.Net core_Excel 导出二维码（以导出箱单为例）

[AccessLogAttribute(Note = "导出条形码箱单 — 条形码")]
public ActionResult ExportContract(string INNER_NO)
{

try
{
string export = "条形码箱单.xls";
CommonResult cr = new CommonResult();
DataSet ds = new DataSet();

//获得表头数据  
DataTable dtHead1 = new DataTable();

//获得方法  具体参数可以根据需要传
dtHead1 = tab1Servcie.QRGetInvoiceFirstHead(INNER_NO, CurrentCorporation.SITE);

//获得表体数据
DataTable dtList1 = new DataTable();
dtList1 = tab1Servcie.QRGetInvoiceFirstList(INNER_NO, CurrentCorporation.SITE);
ds.Tables.Add(dtHead1);
ds.Tables.Add(dtList1);

//导出（需要配置XML）
ds.Tables[0].TableName = "Export_Invoice_QR_HEAD";
ds.Tables[1].TableName = "Export_Invoice_QR_LIST";
Dictionary<string, List<ExportItem>> dicMapping = FileHelper.GetMappingDictionary(this, "WExport.xml", false, "Export_Invoice_QR");
Dictionary<string, string> dicSheetName = new Dictionary<string, string>();
dicSheetName.Add("Export_Invoice_QR", "装箱单");
return Step3(export.Substring(0, export.Length - 4), ds, dicMapping, dicSheetName, GetFilePhysicalPath("/Content/ExportTemplate/Dec/" + export, false), INNER_NO);
}
catch (Exception e)
{
CommonResult cr = new CommonResult();
cr.ErrorMessage = e.Message;
return Json(cr);
}
}

/// <summary>
/// 打印二维码
/// </summary>
/// <param name="fileName"></param>
/// <param name="ds"></param>
/// <param name="dicMapping"></param>
/// <param name="dicSheetName"></param>
/// <param name="tempaltePath"></param>
/// <param name="inner_no">内部编号（数据的标识编号）</param>
/// <returns></returns>
public ActionResult Step3(string fileName, DataSet ds, Dictionary<string, List<ExportItem>> dicMapping, Dictionary<string, string> dicSheetName, string tempaltePath, string inner_no)
{
string path1 = "";
CommonResult commonResult = new CommonResult();
try
{
//地址
string a = Path.GetExtension(tempaltePath);
commonResult.ErrorMessage = NPOIHelper.SaveExcel(fileName, NPOIHelper.ExportToMemoryStream(ds, dicMapping, dicSheetName, tempaltePath, false), Path.GetExtension(tempaltePath));
commonResult.Success = true;
commonResult.Data1 = AppDomain.CurrentDomain.BaseDirectory + commonResult.ErrorMessage;
path1 = commonResult.Data1;
commonResult.ErrorMessage = BaseController.Host + BaseController.ApplicationPath + commonResult.ErrorMessage;
FileStream file = new FileStream(@commonResult.Data1, FileMode.Open, FileAccess.ReadWrite);
HSSFWorkbook excelBook = new HSSFWorkbook(file);
ISheet sheet = excelBook.GetSheet("装箱单");
List<PIDMSHNotifyThird> lists = tab1Servcie.GetThirdList(inner_no, CurrentCorporation.SITE);
//拆分 生产日期 生产批号 数量
Image image;
int width =200, height = 60;
int lastRow = lists.Count * 30;
for (int k = 0; k < lastRow; k++)
{

//创建行 （如果不创建会出现二维码积压覆盖） 
IRow row = sheet.CreateRow(28 + k); //创建行对象 --注意这点
row.HeightInPoints = (float)(0.91 * 15.00);

for (int line = 0; line < 13; line++)
{
ICell cell1 = row.CreateCell(line); //在第二行中创建单元格
ICellStyle style = excelBook.CreateCellStyle();
}
}

//自适应界面
//for (int i = 0; i < lists.Count; i++)
//{
// int _Row = 16;
// int currLine = _Row + i * 4;
// int rowCount = sheet.LastRowNum;
// if (i % 9 == 0 && i != 0)
// {
// currLine = currLine + 4;
// }
// excelBook.SetPrintArea(0, 0, 10, 0, 30);
// //是否自适应界面
// sheet.FitToPage = false;
//}
excelBook.SetPrintArea(0, 0, 10, 0, lastRow);
//是否自适应界面
sheet.FitToPage = false;
int result = 28;

for (int i = 0; i < lists.Count; i++)
{
string[] strCount = null;
if (lists[i].NET_WT_SEP!=null)
{
strCount = lists[i].NET_WT_SEP.Split(','); //数量分批
}
string[] strNo = null;
if (lists[i].PROD_BATCH_NO_SEP!=null)
{
strNo = lists[i].PROD_BATCH_NO_SEP.Split(','); //生产批号分批
}
string[] strDate = null;
if (lists[i].PRODUCE_DATE!=null)
{
strDate = lists[i].PRODUCE_DATE.Split(','); //生产日期分批
}

