以下经验内容介绍如何在PDF文档中添加条形码、二维码。
工具/原料
Free Spire.Office for Java （免费版）
工具下载及jar导入：
1、jar导入，可通过创建Maven程序项目，并在pom.xml中配置Maven仓库路径，并指定Free Spire.Office for Java的Maven依赖，点击“Import Changes”即可导入JAR包。（如果使用的Eclipse， 点击保存按钮导入），配置如下：<repositories> <repository> <id>com.e-iceblue</id> <url>http://repo.e-iceblue.cn/repository/maven-public/</url> </repository></repositories><dependencies> <dependency> <groupId>e-iceblue</groupId> <artifactId>spire.office.free</artifactId> <version>3.1.1</version></dependency></dependencies>另外，也可通过在E-iceblue官网下载jar包，手动导入Spire.Office.jar到Java程序。
Java代码
1、import com.spire.barcode.*; import com.spire.pdf.*; import com.spire.pdf.barcode.*; import com.spire.pdf.graphics.*; import java.awt.*; import java.awt.geom.Point2D; import java.awt.image.BufferedImage; public class AddBarcodeInPDF { public static void main(String[] args) { //创建PdfDocument对象 PdfDocument pdf = new PdfDocument(); //添加一页 PdfPageBase page = pdf.getPages().add(); //初始化y变量 double y = 15; //创建字体 PdfFont font= new PdfFont(PdfFontFamily.Helvetica, 12,PdfFontStyle.Bold); // 绘制文本“Codebar:”到PDF,并绘制Codebar条码到PDF PdfTextWidget text = new PdfTextWidget(); text.setFont(font); text.setText("Codebar:"); PdfLayoutResult result = text.draw(page, 0, y); y =(float)(result.getBounds().getY()+ result.getBounds().getHeight() + 2); PdfCodabarBarcode codebar= new PdfCodabarBarcode("00:12-3456/7890");//创建条码 codebar.setBarcodeToTextGapHeight(1f); codebar.setBarHeight(25f); codebar.setEnableCheckDigit(true); codebar.setShowCheckDigit(true); codebar.setTextDisplayLocation(TextLocation.Bottom); PdfRGBColor blue = new PdfRGBColor(Color.blue); codebar.setTextColor(blue); Point2D.Float point = new Point2D.Float(); point.setLocation(0,y); codebar.draw(page,point);//绘制条码到PDF页面 y = codebar.getBounds().getY()+ codebar.getBounds().getHeight() + 5; //绘制文本“Code128-A:”到PDF，并绘制Code128A条码到PDF text.setText("Code128-A:"); result = text.draw(page, 0, y); page = result.getPage(); y =result.getBounds().getY()+ result.getBounds().getHeight() + 2; PdfCode128ABarcode code128 = new PdfCode128ABarcode("HELLO 00-123"); code128.setBarcodeToTextGapHeight(1f); code128.setBarHeight(25f); code128.setTextDisplayLocation(TextLocation.Bottom); code128.setTextColor(blue); point.setLocation(point.x,y); code128.draw(page, point); y =code128.getBounds().getY()+ code128.getBounds().getHeight() + 5; //绘制文本“Code39”到PDF，绘制Code39条形码到PDF text.setText("Code39:"); result = text.draw(page, 0, y); page = result.getPage(); y =result.getBounds().getY()+ result.getBounds().getHeight() + 2; PdfCode39Barcode code39 = new PdfCode39Barcode("16-273849");//绘制条码 code39.setBarcodeToTextGapHeight(1f); code39.setBarHeight(25f); code39.setTextDisplayLocation(TextLocation.Bottom); code39.setTextColor(blue); point.setLocation(point.x,y); code39.draw(page, point);//绘制条码到PDF页面 //生成二维码图片，绘制到PDF页面 text.setText("QRCode:");//绘制文本“QR Code:”到PDF result = text.draw(page, 200, 0); page = result.getPage(); BarcodeSettings settings = new BarcodeSettings();//创建二维码图形 settings.setType(BarCodeType.QR_Code); settings.setData("123456789"); settings.setData2D("123456789"); settings.setX(1f); settings.setLeftMargin(0); settings.setShowTextOnBottom(true); settings.setQRCodeECL(QRCodeECL.Q); settings.setQRCodeDataMode(QRCodeDataMode.Numeric); BarCodeGenerator generator = new BarCodeGenerator(settings); Image image = generator.generateImage(); PdfImage pdfImage = PdfImage.fromImage((BufferedImage)image);//绘制二维码图片到PDF y = result.getBounds().getY()+ result.getBounds().getHeight() + 2; page.getCanvas().drawImage(pdfImage,200,y); //保存PDF文档 pdf.saveToFile("添加条码、二维码.pdf"); pdf.dispose(); } }
