Java 在PDF中添加条形码的两种方法

import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import com.spire.pdf.barcode.*;
import com.spire.pdf.graphics.*;
import static com.spire.pdf.graphics.PdfFontStyle.Bold;
import java.awt.*;
import java.awt.geom.Point2D;
import java.util.EnumSet;

public class DrawBarcode {
  public static void main(String[] args) {
    //创建PdfDocument对象
    PdfDocument doc = new PdfDocument();

    //添加一页
    PdfPageBase page = doc.getPages().add();

    //初始化y变量
    double y = 15;

    //创建字体
    PdfFont font= new PdfFont(PdfFontFamily.Helvetica, 12, EnumSet.of(Bold));

    // 绘制文本“Codebar:”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);

    //绘制Codebar条码到PDF
    PdfCodabarBarcode codebar= new PdfCodabarBarcode("00:12-3456/7890");
    codebar.setBarcodeToTextGapHeight(1f);
    codebar.setBarHeight(50f);
    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);
    y = codebar.getBounds().getY()+ codebar.getBounds().getHeight() + 5;

    //绘制文本“Code128-A:”到PDF
    text.setText("Code128-A:");
    result = text.draw(page, 0, y);
    page = result.getPage();
    y =result.getBounds().getY()+ result.getBounds().getHeight() + 2;

    //绘制Code128A条码到PDF
    PdfCode128ABarcode code128 = new PdfCode128ABarcode("HELLO 00-123");
    code128.setBarcodeToTextGapHeight(1f);
    code128.setBarHeight(50f);
    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
    text.setText("Code39:");
    result = text.draw(page, 0, y);
    page = result.getPage();
    y =result.getBounds().getY()+ result.getBounds().getHeight() + 2;

    //绘制Code39条形码到PDF
    PdfCode39Barcode code39 = new PdfCode39Barcode("16-273849");
    code39.setBarcodeToTextGapHeight(1f);
    code39.setBarHeight(50f);
    code39.setTextDisplayLocation(TextLocation.Bottom);
    code39.setTextColor(blue);
    point.setLocation(point.x,y);
    code39.draw(page, point);

    //保存PDF文档
    doc.saveToFile("output/DrawBarcode.pdf");
  }
}