if (strCount.Length== strNo.Length&& strNo.Length== strDate.Length&& strNo.Length!=0 && strDate!=null && strNo != null && strCount != null)
{

for (int j = 0; j < strCount.Length; j++)
{
//[Display(Name = "客户货号")]
//public string NOTE { get; set; }
if (lists[i].NOTE != null)
{
byte[] note = GetBarcode(height, width, BarcodeLib.TYPE.CODE128, lists[i].NOTE, out image);
sheet.GetRow((j+1) * 4 + result).GetCell(1).SetCellValue(lists[i].NOTE);
int pictureIdx = excelBook.AddPicture(note, PictureType.PNG);
HSSFPatriarch patriarch = (HSSFPatriarch)sheet.CreateDrawingPatriarch();
HSSFClientAnchor anchor = new HSSFClientAnchor(100, 50, 950, 0, 0, result+1 + (j + 1) * 4, 2, result+3 + (j + 1) * 4);
HSSFPicture pict = (HSSFPicture)patriarch.CreatePicture(anchor, pictureIdx);
}

// string[] strNo = lists[i].PROD_BATCH_NO_SEP.Split(','); //生产批号分批
if (strNo[j]!= null)
{
byte[] prod = GetBarcode(height, width, BarcodeLib.TYPE.CODE128, strNo[j], out image);
sheet.GetRow((j + 1) * 4 + result).GetCell(4).SetCellValue(strNo[j]);
int pictureIdx1 = excelBook.AddPicture(prod, PictureType.PNG);
HSSFPatriarch patriarch1 = (HSSFPatriarch)sheet.CreateDrawingPatriarch();
HSSFClientAnchor anchor1 = new HSSFClientAnchor(300, 50, 900, 0, 3, result + 1+ (j + 1) * 4, 5, result + 3 + (j + 1) * 4);
HSSFPicture pict1 = (HSSFPicture)patriarch1.CreatePicture(anchor1, pictureIdx1);
}

// string[] strCount = lists[i].NET_WT_SEP.Split(','); //数量分批
if (strCount[j] != null)
{
byte[] net_no = GetBarcode(height, width, BarcodeLib.TYPE.CODE128, strCount[j], out image);
sheet.GetRow((j + 1) * 4 + result).GetCell(6).SetCellValue(strCount[j]);
int pictureIdx2 = excelBook.AddPicture(net_no, PictureType.PNG);
HSSFPatriarch patriarch2 = (HSSFPatriarch)sheet.CreateDrawingPatriarch();
HSSFClientAnchor anchor2 = new HSSFClientAnchor(300, 50, 500, 0, 6, result + 1 + (j + 1) * 4, 7, result + 3 + (j + 1) * 4);
HSSFPicture pict2 = (HSSFPicture)patriarch2.CreatePicture(anchor2, pictureIdx2);
}

// string[] strDate = lists[i].PRODUCE_DATE.Split(','); //生产日期分批
if (strDate[j] != null)
{
byte[] prodce = GetBarcode(height, width, BarcodeLib.TYPE.CODE128, strDate[j], out image);
sheet.GetRow((j + 1) * 4 + result).GetCell(9).SetCellValue(strDate[j]);
int pictureIdx3 = excelBook.AddPicture(prodce, PictureType.PNG);
HSSFPatriarch patriarch3 = (HSSFPatriarch)sheet.CreateDrawingPatriarch();
HSSFClientAnchor anchor3 = new HSSFClientAnchor(300, 50, 500, 0, 8, result + 1 + (j + 1) * 4, 10, result + 3 + (j + 1) * 4);
HSSFPicture pict3 = (HSSFPicture)patriarch3.CreatePicture(anchor3, pictureIdx3);
}
if (j+1== strCount.Length)
{
result = result + (j + 1) * 4;
}

}
}
}

string FileN = "/Temp/Export/" + fileName + CommonHelper.GetGuid() + ".xls";
string path = AppDomain.CurrentDomain.BaseDirectory + FileN;
commonResult.Data1 = path;
commonResult.ErrorMessage = BaseController.Host + BaseController.ApplicationPath + FileN;
FileStream files = new FileStream(@path, FileMode.Append);
excelBook.Write(files);
//释放文件流
file.Close();
file.Dispose();
files.Close();
files.Dispose();
}
catch (Exception ex)
{
commonResult.ErrorMessage = ex.Message;
}
finally
{

}
return base.Json(commonResult, 0);
}

static byte[] GetBarcode(int height, int width, TYPE type, string code, out Image image)
{
image = null;
Barcode b = new Barcode();
b.BackColor = Color.White;
b.ForeColor = Color.Black;
b.IncludeLabel = false;
b.Alignment = AlignmentPositions.CENTER;
b.LabelPosition = LabelPositions.BOTTOMCENTER;
b.ImageFormat = ImageFormat.Jpeg;
Font font = new Font("verdana", 10f);
b.LabelFont = font;
b.Height = height;
b.Width = width;
b.Encode(type, code);
byte[] buffer = b.GetImageData(SaveTypes.JPG);
return buffer;
}