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中企动力中山分公司网站,网站制作的流程是什么,建立网站买空间哪家好,简述电子商务网站建设的基本流程iTextSharp5.0后没有了HeaderFooter的类，导致页眉页脚难以实现。经查资料后，发现可以通过PdfPageEventHelper里面的OnEndPage来实现。先看看实现的效果图。 页眉和页脚部分使用PdfPTable来达成，下面是实现代码 using System; using System.Co…

iTextSharp5.0后没有了HeaderFooter的类，导致页眉页脚难以实现。经查资料后，发现可以通过PdfPageEventHelper里面的OnEndPage来实现。先看看实现的效果图。


页眉和页脚部分使用PdfPTable来达成，下面是实现代码

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using iTextSharp.text;
using iTextSharp.text.pdf;namespace ITextSharpTest
{public class PDFBase : PdfPageEventHelper{#region 属性private String _fontFilePathForHeaderFooter = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "SIMHEI.TTF");/// <summary>/// 页眉/页脚所用的字体/// </summary>public String FontFilePathForHeaderFooter{get{return _fontFilePathForHeaderFooter;}set{_fontFilePathForHeaderFooter = value;}}private String _fontFilePathForBody = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "SIMSUN.TTC,1");/// <summary>/// 正文内容所用的字体/// </summary>public String FontFilePathForBody{get { return _fontFilePathForBody; }set { _fontFilePathForBody = value; }}private PdfPTable _header;/// <summary>/// 页眉/// </summary>public PdfPTable Header{get { return _header; }private set { _header = value; }}private PdfPTable _footer;/// <summary>/// 页脚/// </summary>public PdfPTable Footer{get { return _footer; }private set { _footer = value; }}private BaseFont _baseFontForHeaderFooter;/// <summary>/// 页眉页脚所用的字体/// </summary>public BaseFont BaseFontForHeaderFooter{get { return _baseFontForHeaderFooter; }set { _baseFontForHeaderFooter = value; }}private BaseFont _baseFontForBody;/// <summary>/// 正文所用的字体/// </summary>public BaseFont BaseFontForBody{get { return _baseFontForBody; }set { _baseFontForBody = value; }}private Document _document;/// <summary>/// PDF的Document/// </summary>public Document Document{get { return _document; }private set { _document = value; }}#endregionpublic override void OnOpenDocument(PdfWriter writer, Document document){try{BaseFontForHeaderFooter = BaseFont.CreateFont(FontFilePathForHeaderFooter, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);BaseFontForBody = BaseFont.CreateFont(FontFilePathForBody, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);Document = document;}catch (DocumentException de){}catch (System.IO.IOException ioe){}}#region GenerateHeader/// <summary>/// 生成页眉/// </summary>/// <param name="writer"></param>/// <returns></returns>public virtual PdfPTable GenerateHeader(iTextSharp.text.pdf.PdfWriter writer){return null;}#endregion#region GenerateFooter/// <summary>/// 生成页脚/// </summary>/// <param name="writer"></param>/// <returns></returns>public virtual PdfPTable GenerateFooter(iTextSharp.text.pdf.PdfWriter writer){return null;}#endregionpublic override void OnEndPage(iTextSharp.text.pdf.PdfWriter writer, iTextSharp.text.Document document){base.OnEndPage(writer, document);//输出页眉Header = GenerateHeader(writer);Header.TotalWidth = document.PageSize.Width - 20f;///调用PdfTable的WriteSelectedRows方法。该方法以第一个参数作为开始行写入。///第二个参数-1表示没有结束行，并且包含所写的所有行。///第三个参数和第四个参数是开始写入的坐标x和y.Header.WriteSelectedRows(0, -1, 10, document.PageSize.Height - 20, writer.DirectContent);//输出页脚Footer = GenerateFooter(writer);Footer.TotalWidth = document.PageSize.Width - 20f;Footer.WriteSelectedRows(0, -1, 10, document.PageSize.GetBottom(50), writer.DirectContent);}}
}

