.NET Core 使用PDF打印

第一种方式  套打 （先做好PDF模版  在程序中只是填充数据）

1.先用word制作好模版  然后另存为pdf格式

2.下载adobe acrobat pro   

3.选择工具    准备表单   会自动把没有内容的td单元格   还有___  这种可以填的地方设置key值

4.需要导入iTextsharp这个包  如果没有就导入  iTextSharp.LGPLv2.Core

        public FileResult DemoViewAsPdf()
        {
            //return null;
            //获取中文字体，第三个参数表示为是否潜入字体，但只要是编码字体就都会嵌入。
            BaseFont baseFont = BaseFont.CreateFont(@"C:WindowsFontssimsun.ttc,1", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
            //读取模板文件
            PdfReader reader = new PdfReader(@"C:UsersjiangchengbiaoDesktop第一个打印文档.pdf");

            //创建文件流用来保存填充模板后的文件
            MemoryStream stream = new MemoryStream();

            PdfStamper stamp = new PdfStamper(reader, stream);
            //设置表单字体，在高版本有用，高版本加入这句话就不会插入字体，低版本无用
            //stamp.AcroFields.AddSubstitutionFont(baseFont);

            AcroFields form = stamp.AcroFields;

            //表单文本框是否锁定
            stamp.FormFlattening = true;

            Dictionary<string, string> para = new Dictionary<string, string>();
            para.Add("name", "蒋承标");
            para.Add("age", "22");
            para.Add("sex", "男");
            para.Add("identity", "330328");

            //填充表单,para为表单的一个（属性-值）字典
            foreach (KeyValuePair<string, string> parameter in para)
            {
                //要输入中文就要设置域的字体;
                form.SetFieldProperty(parameter.Key, "textfont", baseFont, null);
                //为需要赋值的域设置值;
                form.SetField(parameter.Key, parameter.Value);
            }

            //按顺序关闭io流

            stamp.Close();
            reader.Close();
            //生成文件
            FileResult fileResult = new FileContentResult(stream.ToArray(), "application/pdf");
            //设置了这个属性就是下载
            //fileResult.FileDownloadName = "4.pdf";
            return fileResult;
        }

 这个action一定要是get请求的     这样才可以直接通过windows.open()请求

前端只需要 window.open("这个action的地址")  就可以直接显示或者下载这个pdf文档

***********************

在程序中生成PDF

　　添加iTextSharp.LGPLv2.Core包

            string filePath = @"D:pdf";
            //实例化在当前目录 创建 移动的实例方法
            DirectoryInfo dirTime = new DirectoryInfo(filePath);

            //如果目录不存在  则创建
            if (!dirTime.Exists)
            {
                dirTime.Create();
            }
            //获取当前目录中文件的数量
            string name = dirTime.GetFiles().Length + 1 + ".pdf";
            filePath = filePath + name;
            //这个就是流对象  对于这种操作IO的  最后都需要清空流对象
            var stream = new FileStream(filePath, FileMode.Create);
            Document document = new Document(PageSize.A4, 5f, 5f, 30f, 0f);
            PdfWriter writer = PdfWriter.GetInstance(document, stream);

try
            {
                document.Open();

                PdfPTable table = new PdfPTable(5);
                table.TotalWidth = 550;
                table.LockedWidth = true;
                table.SetWidths(new int[] { 65, 55, 60, 45, 170 });
                PdfPCell cell;
                BaseFont bfChinese = BaseFont.CreateFont(@"C:WindowsFontssimsun.ttc,1", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
                iTextSharp.text.Font fontChinese_11 = new iTextSharp.text.Font(bfChinese, 15, iTextSharp.text.Font.BOLD, new iTextSharp.text.BaseColor(0, 0, 0));
                iTextSharp.text.Font fontChinese_10 = new iTextSharp.text.Font(bfChinese, 10, iTextSharp.text.Font.NORMAL, new iTextSharp.text.BaseColor(0, 0, 0));
                iTextSharp.text.Font fontChinese_bold = new iTextSharp.text.Font(bfChinese, 8, iTextSharp.text.Font.BOLD, new iTextSharp.text.BaseColor(0, 0, 0));
                iTextSharp.text.Font fontChinese_8 = new iTextSharp.text.Font(bfChinese, 8, iTextSharp.text.Font.NORMAL, new iTextSharp.text.BaseColor(0, 0, 0));
                iTextSharp.text.Font fontChinese = new iTextSharp.text.Font(bfChinese, 12, iTextSharp.text.Font.NORMAL, new iTextSharp.text.BaseColor(0, 0, 0));
                //黑体
                BaseFont bf_ht = BaseFont.CreateFont(@"C:WindowsFontssimsun.ttc,1", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
                iTextSharp.text.Font ht_7 = new iTextSharp.text.Font(bf_ht, 7, iTextSharp.text.Font.NORMAL, new iTextSharp.text.BaseColor(0, 0, 0));

