

后端页面（导出excel的完整代码）

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