注：为了便于使用，做了一个PDFBase，后续只需要继承即可。 

using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Text;
using iTextSharp.text;
using iTextSharp.text.pdf;namespace ITextSharpTest
{/// <summary>/// PDF报表/// </summary>public class PDFReport : PDFBase{#region 属性private int _pageRowCount = 12;/// <summary>/// 每页的数据行数/// </summary>public int PageRowCount{get { return _pageRowCount; }set { _pageRowCount = value; }}#endregion/// <summary>/// 模拟数据。实际时可能需要从数据库或网络中获取./// </summary>private DataTable _dtSimulateData = null;private DataTable GenerateSimulateData(){DataTable dtSimulateData = new DataTable();dtSimulateData.Columns.Add("Order", typeof(int));//序号dtSimulateData.Columns.Add("No");//料号dtSimulateData.Columns.Add("Name");//名称dtSimulateData.Columns.Add("Type");//类型dtSimulateData.Columns.Add("GetTime");//领取时间dtSimulateData.Columns.Add("BackTime");//归还时间dtSimulateData.Columns.Add("Remark");//备注DataRow row = null;String[] types = new string[] { "文具", "辅料", "生活用品", "测试用具", "实体机" };DateTime getDate = DateTime.Now;DateTime backDate = DateTime.Now;for (int i = 0; i < 100; i++){row = dtSimulateData.NewRow();row["Order"] = i + 1;row["No"] = (10000 + i + 1).ToString();row["Name"] = Guid.NewGuid().ToString().Substring(0, 5);//造出随机名称row["Type"] = types[(i * 3) % 5];row["GetTime"] = getDate.AddDays(i).ToString("yyyy-MM-dd");row["BackTime"] = ((i + i) % 3 == 0) ? "" : (backDate.AddDays(i + (i * 3) % 8).ToString("yyyy-MM-dd"));//造出没有归还时间的数据row["Remark"] = "XXXXXXX";dtSimulateData.Rows.Add(row);}return dtSimulateData;}#region GenerateHeader/// <summary>/// 生成页眉/// </summary>/// <param name="fontFilePath"></param>/// <param name="pageNumber"></param>/// <returns></returns>public override PdfPTable GenerateHeader(iTextSharp.text.pdf.PdfWriter writer){BaseFont baseFont = BaseFontForHeaderFooter;iTextSharp.text.Font font_logo = new iTextSharp.text.Font(baseFont, 30, iTextSharp.text.Font.BOLD);iTextSharp.text.Font font_header1 = new iTextSharp.text.Font(baseFont, 16, iTextSharp.text.Font.BOLD);iTextSharp.text.Font font_header2 = new iTextSharp.text.Font(baseFont, 12, iTextSharp.text.Font.BOLD);iTextSharp.text.Font font_headerContent = new iTextSharp.text.Font(baseFont, 12, iTextSharp.text.Font.NORMAL);float[] widths = new float[] { 55, 300, 50, 90, 15, 20, 15 };PdfPTable header = new PdfPTable(widths);PdfPCell cell = new PdfPCell();cell.BorderWidthBottom = 2;cell.BorderWidthLeft = 2;cell.BorderWidthTop = 2;cell.BorderWidthRight = 2;cell.FixedHeight = 35;cell.Phrase = new Phrase("LOGO", font_logo);cell.HorizontalAlignment = iTextSharp.text.Element.ALIGN_CENTER;cell.VerticalAlignment = iTextSharp.text.Element.ALIGN_CENTER;cell.PaddingTop = -1;header.AddCell(cell);cell = GenerateOnlyBottomBorderCell(2, iTextSharp.text.Element.ALIGN_LEFT);cell.Phrase = new Paragraph("PDF报表示例", font_header1);header.AddCell(cell);cell = GenerateOnlyBottomBorderCell(2, iTextSharp.text.Element.ALIGN_RIGHT);cell.Phrase = new Paragraph("日期:", font_header2);header.AddCell(cell);cell = GenerateOnlyBottomBorderCell(2, iTextSharp.text.Element.ALIGN_LEFT);cell.Phrase = new Paragraph("2015-07-27", font_headerContent);header.AddCell(cell);cell = GenerateOnlyBottomBorderCell(2, iTextSharp.text.Element.ALIGN_RIGHT);cell.Phrase = new Paragraph("第", font_header2);header.AddCell(cell);cell = GenerateOnlyBottomBorderCell(2, iTextSharp.text.Element.ALIGN_CENTER);cell.Phrase = new