                //公司名称
                cell = new PdfPCell(new Phrase("XXXXXXXX设备有限公司", fontChinese_11));
                cell.Colspan = 5;
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Border = Rectangle.NO_BORDER;
                table.AddCell(cell);
                //document.Add(table);

                //订单类型
                cell = new PdfPCell(new Phrase("发货单", fontChinese_11));
                cell.Colspan = 5;
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Border = Rectangle.NO_BORDER;
                table.AddCell(cell);
                //document.Add(table);

                //单据信息
                var salesorder = GetSalesOrder();

                string str = " 客户：" + salesorder.CustomerName + "  电话：" + salesorder.Phone +"  时间："+salesorder.OrderDate;
                cell = new PdfPCell(new Phrase(str, fontChinese));
                cell.Colspan = 6;
                cell.HorizontalAlignment = Element.ALIGN_LEFT;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Border = Rectangle.NO_BORDER;
                cell.Padding = 5;
                cell.PaddingLeft = 0;
                table.AddCell(cell);
                document.Add(table);
                //str = "出货：" + todate + " 开单：" + model.Osaleh.osaleh_mkdateString + " ECMS单号：" + model.Osaleh.osaleh_osalehID + "";
                //cell = new PdfPCell(new Phrase(str, fontChinese));
                //cell.Colspan = 2;
                //cell.HorizontalAlignment = Element.ALIGN_RIGHT;
                //cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                //cell.Border = Rectangle.NO_BORDER;
                //cell.Padding = 5;
                //table.AddCell(cell);


                table = new PdfPTable(3);
                table.TotalWidth = 550;
                table.LockedWidth = true;
                table.SetWidths(new int[] { 250, 150, 150 });

                cell = new PdfPCell(new Phrase("送货地址：" + salesorder.Address, fontChinese));
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 5;
                table.AddCell(cell);

                cell = new PdfPCell(new Phrase("订单号：" + salesorder.Name, fontChinese));
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 5;
                table.AddCell(cell);

                cell = new PdfPCell(new Phrase("付款方式：" + salesorder.PayMethonText, fontChinese));
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 5;
                table.AddCell(cell);

                document.Add(table);



                table = new PdfPTable(6);
                table.TotalWidth = 550;
                table.LockedWidth = true;
                table.SetWidths(new int[] { 65, 55,100, 60, 45, 70 });

                cell = new PdfPCell(new Phrase("序号", fontChinese));
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 5;
                table.AddCell(cell);

                cell = new PdfPCell(new Phrase("物料号", fontChinese));
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 5;
                table.AddCell(cell);

                cell = new PdfPCell(new Phrase("物料名称", fontChinese));
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 5;
                table.AddCell(cell);

                cell = new PdfPCell(new Phrase("单位", fontChinese));
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 5;
                table.AddCell(cell);

                cell = new PdfPCell(new Phrase("数量", fontChinese));
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 5;
                table.AddCell(cell);

                cell = new PdfPCell(new Phrase("订单号", fontChinese));
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 5;
                table.AddCell(cell);
                document.Add(table);

