ITEXT 页眉页脚页码三件套

问题场景

整体思路

效果

CODE

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.MalformedURLException;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.ExceptionConverter;
import com.itextpdf.text.Font;
import com.itextpdf.text.Image;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfTemplate;
import com.itextpdf.text.pdf.PdfWriter;

/**
* @author  youxingyang
* @Date    2017-5-9 下午1:15:46
*/
public class pdfPage {

//页码事件
private static class PageXofYTest extends PdfPageEventHelper{
/** The PdfTemplate that contains the total number of pages. */
public PdfTemplate total;

public BaseFont bfChinese;

/**
* 重写PdfPageEventHelper中的onOpenDocument方法
*/
@Override
public void onOpenDocument(PdfWriter writer, Document document) {
// 得到文档的内容并为该内容新建一个模板
total = writer.getDirectContent().createTemplate(500, 500);
try {

String prefixFont = "";
String os = System.getProperties().getProperty("os.name");
if(os.startsWith("win") || os.startsWith("Win")){
prefixFont = "C:\\Windows\\Fonts" + File.separator;
}else {
prefixFont = "/usr/share/fonts/chinese" + File.separator;
}

// 设置字体对象为Windows系统默认的字体
bfChinese = BaseFont.createFont(prefixFont + "simsun.ttc,0", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}

/**
* 重写PdfPageEventHelper中的onEndPage方法
*/
@Override
public void onEndPage(PdfWriter writer, Document document) {
// 新建获得用户页面文本和图片内容位置的对象
PdfContentByte pdfContentByte = writer.getDirectContent();
// 保存图形状态
pdfContentByte.saveState();
String text = writer.getPageNumber() + "/";
// 获取点字符串的宽度
float textSize = bfChinese.getWidthPoint(text, 9);
pdfContentByte.beginText();
// 设置随后的文本内容写作的字体和字号
pdfContentByte.setFontAndSize(bfChinese, 9);

// 定位'X/'
float x = (document.right() + document.left()) / 2;
float y = 56f;
pdfContentByte.setTextMatrix(x, y);
pdfContentByte.showText(text);
pdfContentByte.endText();

// 将模板加入到内容（content）中- // 定位'Y'
pdfContentByte.addTemplate(total, x + textSize, y);

pdfContentByte.restoreState();
}

/**
* 重写PdfPageEventHelper中的onCloseDocument方法
*/
@Override
public void onCloseDocument(PdfWriter writer, Document document) {
total.beginText();
try {
String prefixFont = "";
String os = System.getProperties().getProperty("os.name");
if(os.startsWith("win") || os.startsWith("Win")){
prefixFont = "C:\\Windows\\Fonts" + File.separator;
}else {
prefixFont = "/usr/share/fonts/chinese" + File.separator;
}

bfChinese = BaseFont.createFont(prefixFont + "simsun.ttc,0",BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
total.setFontAndSize(bfChinese, 9);
} catch (DocumentException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
total.setTextMatrix(0, 0);
// 设置总页数的值到模板上，并应用到每个界面
total.showText(String.valueOf(writer.getPageNumber() - 1));
total.endText();
}
}

//页眉事件
private static class Header extends PdfPageEventHelper {
public static PdfPTable header;

public Header(PdfPTable header) {
Header.header = header;
}

@Override
public void onEndPage(PdfWriter writer, Document document) {
//把页眉表格定位
header.writeSelectedRows(0, -1, 36, 806, writer.getDirectContent());
}

/**
* 设置页眉
* @param writer
* @param req
* @throws MalformedURLException
* @throws IOException
* @throws DocumentException
*/
public void setTableHeader(PdfWriter writer) throws MalformedURLException, IOException, DocumentException {
String imageAddress = "E://TESTPDF/";
PdfPTable table = new PdfPTable(1);
table.setTotalWidth(555);
PdfPCell cell = new PdfPCell();
cell.setBorder(0);
Image image01;
image01 = Image.getInstance(imageAddress + "testhead.png"); //图片自己传
//image01.scaleAbsolute(355f, 10f);
image01.setWidthPercentage(80);
cell.setPaddingLeft(30f);
cell.setPaddingTop(-20f);
cell.addElement(image01);
table.addCell(cell);
Header event = new Header(table);
writer.setPageEvent(event);
}
}