Paragraph(writer.PageNumber.ToString(), font_headerContent);header.AddCell(cell);cell = GenerateOnlyBottomBorderCell(2, iTextSharp.text.Element.ALIGN_RIGHT);cell.Phrase = new Paragraph("页", font_header2);header.AddCell(cell);return header;}#region GenerateOnlyBottomBorderCell/// <summary>/// 生成只有底边的cell/// </summary>/// <param name="bottomBorder"></param>/// <param name="horizontalAlignment">水平对齐方式<see cref="iTextSharp.text.Element"/></param>/// <returns></returns>private PdfPCell GenerateOnlyBottomBorderCell(int bottomBorder,int horizontalAlignment){PdfPCell cell = GenerateOnlyBottomBorderCell(bottomBorder, horizontalAlignment, iTextSharp.text.Element.ALIGN_BOTTOM);cell.PaddingBottom = 5;return cell;}/// <summary>/// 生成只有底边的cell/// </summary>/// <param name="bottomBorder"></param>/// <param name="horizontalAlignment">水平对齐方式<see cref="iTextSharp.text.Element"/></param>/// <param name="verticalAlignment">垂直对齐方式<see cref="iTextSharp.text.Element"/</param>/// <returns></returns>private PdfPCell GenerateOnlyBottomBorderCell(int bottomBorder,int horizontalAlignment,int verticalAlignment){PdfPCell cell = GenerateOnlyBottomBorderCell(bottomBorder);cell.HorizontalAlignment = horizontalAlignment;cell.VerticalAlignment = verticalAlignment; ;return cell;}/// <summary>/// 生成只有底边的cell/// </summary>/// <param name="bottomBorder"></param>/// <returns></returns>private PdfPCell GenerateOnlyBottomBorderCell(int bottomBorder){PdfPCell cell = new PdfPCell();cell.BorderWidthBottom = 2;cell.BorderWidthLeft = 0;cell.BorderWidthTop = 0;cell.BorderWidthRight = 0;return cell;}#endregion#endregion#region GenerateFooterpublic override PdfPTable GenerateFooter(iTextSharp.text.pdf.PdfWriter writer){BaseFont baseFont = BaseFontForHeaderFooter;iTextSharp.text.Font font = new iTextSharp.text.Font(baseFont, 10, iTextSharp.text.Font.NORMAL);PdfPTable footer = new PdfPTable(3);AddFooterCell(footer, "审阅:", font);AddFooterCell(footer, "审批:", font);AddFooterCell(footer, "制表:张三", font);return footer;}private void AddFooterCell(PdfPTable foot, String text, iTextSharp.text.Font font){PdfPCell cell = new PdfPCell();cell.BorderWidthTop = 2;cell.BorderWidthRight = 0;cell.BorderWidthBottom = 0;cell.BorderWidthLeft = 0;cell.Phrase = new Phrase(text, font);cell.HorizontalAlignment = iTextSharp.text.Element.ALIGN_CENTER;foot.AddCell(cell);}#endregion#region ExportPDF/// <summary>/// 导出PDF/// </summary>/// <param name="path">导出路径</param>public static void ExportPDF(String path){PDFReport pdfReport = new PDFReport();Document document = new Document(PageSize.A4.Rotate(), -90, -90, 60, 10);//此处设置的偏移量是为了加大页面的可用范围，可以使用默认.PdfWriter pdfWriter = PdfWriter.GetInstance(document, new FileStream(path, FileMode.Create));pdfWriter.PageEvent = pdfReport;//此处一定要赋值，才能触发页眉和页脚的处理document.Open();pdfReport.AddBody(document);document.Close();}/// <summary>/// 导出PDF/// </summary>/// <param name="path">导出路径</param>public static byte[] ExportPDF(){PDFReport pdfReport = new PDFReport();Document document = new Document(PageSize.A4.Rotate(), -90, -90, 60, 10);//此处设置的偏移量是为了加大页面的可用范围，可以使用默认.MemoryStream ms = new MemoryStream();PdfWriter pdfWriter = PdfWriter.GetInstance(document, ms);pdfWriter.PageEvent = pdfReport;//此处一定要赋值，才能触发页眉和页脚的处理document.Open();pdfReport.AddBody(document);document.Close();byte[] buff = ms.ToArray();return buff;}#endregion#region AddBodyprivate void AddBody(Document document){_dtSimulateData = GenerateSimulateData();int count = (_dtSimulateData.Rows.Count + (PageRowCount - 1)) / PageRowCount;for (int i = 0; i < count; i++){AddBodySinglePage(i + 1);document.NewPage();}}private void AddBodySinglePage(int pageNumber){BaseFont baseFont = BaseFontForBody;iTextSharp.text.Font font_columnHeader = new iTextSharp.text.Font(baseFont, 11f, iTextSharp.text.Font.BOLD);iTextSharp.text.Font font_contentNormal = new iTextSharp.text.Font(baseFont, 9.5f, iTextSharp.text.Font.NORMAL);iTextSharp.text.Font font_contentSmall = new iTextSharp.text.Font(baseFont, 8f, iTextSharp.text.Font.NORMAL);int columnCount = 6;//此处是为了当列数很多时，便于循环生成所要的列宽比例float[] widths = new float[columnCount];for (int i = 0; i < columnCount; i++){widths[i] = 1;}//需要加宽的再进行额外处理widths[3] = 2;//时间widths[4] = 3;//备注PdfPTable bodyTable = new PdfPTable(widths);bodyTable.SpacingBefore = 10;//与头部的距离AddBodyHeader(bodyTable, font_columnHeader);AddBodyContent(bodyTable, font_contentNormal, font_contentSmall, pageNumber);Document.Add(bodyTable);}#region AddBodyHeader/// <summary>/// 添加Body的列标题/// </summary>/// <param name="document"></param>/// <param name="font_columnHeader"></param>private void AddBodyHeader(PdfPTable bodyTable, iTextSharp.text.Font font_columnHeader){//采用Rowspan和Colspan来控制单元格的合并与拆分，类似于HTML的Table.AddColumnHeaderCell(bodyTable, "料号", font_columnHeader, 1, 2);AddColumnHeaderCell(bodyTable, "名称", font_columnHeader, 1, 2);AddColumnHeaderCell(bodyTable, "种类", font_columnHeader, 1, 2);AddColumnHeaderCell(bodyTable, "时间", font_columnHeader, 2, 1);//表头下还有两列表头AddColumnHeaderCell(bodyTable, "备注", font_columnHeader, 1, 2, true, true);//时间AddColumnHeaderCell(bodyTable, "领取", font_columnHeader);AddColumnHeaderCell(bodyTable, "归还", font_columnHeader, true, true);}#endregion#region AddBodyContent Function/// <summary>/// 添加报表正文/// </summary>/// <param name="bodyTable"></param>/// <param name="fontNormal">普通字体</param>/// <param name="fontSmall">小字体，当内容显示不下，需要使用小字体来显示时，可以使用.</param>/// <param name="pageNumber">页码。便于从数据库中按页拉取数据时使用.</param>public void AddBodyContent(PdfPTable bodyTable,iTextSharp.text.Font fontNormal,iTextSharp.text.Font fontSmall,int pageNumber){String filterExpression = String.Format("Order>{0} AND Order<={1}",(pageNumber - 1) * PageRowCount,pageNumber * PageRowCount);DataRow[] rows = _dtSimulateData.Select(filterExpression);foreach (var row in rows){AddBodyContentRow(bodyTable, fontNormal, fontSmall, row);}}private void AddBodyContentRow(PdfPTable bodyTable, iTextSharp.text.Font fontNormal, iTextSharp.text.Font fontSmall, DataRow row){AddBodyContentCell(bodyTable, String.Format("{0}", row["No"]), fontNormal);//料号AddBodyContentCell(bodyTable, String.Format("{0}", row["Name"]), fontNormal);//名称AddBodyContentCell(bodyTable, String.Format("{0}", row["Type"]), fontNormal);//种类AddBodyContentCell(bodyTable, String.Format("{0}", row["GetTime"]), fontSmall, 1);//时间-领取String backTime = String.Format("{0}", row["BackTime"]);AddBodyContentCell(bodyTable, backTime, fontSmall);//时间-归还AddBodyContentCell(bodyTable, String.Format("{0}", row["Remark"]), fontSmall, 2, true);//备注  AddBodyContentCell(bodyTable, (String.IsNullOrWhiteSpace(backTime)) ? "消耗品不需归还" : "", fontSmall, 1);//时间-领取(下方说明)}private static void AddBodyContentCell(PdfPTable bodyTable,String text,iTextSharp.text.Font font,int rowspan = 2,bool needRightBorder = false){PdfPCell cell = new PdfPCell();float defaultBorder = 0.5f;cell.BorderWidthLeft = defaultBorder;cell.BorderWidthTop = 0;cell.BorderWidthRight = needRightBorder ? defaultBorder : 0;cell.BorderWidthBottom = defaultBorder;cell.HorizontalAlignment = iTextSharp.text.Element.ALIGN_CENTER;cell.VerticalAlignment = iTextSharp.text.Element.ALIGN_BASELINE;cell.Rowspan = rowspan;cell.PaddingBottom = 4;cell.Phrase = new Phrase(text, font);cell.FixedHeight = 18f;bodyTable.AddCell(cell);}#endregion#region AddColumnHeaderCell Function/// <summary>/// 添加列标题单元格/// </summary>/// <param name="table">表格行的单元格列表</param>/// <param name="header">标题</param>/// <param name="font">字段</param>/// <param name="colspan">列空间</param>/// <param name="rowspan">行空间</param>/// <param name="needLeftBorder">是否需要左边框</param>/// <param name="needRightBorder">是否需要右边框</param>public void AddColumnHeaderCell(PdfPTable table,String header,iTextSharp.text.Font font,int colspan,int rowspan,bool needLeftBorder = true,bool needRightBorder = false){PdfPCell cell = GenerateColumnHeaderCell(header, font, needLeftBorder, needRightBorder);if (colspan > 1){cell.Colspan = colspan;}if (rowspan > 1){cell.Rowspan = rowspan;}table.AddCell(cell);}/// <summary>/// 添加列标题单元格/// </summary>/// <param name="table">表格</param>/// <param name="header">标题</param>/// <param name="font">字段</param>/// <param name="needLeftBorder">是否需要左边框</param>/// <param name="needRightBorder">是否需要右边框</param>public void AddColumnHeaderCell(PdfPTable table,String header,iTextSharp.text.Font font,bool needLeftBorder = true,bool needRightBorder = false){PdfPCell cell = GenerateColumnHeaderCell(header, font, needLeftBorder, needRightBorder);table.AddCell(cell);}#endregion#region GenerateColumnHeaderCell/// <summary>/// 生成列标题单元格/// </summary>/// <param name="header">标题</param>/// <param name="font">字段</param>/// <param name="needLeftBorder">是否需要左边框</param>/// <param name="needRightBorder">是否需要右边框</param>/// <returns></returns>private PdfPCell GenerateColumnHeaderCell(String header,iTextSharp.text.Font font,bool needLeftBorder = true,bool needRightBorder = false){PdfPCell cell = new PdfPCell();float border = 0.5f;cell.BorderWidthBottom = border;if (needLeftBorder){cell.BorderWidthLeft = border;}else{cell.BorderWidthLeft = 0;}cell.BorderWidthTop = border;if (needRightBorder){cell.BorderWidthRight = border;}else{cell.BorderWidthRight = 0;}cell.HorizontalAlignment = iTextSharp.text.Element.ALIGN_CENTER;cell.VerticalAlignment = iTextSharp.text.Element.ALIGN_BASELINE;cell.PaddingBottom = 4;cell.Phrase = new Phrase(header, font);return cell;}#endregion#endregion}
}
注：代码对关键调用作了注释。
Asp.net中的调用 

 public partial class _default : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){if (!IsPostBack){byte[] buff = PDFReport.ExportPDF();Response.ContentType = "application/pdf";Response.BinaryWrite(buff);}}}

WinForm中的调用 

  private void btnExportPdf_Click(object sender, EventArgs e){try{String path = textBoxPath.Text;if (String.IsNullOrWhiteSpace(path)){MessageBox.Show("请输入路径");return;}if (!Directory.Exists(Path.GetDirectoryName(path))){MessageBox.Show("指定的目录不存在");return;}if (".PDF" != Path.GetExtension(path).ToUpper()){path = path + ".pdf";}PDFReport.ExportPDF(path);MessageBox.Show("导出成功");}catch (Exception ex){MessageBox.Show(ex.Message);}}

源码下载http://download.csdn.net/detail/xxdddail/8943371

转载请注明出处http://blog.csdn.net/xxdddail/article/details/47128319


转载于:https://www.cnblogs.com/sparkleDai/p/7604959.html

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