基于Layui +net. mvcPDF导出

html

<button class="layui-btn layui-btn-lg layui-btn-radius layui-btn-normal" onclick="PDF导出()">PDF导出</button>

js

function PDF导出() {
    $.post("/PDFHelper/PDF导出", { }, function (pdfName) {
        var fname = "/upload/" + pdfName;
        window.open(fname);
    });
}

PDFHelperController

using iTextSharp.text;
using iTextSharp.text.pdf;
using SFMVC.Model.DAL;
using SFMVC.Model.Model;
using System;
using System.IO;
using System.Web.Mvc;

namespace SFMVC3._0.Controllers
{
    public class PDFHelperController : Controller
    {
        // GET: PDF
        public ActionResult Index()
        {
            return View();
        }
        #region 
        public string PDF导出(string userId)
        {
            userId = "admin";
            string guid = Guid.NewGuid().ToString();//PDF随机名称
            SUSERS dal = new SUSERS();
            SUser user = dal.getUserByUid(userId);//通过参数查找数据

            //开始PDF生产；
            string fileName = guid + ".pdf";
            string basePath = AppDomain.CurrentDomain.BaseDirectory;
            try
            {
                BaseFont bfSon = BaseFont.CreateFont(basePath + "/fonts/simsunb.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);//字体文件
                BaseFont bfHei = BaseFont.CreateFont(basePath + "/fonts/STXIHEI.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);

                Font font = new Font(bfHei, 14, 1);
                Font fontInfo = new Font(bfHei, 10, 0);
                Font fontTable = new Font(bfHei, 10, 1);
                Font fontFoot = new Font(bfHei, 10);
                Font font注 = new Font(bfHei, 9);
                Font fontTitle = new Font(bfHei, 28, 1);//定义文字大小和格式
                Document document = new Document(new Rectangle(595F, 842F));//创建一个Document对象并设置纸张
                System.IO.File.Delete(basePath + "/upload/tem_" + fileName);

                PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(basePath + "/upload/tem_" + fileName, FileMode.Create));//创建PDF实例
                document.Open();//打开文档；

                PdfPTable tablePage = new PdfPTable(new float[] { 100 });//设置列宽为100的一列
                tablePage.WidthPercentage = 100;//设置表的宽度

                PdfPCell 编号 = new PdfPCell(new Paragraph("【编号：             】", fontTable));
                编号.HorizontalAlignment = Element.ALIGN_RIGHT;
                编号.VerticalAlignment = Element.ALIGN_RIGHT;
                编号.PaddingRight = 40;//边距
                编号.PaddingBottom = 20;
                编号.PaddingTop = 80;
                编号.BorderWidth = 0;//边线
                tablePage.AddCell(编号);//将编号放入到tablePage

                PdfPCell cellTitle01 = new PdfPCell(new Paragraph("PDF导出", fontTitle));
                cellTitle01.HorizontalAlignment = Element.ALIGN_CENTER;
                cellTitle01.VerticalAlignment = Element.ALIGN_MIDDLE;
                cellTitle01.Padding = 5;
                cellTitle01.PaddingBottom = 250;
                cellTitle01.BorderWidth = 0;
                tablePage.AddCell(cellTitle01);//将cellTitle01放入到tablePage

                document.Add(tablePage);//将tablePage添加到document
                document.NewPage();//新的一页

                PdfPTable table00 = new PdfPTable(new float[] { 100 });
                table00.WidthPercentage = 100;

                PdfPCell cellTitle = new PdfPCell(new Paragraph("第一页", font));
                cellTitle.HorizontalAlignment = Element.ALIGN_CENTER;
                cellTitle.VerticalAlignment = Element.ALIGN_MIDDLE;
                cellTitle.Padding = 5;
                cellTitle.BorderWidth = 0;
                cellTitle.PaddingBottom = 20;
                table00.AddCell(cellTitle);


                /*画表头*/
                PdfPTable table1 = new PdfPTable(new float[] { 15, 20, 15, 30, 20 });
                table1.WidthPercentage = 100;

                AddPdfCell(table1, fontTable, "姓名", Element.ALIGN_CENTER, 5, 1, 40, 1, 1);
                AddPdfCell(table1, fontInfo, user.Name, 0, 5, 1, 50, 1, 1);
                AddPdfCell(table1, fontTable, "时间", Element.ALIGN_CENTER, 5, 1, 40, 1, 1);
                AddPdfCell(table1, fontInfo, user.Created.ToString("yyyy-MM-dd") == "1900-01-01" ? "" : user.Created.ToString("yyyy年MM月dd日"), 0, 5, 1, 40, 1, 1);

                //照片格
                try
                {
                    Image img = Image.GetInstance(basePath + "/upload/" + user.Photo);

                    img.ScaleAbsolute(100, 150);
                    PdfPCell cellimg = new PdfPCell(img);
                    cellimg.Rowspan = 3;
                    table1.AddCell(cellimg);
                }
                catch (Exception e)
                {
                    PdfPCell cellimg = new PdfPCell(new Paragraph("无照片", fontInfo));
                    cellimg.HorizontalAlignment = Element.ALIGN_CENTER;
                    cellimg.VerticalAlignment = Element.ALIGN_MIDDLE;
                    cellimg.Padding = 5;
                    cellimg.BorderWidth = 1;
                    cellimg.Rowspan = 3;
                    table1.AddCell(cellimg);
                };

                document.Add(table00);
                document.Add(table1);

                document.Close();
                document.Dispose();
                string text = DateTime.Now.ToString("yyyy年MM月dd日 HH:mm:ss") + user.Name;
                reportHelper.reportPdf(fileName);
                reportHelper.SetWatermark(fileName, text);

