iText生成条形码与二维码

/**
 *
 * @author Chen Yi <njchenyi@gmail.com>
 */
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.Image;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.Barcode;
import com.itextpdf.text.pdf.Barcode128;
import com.itextpdf.text.pdf.Barcode39;
import com.itextpdf.text.pdf.BarcodeCodabar;
import com.itextpdf.text.pdf.BarcodeDatamatrix;
import com.itextpdf.text.pdf.BarcodeEAN;
import com.itextpdf.text.pdf.BarcodeEANSUPP;
import com.itextpdf.text.pdf.BarcodeInter25;
import com.itextpdf.text.pdf.BarcodePDF417;
import com.itextpdf.text.pdf.BarcodePostnet;
import com.itextpdf.text.pdf.BarcodeQRCode;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfWriter;
 
public class Barcodes {
 
    /** The resulting PDF. */
    private static final String RESULT = "barcodes.pdf";
 
    /**
     * Generates a PDF file with different types of barcodes.
     * 
     * @param args
     *            no arguments needed here
     * @throws DocumentException
     * @throws IOException
     */
    public static void main(String[] args) throws IOException,
            DocumentException {
        new Barcodes().createPdf(RESULT);
    }
    
 
    /**
     * Creates a PDF document.
     * @param filename the path to the new PDF document
     * @throws    DocumentException 
     * @throws    IOException
     */
    public void createPdf(String filename) throws IOException, DocumentException {
        BaseFont bf = null;
        Font fontChinese = null;
        try {
            //使用iTextAsian.jar中的字体
            bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);
            //使用Windows系统字体(TrueType)
//            BaseFont.createFont("C:/WINDOWS/Fonts/SIMYOU.TTF", BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);
            //使用资源字体(ClassPath)
//            BaseFont.createFont("/SIMYOU.TTF", BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);
            fontChinese = new Font(bf, 12, Font.NORMAL);
        } catch (DocumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
        // step 1
        Document document = new Document(new Rectangle(340, 842));
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(filename));
        // step 3
        document.open();
        // step 4
        PdfContentByte cb = writer.getDirectContent();
 
        
        document.add(new Paragraph("陈轶 njchenyi@gmail.com",fontChinese));
        // EAN 13
        document.add(new Paragraph("Barcode EAN.UCC-13"));
        BarcodeEAN codeEAN = new BarcodeEAN();
        codeEAN.setCode("4512345678906");
        document.add(new Paragraph("default:"));
        document.add(codeEAN.createImageWithBarcode(cb, null, null));
        codeEAN.setGuardBars(false);
        document.add(new Paragraph("without guard bars"));
        document.add(codeEAN.createImageWithBarcode(cb, null, null));
        codeEAN.setBaseline(-1f);
        codeEAN.setGuardBars(true);
        document.add(new Paragraph("text above:"));
        document.add(codeEAN.createImageWithBarcode(cb, null, null));
        codeEAN.setBaseline(codeEAN.getSize());
 
        // UPC A
        document.add(new Paragraph("Barcode UCC-12 (UPC-A)"));
        codeEAN.setCodeType(Barcode.UPCA);
        codeEAN.setCode("785342304749");
        document.add(codeEAN.createImageWithBarcode(cb, null, null));
 
        // EAN 8
        document.add(new Paragraph("Barcode EAN.UCC-8"));
        codeEAN.setCodeType(Barcode.EAN8);
        codeEAN.setBarHeight(codeEAN.getSize() * 1.5f);
        codeEAN.setCode("34569870");
        document.add(codeEAN.createImageWithBarcode(cb, null, null));
 
        // UPC E
        document.add(new Paragraph("Barcode UPC-E"));
        codeEAN.setCodeType(Barcode.UPCE);
        codeEAN.setCode("03456781");
        document.add(codeEAN.createImageWithBarcode(cb, null, null));
        codeEAN.setBarHeight(codeEAN.getSize() * 3f);
 
        // EANSUPP
        document.add(new Paragraph("Bookland"));
        document.add(new Paragraph("ISBN 0-321-30474-8"));
        codeEAN.setCodeType(Barcode.EAN13);
        codeEAN.setCode("9781935182610");
        BarcodeEAN codeSUPP = new BarcodeEAN();
        codeSUPP.setCodeType(Barcode.SUPP5);
        codeSUPP.setCode("55999");
        codeSUPP.setBaseline(-2);
        BarcodeEANSUPP eanSupp = new BarcodeEANSUPP(codeEAN, codeSUPP);
        document.add(eanSupp.createImageWithBarcode(cb, null, BaseColor.BLUE));
 
        // CODE 128
        document.add(new Paragraph("Barcode 128"));
        Barcode128 code128 = new Barcode128();
        code128.setCode("0123456789 hello");
        document.add(code128.createImageWithBarcode(cb, null, null));
        code128.setCode("0123456789\uffffMy Raw Barcode (0 - 9)");
        code128.setCodeType(Barcode.CODE128_RAW);
        document.add(code128.createImageWithBarcode(cb, null, null));
 