//页脚事件
private static class Footer extends PdfPageEventHelper {
public static PdfPTable footer;

@SuppressWarnings("static-access")
public Footer(PdfPTable footer) {
this.footer = footer;
}

@Override
public void onEndPage(PdfWriter writer, Document document) {
//把页脚表格定位
footer.writeSelectedRows(0, -1, 38, 50, writer.getDirectContent());
}

/**
* 页脚是图片
* @param writer
* @throws MalformedURLException
* @throws IOException
* @throws DocumentException
*/
public void setTableFooter(PdfWriter writer) throws MalformedURLException, IOException, DocumentException {
String imageAddress = "E://TESTPDF/";
PdfPTable table = new PdfPTable(1);
table.setTotalWidth(523);
PdfPCell cell = new PdfPCell();
cell.setBorder(1);
Image image01;
image01 = Image.getInstance(imageAddress + "testfooter.png"); //图片自己传
image01.scaleAbsoluteWidth(523);
image01.scaleAbsoluteHeight(30f);
image01.setWidthPercentage(100);
cell.addElement(image01);
table.addCell(cell);
Footer event = new Footer(table);
writer.setPageEvent(event);
}

/**
* 页脚是文字
* @param writer
* @param songti09
*/
public void setTableFooter(PdfWriter writer, Font songti09) {
PdfPTable table = new PdfPTable(1);
table.setTotalWidth(520f);
PdfPCell cell = new PdfPCell();
cell.setBorder(1);
String string = "地址:  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX         网址:  www.xxxxxxx.com       咨询热线:  400x-xxx-xxx";
Paragraph p = new Paragraph(string, songti09);
cell.setPaddingLeft(10f);
cell.setPaddingTop(-2f);
cell.addElement(p);
table.addCell(cell);
Footer event = new Footer(table);
writer.setPageEvent(event);
}
}

public static void main(String[] args) throws Exception {
Document document = new Document(PageSize.A4, 48, 48, 60, 65);
// add index page.
String path = "test.pdf";
String dir = "E://TEST";
File file = new File(dir);
if (!file.exists()) {
file.mkdir();
}
path = dir + File.separator + path;
FileOutputStream os = new FileOutputStream(path);
PdfWriter writer = PdfWriter.getInstance(document, os);

// 设置页面布局
writer.setViewerPreferences(PdfWriter.PageLayoutOneColumn);
// 为这篇文档设置页面事件(X/Y)
writer.setPageEvent(new PageXofYTest());

String prefixFont = "";
String oss = System.getProperties().getProperty("os.name");
if(oss.startsWith("win") || oss.startsWith("Win")){
prefixFont = "C:\\Windows\\Fonts" + File.separator;
}else {
prefixFont = "/usr/share/fonts/chinese" + File.separator;
}
BaseFont baseFont1 = BaseFont.createFont(prefixFont + "simsun.ttc,0", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
Font songti09 = new Font(baseFont1, 9f); //宋体 小五

document.open();

document.newPage();
PdfPTable pdfPTable = new PdfPTable(1);
// 为报告添加页眉，事件的发生是在生成报告之后，写入到硬盘之前
Header headerTable = new Header(pdfPTable);
headerTable.setTableHeader(writer);
Footer footerTable = new Footer(pdfPTable);
footerTable.setTableFooter(writer, songti09);
document.add(pdfPTable);

for (int i = 0; i < 36; i++) {
document.add(new Paragraph("the first page"));
}

document.newPage();
document.add(new Paragraph("the second page"));

document.close();
os.close();
}

}