            }
            catch (Exception ex) { };
            return fileName;
            #endregion

        }
        public static void AddPdfCell(PdfPTable pdfTable, iTextSharp.text.Font fontb, string text, int Alignment, float PadLeft, int BorderWidth, int height, int Rowspan, int Colspan)
        {
            PdfPCell pdfCell = new PdfPCell(new Paragraph(text, fontb));
            pdfCell.HorizontalAlignment = Alignment;//Element.ALIGN_CENTER
            pdfCell.VerticalAlignment = Element.ALIGN_MIDDLE;
            pdfCell.Padding = 5;
            pdfCell.PaddingLeft = PadLeft;
            pdfCell.BorderWidth = BorderWidth;
            pdfCell.MinimumHeight = height;
            pdfCell.Rowspan = Rowspan;
            pdfCell.Colspan = Colspan;
            pdfTable.AddCell(pdfCell);
        }
    }
}

reportHelper

using iTextSharp.text;
using iTextSharp.text.pdf;
using System;
using System.IO;
using System.Web;

namespace SFMVC3._0.Controllers
{
    public class reportHelper
    {
        #region 输出PDF
        public static string reportPdf(string fileName)
        {
            //string fileName = Guid.NewGuid().ToString() + ".pdf";
            string basePath = AppDomain.CurrentDomain.BaseDirectory;
            try
            {
                BaseFont bfSon = BaseFont.CreateFont(basePath + "/fonts/simsunb.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
                BaseFont bfHei = BaseFont.CreateFont(basePath + "/fonts/STXIHEI.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
                Font font = new Font(bfHei, 18);
                Font fontInfo = new Font(bfHei, 12, 0);
                Font fontTable = new Font(bfHei, 12, 1);
                Font fontFoot = new Font(bfHei, 10);

                int rotation = 0;
                string pdfTemplate = HttpContext.Current.Server.MapPath("/upload/tem_" + fileName);//文档位置；
                FileStream stream = new FileStream(pdfTemplate, FileMode.Open, FileAccess.Read);
                PdfReader reader = new PdfReader(stream);
                int pageCount = reader.NumberOfPages;//获取全部页面；

                Document newDocument = new Document();

                File.Delete(basePath + "/upload/" + fileName);
                PdfWriter pdfWriter = PdfWriter.GetInstance(newDocument, new FileStream(basePath + "/upload/" + fileName, FileMode.CreateNew));//创建PDF实例
                newDocument.Open();
                PdfContentByte pdfContentByte = pdfWriter.DirectContent;
                PdfContentByte cbs = pdfWriter.DirectContent;

                for (int pnum = 1; pnum <= pageCount; pnum++)
                {
                    newDocument.SetPageSize(new Rectangle(595F, 842F));
                    newDocument.NewPage();

                    PdfImportedPage importedPage = pdfWriter.GetImportedPage(reader, pnum);
                    rotation = reader.GetPageRotation(pnum);
                    pdfContentByte.AddTemplate(importedPage, 0, 0);

                    string pageNum = "第" + (pnum) + "页,共计" + pageCount + "页";
                    Phrase footer = new Phrase(pageNum, fontFoot);
                    ColumnText.ShowTextAligned(cbs, Element.ALIGN_CENTER, footer, newDocument.PageSize.Width / 2, newDocument.Bottom - 20, 0);
                }
                //stream.Flush();
                newDocument.Close();

                reader.Close(); stream.Close();
            }
            catch (Exception ex)
            {
                //logHelper.savePdfLog(Session["UID"].ToString(), ex.ToString());
                return "";
            }

            return fileName;
        }
        #endregion 结束输出PDF

        /// <summary>
        /// 添加普通偏转角度文字水印
        /// </summary>
        /// 
        #region 输出PDF
        public static void SetWatermark(string fileName, string text)
        {
            PdfReader pdfReader = null;
            PdfStamper pdfStamper = null;
            string basePath = AppDomain.CurrentDomain.BaseDirectory;
            string pdfTemplate = HttpContext.Current.Server.MapPath("/upload/" + fileName);//文档位置；
            string tempPath = Path.GetDirectoryName(pdfTemplate) + Path.GetFileNameWithoutExtension(pdfTemplate) + "_temp.pdf";

            try
            {
                pdfReader = new PdfReader(pdfTemplate);
                pdfStamper = new PdfStamper(pdfReader, new FileStream(tempPath, FileMode.Create));
                int total = pdfReader.NumberOfPages + 1;
                iTextSharp.text.Rectangle psize = pdfReader.GetPageSize(1);
                float width = psize.Width;
                float height = psize.Height;
                PdfContentByte content;
                BaseFont font = BaseFont.CreateFont(basePath + "/fonts/STXIHEI.TTF", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);

                for (int i = 1; i < total; i++)
                {
                    PdfGState gs = new PdfGState();
                    content = pdfStamper.GetOverContent(i);//在内容上方加水印
                                                           //content = pdfStamper.GetUnderContent(i);//在内容下方加水印
                                                           //透明度
                    gs.FillOpacity = 0.3f;
                    content.SetGState(gs);
                    //content.SetGrayFill(0.3f);
                    //开始写入文本
                    content.BeginText();
                    content.SetColorFill(BaseColor.GRAY);
                    content.SetFontAndSize(font, 20);
                    content.SetTextMatrix(0, 0);
                    content.ShowTextAligned(Element.ALIGN_CENTER, text, width - 150, height - 150, -45);
                    content.EndText();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (pdfStamper != null)
                    pdfStamper.Close();

                if (pdfReader != null)
                    pdfReader.Close();
                System.IO.File.Copy(tempPath, pdfTemplate, true);
                System.IO.File.Delete(tempPath);
            }
        }
        #endregion
    }
}