        // Data for the barcode :
        String code402 = "24132399420058289";
        String code90 = "3700000050";
        String code421 = "422356";
        StringBuffer data = new StringBuffer(code402);
        data.append(Barcode128.FNC1);
        data.append(code90);
        data.append(Barcode128.FNC1);
        data.append(code421);
        Barcode128 shipBarCode = new Barcode128();
        shipBarCode.setX(0.75f);
        shipBarCode.setN(1.5f);
        shipBarCode.setSize(10f);
        shipBarCode.setTextAlignment(Element.ALIGN_CENTER);
        shipBarCode.setBaseline(10f);
        shipBarCode.setBarHeight(50f);
        shipBarCode.setCode(data.toString());
        document.add(shipBarCode.createImageWithBarcode(cb, BaseColor.BLACK,
                BaseColor.BLUE));
 
        // it is composed of 3 blocks whith AI 01, 3101 and 10
        Barcode128 uccEan128 = new Barcode128();
        uccEan128.setCodeType(Barcode.CODE128_UCC);
        uccEan128.setCode("(01)00000090311314(10)ABC123(15)060916");
        document.add(uccEan128.createImageWithBarcode(cb, BaseColor.BLUE,
                BaseColor.BLACK));
        uccEan128.setCode("0191234567890121310100035510ABC123");
        document.add(uccEan128.createImageWithBarcode(cb, BaseColor.BLUE,
                BaseColor.RED));
        uccEan128.setCode("(01)28880123456788");
        document.add(uccEan128.createImageWithBarcode(cb, BaseColor.BLUE,
                BaseColor.BLACK));
 
        // INTER25
        document.add(new Paragraph("Barcode Interleaved 2 of 5"));
        BarcodeInter25 code25 = new BarcodeInter25();
        code25.setGenerateChecksum(true);
        code25.setCode("41-1200076041-001");
        document.add(code25.createImageWithBarcode(cb, null, null));
        code25.setCode("411200076041001");
        document.add(code25.createImageWithBarcode(cb, null, null));
        code25.setCode("0611012345678");
        code25.setChecksumText(true);
        document.add(code25.createImageWithBarcode(cb, null, null));
 
        // POSTNET
        document.add(new Paragraph("Barcode Postnet"));
        BarcodePostnet codePost = new BarcodePostnet();
        document.add(new Paragraph("ZIP"));
        codePost.setCode("01234");
        document.add(codePost.createImageWithBarcode(cb, null, null));
        document.add(new Paragraph("ZIP+4"));
        codePost.setCode("012345678");
        document.add(codePost.createImageWithBarcode(cb, null, null));
        document.add(new Paragraph("ZIP+4 and dp"));
        codePost.setCode("01234567890");
        document.add(codePost.createImageWithBarcode(cb, null, null));
 
        document.add(new Paragraph("Barcode Planet"));
        BarcodePostnet codePlanet = new BarcodePostnet();
        codePlanet.setCode("01234567890");
        codePlanet.setCodeType(Barcode.PLANET);
        document.add(codePlanet.createImageWithBarcode(cb, null, null));
 
        // CODE 39
        document.add(new Paragraph("Barcode 3 of 9"));
        Barcode39 code39 = new Barcode39();
        code39.setCode("ITEXT IN ACTION");
        document.add(code39.createImageWithBarcode(cb, null, null));
 
        document.add(new Paragraph("Barcode 3 of 9 extended"));
        Barcode39 code39ext = new Barcode39();
        code39ext.setCode("iText in Action");
        code39ext.setStartStopText(false);
        code39ext.setExtended(true);
        document.add(code39ext.createImageWithBarcode(cb, null, null));
 
        // CODABAR
        document.add(new Paragraph("Codabar"));
        BarcodeCodabar codabar = new BarcodeCodabar();
        codabar.setCode("A123A");
        codabar.setStartStopText(true);
        document.add(codabar.createImageWithBarcode(cb, null, null));
 
        // PDF417
        document.add(new Paragraph("Barcode PDF417"));
        BarcodePDF417 pdf417 = new BarcodePDF417();
        String text = "Call me Ishmael. Some years ago--never mind how long "
            + "precisely --having little or no money in my purse, and nothing "
            + "particular to interest me on shore, I thought I would sail about "
            + "a little and see the watery part of the world.";
        pdf417.setText(text);
        Image img = pdf417.getImage();
        img.scalePercent(50, 50 * pdf417.getYHeight());
        document.add(img);
 
        document.add(new Paragraph("Barcode Datamatrix"));
        BarcodeDatamatrix datamatrix = new BarcodeDatamatrix();
        datamatrix.generate(text);
        img = datamatrix.createImage();
        document.add(img);
 
        document.add(new Paragraph("Barcode QRCode"));
        BarcodeQRCode qrcode = new BarcodeQRCode("Moby Dick by Herman Melville", 1, 1, null);
        img = qrcode.getImage();
        document.add(img);
 
        // step 5
        document.close();
    }
}

生成barcode的代码主要都是源于iText官网上提供的样例代码，不过使用中文标签的时候就会出现中文部分为空白的情况。

结合其他在iText中使用中文的情况，首先需要下载itext-asian.jar文件，然后加入到项目类路径。