                List<SalesOrderLine> sendLineList = GetOrderLineList();

                foreach (var item in sendLineList)
                {
                    table = new PdfPTable(6);
                    table.TotalWidth = 550;
                    table.LockedWidth = true;
                    table.SetWidths(new int[] { 65, 55,100, 60, 45, 70 });

                    cell = new PdfPCell(new Phrase(item.LineNumber.ToString(), fontChinese));
                    cell.HorizontalAlignment = Element.ALIGN_CENTER;
                    cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                    cell.Padding = 5;
                    table.AddCell(cell);

                    cell = new PdfPCell(new Phrase(item.ProductNumber, fontChinese));
                    cell.HorizontalAlignment = Element.ALIGN_CENTER;
                    cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                    cell.Padding = 5;
                    table.AddCell(cell);

                    cell = new PdfPCell(new Phrase(item.ProductName, fontChinese));
                    cell.HorizontalAlignment = Element.ALIGN_CENTER;
                    cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                    cell.Padding = 5;
                    table.AddCell(cell);

                    cell = new PdfPCell(new Phrase(item.ProductUnit, fontChinese));
                    cell.HorizontalAlignment = Element.ALIGN_CENTER;
                    cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                    cell.Padding = 5;
                    table.AddCell(cell);

                    cell = new PdfPCell(new Phrase(item.Quantity.ToString(), fontChinese));
                    cell.HorizontalAlignment = Element.ALIGN_CENTER;
                    cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                    cell.Padding = 5;
                    table.AddCell(cell);

                    cell = new PdfPCell(new Phrase(item.SalesOrderName, fontChinese));
                    cell.HorizontalAlignment = Element.ALIGN_CENTER;
                    cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                    cell.Padding = 5;
                    table.AddCell(cell);
                    document.Add(table);
                }



                string accumamtToUpper = salesorder.Money.ToString();
                Phrase phrase = new Phrase();
                phrase.Add(new Chunk("  实收金额：", fontChinese));
                phrase.Add(new Chunk(accumamtToUpper, fontChinese));
                cell = new PdfPCell(phrase);
                cell.Colspan = 6;
                cell.HorizontalAlignment = Element.ALIGN_LEFT;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.Padding = 8;
                table.AddCell(cell);
                document.Add(table);
                //iTextSharp.text.Rectangle pageSize = document.PageSize;
                //document.SetPageSize(pageSize);
                //document.NewPage();
                document.Close();
                stream.Dispose();

                return new  JsonResult("1123") { };
            }
            catch (Exception)
            {

                throw;
            }
            finally
            {
                document.Close();
                stream.Dispose();
            }

        private List<SalesOrderLine> GetOrderLineList()
        {
            List<SalesOrderLine> sendLineList = new List<SalesOrderLine>();
            sendLineList.Add(new SalesOrderLine() { LineNumber=1,ProductNumber ="P147",ProductUnit = "PCS",Quantity =5,SalesOrderName = "S123",ProductName = "净水器1"});
            sendLineList.Add(new SalesOrderLine() { LineNumber = 2, ProductNumber = "P148", ProductUnit = "PCS", Quantity = 20, SalesOrderName = "S123", ProductName = "饮水机" });
            sendLineList.Add(new SalesOrderLine() { LineNumber = 3, ProductNumber = "P178", ProductUnit = "PCS", Quantity = 5, SalesOrderName = "S123", ProductName = "笔记本" });
            sendLineList.Add(new SalesOrderLine() { LineNumber = 4, ProductNumber = "P897", ProductUnit = "PCS", Quantity = 8, SalesOrderName = "S123", ProductName = "化妆品" });
            sendLineList.Add(new SalesOrderLine() { LineNumber = 5, ProductNumber = "P698", ProductUnit = "PCS", Quantity = 1, SalesOrderName = "S123", ProductName = "净水器1" });
            return sendLineList;

        }

        private SalesOrder GetSalesOrder()
        {
            SalesOrder salesOrder = new SalesOrder();
            salesOrder  = (new SalesOrder() { OrderDate = DateTime.Now, Name = "S123456789", Money = 1999, CustomerName = "蒋承标",Phone = "15068271465",PayMethonText = "支付宝",Address="浙江省温州市白鹭屿" });
            return salesOrder;

        }

***************用第二种方式在程序中动态生成PDF后   如果出现下面这种问题 IO流没有关闭  看看上面的stream流对象有没有调用Dispose()

  

具体案例可以在github上找

https://www.jianshu.com/p/d518d0988621