本文主要是介绍使用itextpdf5.x将网页转为PDF,并添页眉页脚页码，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
一、用到的Maven依赖
<dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.5.13.3</version></dependency><!-- 中文字体支持 --><dependency><groupId>com.itextpdf</groupId><artifactId>itext-asian</artifactId><version>5.2.0</version></dependency><dependency><groupId>com.itextpdf.tool</groupId><artifactId>xmlworker</artifactId><version>5.5.13</version></dependency>二、直接上代码
import com.itextpdf.text.*;
import com.itextpdf.text.pdf.*;
import com.itextpdf.tool.xml.XMLWorkerHelper;import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;public class HtmlToPdfWithHeadersFooters {public static void main(String[] args) {// String htmlFile = "D:\\opt\\upFiles\\temp\\模板测试3页面_17243805153171.html";String htmlFile = "D:\\opt\\upFiles\\temp\\模板测试3页面_17243757480651.html";// String htmlFile = "D:\\opt\\upFiles\\temp\\模板测试3页面_17242121319999.html";String pdfFile = "D:\\htmltopdftest\\pdf0001607.pdf";html2pdf(htmlFile, pdfFile);}public static void html2pdf(String htmlFile, String pdfFile) {try (FileOutputStream fos = new FileOutputStream(pdfFile)) {Document document = new Document(PageSize.A4, 36, 36, 36, 36); // 设置页边距PdfWriter writer = PdfWriter.getInstance(document, fos);document.open();// 注册页眉和页脚事件处理器writer.setPageEvent(new HeadersFootersHandler());InputStream inputStream = new FileInputStream(htmlFile);// 将 HTML 转换成 PDFXMLWorkerHelper.getInstance().parseXHtml(writer, document, inputStream);document.close();} catch (IOException | DocumentException e) {e.printStackTrace();}}static class HeadersFootersHandler extends PdfPageEventHelper {BaseFont baseFont;Font font ;{try {baseFont = BaseFont.createFont("STSong-Light","UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);font = new Font(baseFont, 8, Font.NORMAL);} catch (Exception e) {e.printStackTrace();}}@Overridepublic void onEndPage(PdfWriter writer, Document document) {PdfPTable table = new PdfPTable(1);table.setTotalWidth(document.right() - document.left());float pageWidth = document.right() - document.left();pageWidth = (pageWidth - 36)/2;table.setWidthPercentage(99);table.getDefaultCell().setBorder(2);table.getDefaultCell().setPadding(3);table.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);// 添加页眉PdfPCell headerCell = new PdfPCell(new Paragraph("页眉：中国 ", font));headerCell.setBorder(0);headerCell.setPaddingBottom(0);table.addCell(headerCell);PdfPCell footerCell = new PdfPCell(new Paragraph("页码 " + writer.getPageNumber(), font));footerCell.setBorder(0);footerCell.setPaddingTop(10);table.addCell(footerCell);// 将页眉页脚添加到文档中float yHeader = document.top() + 20; // 页眉距离顶部的距离table.writeSelectedRows(0, -1, pageWidth, yHeader, writer.getDirectContent());}}
}三、测试用的HTML文件
注意，HTML文件的内容必须严格遵守XHTML规范，否则会抛异常。
不知道怎么上传附件，我直接粘贴HTML的代码
<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></meta><style type="text/css">body { font-family:arial,helvetica,sans-serif; font-size:16px }p {margin:3px; line-height:24px;} .mce-item-table[border="0"],.mce-item-table[border="0"] td{border: 0px dashed #bbb;}</style></head><body><html><head></head><body><p><span id="billNum" class="mceNonEditable blmField" contenteditable="false">xxx</span></p><p><span id="billBuildTime" class="mceNonEditable blmField" contenteditable="false">xxx</span></p><p><span style="font-size: 48px; color: rgb(45, 194, 107);" data-mce-style="font-size: 48px; color: #2dc26b;">today is a good day!</span></p><p><span style="font-size: 48px; color: rgb(45, 194, 107);" data-mce-style="font-size: 48px; color: #2dc26b;"><img src="http://192.168.105.151:7800/bsblm/sys/common/static/jeditor/icon_1724213898321.jpg" alt="" data-mce-src="http://192.168.105.151:7800/bsblm/sys/common/static/jeditor/icon_1724213898321.jpg" width="235" height="235"></img><br data-mce-bogus="1"></br></span></p><p class="blm_template_break" style="page-break-before: always; margin: 0; padding: 0; text-align: center; color: #666;" contenteditable="false" data-mce-style="page-break-before: always; margin: 0; padding: 0; text-align: center; color: #666;"></p><p> <span id="billStageType" class="mceNonEditable blmField" contenteditable="false">xxx</span></p><p><span id="billSendTime" class="mceNonEditable blmField" contenteditable="false">xxx</span></p><p><span style="font-size: 36px; font-family: SimSun, serif;" data-mce-style="font-size: 36px; font-family: SimSun, serif;"><strong><span style="color: rgb(230, 126, 35);" data-mce-style="color: #e67e23;">Happy BirthDay!</span></strong></span></p><table style="border-collapse: collapse; width: 100%;" border="1"><colgroup><col style="width: 20.0255%;"></col><col style="width: 20.0255%;"></col><col style="width: 20.0255%;"></col><col style="width: 20.0255%;"></col><col style="width: 20.0255%;"></col></colgroup><tbody><tr><td><span style="color: rgb(224, 62, 45);" data-mce-style="color: #e03e2d;">great!</span></td><td><br></br></td><td><br></br></td><td><br></br></td><td><br></br></td></tr><tr><td><br></br></td><td><span style="font-size: 24px; color: rgb(230, 126, 35);" data-mce-style="font-size: 24px; color: #e67e23;"><strong>good!</strong></span></td><td><br></br></td><td><br></br></td><td><br></br></td></tr><tr><td><br></br></td><td><br></br></td><td><br></br></td><td><span style="font-size: 36px; color: rgb(224, 62, 45);" data-mce-style="font-size: 36px; color: #e03e2d;"><strong>Yes!</strong></span></td><td><br></br></td></tr></tbody></table><p class="blm_template_break" style="page-break-before: always; margin: 0; padding: 0; text-align: center; color: #666;" contenteditable="false" data-mce-style="page-break-before: always; margin: 0; padding: 0; text-align: center; color: #666;"></p><p> <span id="payForReason" class="mceNonEditable blmField" contenteditable="false">xxx</span></p><p><span id="payForReason" class="mceNonEditable blmField" contenteditable="false">xxx</span></p><p><span style="font-size: 36px; color: rgb(224, 62, 45);" data-mce-style="font-size: 36px; color: #e03e2d;">Thank you!</span></p><p><br data-mce-bogus="1"></br></p><p><br data-mce-bogus="1"></br></p><p><br data-mce-bogus="1"></br></p></body>
</html></body></html>四、网页转PDF的效果
结果为三张PDF，不知道怎么上传附件，我直接上截图看看效果。
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