1. 引入依赖

<dependency><groupId>com.itextpdf</groupId><artifactId>itext7-core</artifactId><version>8.0.1</version>
</dependency>

2. 代码实现

import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.property.TextAlignment;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;public class XmlToPdf {public static void main(String[] args) throws Exception {// 读取XML文件File xmlFile = new File("example.xml");DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();Document doc = dBuilder.parse(xmlFile);doc.getDocumentElement().normalize();// 创建PDF文档PdfWriter writer = new PdfWriter("output.pdf");PdfDocument pdf = new PdfDocument(writer);Document pdfDoc = new Document(pdf, PageSize.A4);// 遍历XML元素并将其添加到PDF文档中processNode(pdfDoc, doc.getDocumentElement());// 关闭文档pdfDoc.close();}private static void processNode(Document pdfDoc, Node node) {if (node.getNodeType() == Node.ELEMENT_NODE) {Element element = (Element) node;Paragraph paragraph = new Paragraph(element.getTextContent()).setTextAlignment(TextAlignment.CENTER);pdfDoc.add(paragraph);}NodeList children = node.getChildNodes();for (int i = 0; i < children.getLength(); i++) {processNode(pdfDoc, children.item(i));}}
}