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itextpdf 二維碼

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相關類與接口

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BarcodeQRCode

public class BarcodeQRCode extends Barcode2D {ByteMatrix bm;Map<EncodeHintType, Object> hints;String code;******** 構造方法public BarcodeQRCode(String code, Map<EncodeHintType, Object> hints) {public BarcodeQRCode(String content) {public BarcodeQRCode() {******** 其他方法public void setCode(String code) {public void setHints(Map<EncodeHintType, Object> hints) {public void regenerate() {public String getCode() {public Rectangle getBarcodeSize() {public Map<EncodeHintType, Object> getHints() {public Rectangle getBarcodeSize(float moduleSize) {public Rectangle placeBarcode(PdfCanvas canvas, Color foreground) {public Rectangle placeBarcode(PdfCanvas canvas, Color foreground, float moduleSide) {public PdfFormXObject createFormXObject(Color foreground, PdfDocument document) {public PdfFormXObject createFormXObject(Color foreground, float moduleSize, PdfDocument document) {public Image createAwtImage(java.awt.Color foreground, java.awt.Color background) {private byte[] getBitMatrix() {

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示例

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public class Test4 {private static final String dest = "./qrcode/1.pdf";private static final String dest2 = "./qrcode/2.pdf";public static void fun() throws Exception{ //image生成二維碼，可調整二維碼寬度、高度，掃描二維碼會跳轉到百度首頁PdfDocument pdfDocument = new PdfDocument(new PdfWriter(dest));Document document = new Document(pdfDocument);BarcodeQRCode barcodeQRCode = new BarcodeQRCode();barcodeQRCode.setCode("http://www.baidu.com");Image image = new Image(barcodeQRCode.createFormXObject(pdfDocument));image.setWidth(200);image.setHeight(200);image.setFixedPosition(100,600);document.add(image);document.close();}public static void fun2() throws Exception{ //canvas繪制二維碼，掃描二維碼會跳轉到百度首頁PdfDocument pdfDocument = new PdfDocument(new PdfWriter(dest2));BarcodeQRCode barcodeQRCode = new BarcodeQRCode();barcodeQRCode.setCode("http://www.baidu.com");PdfFormXObject object = barcodeQRCode.createFormXObject(ColorConstants.BLACK,pdfDocument);float x = 100;float y = 750;float width = object.getWidth();float height = object.getHeight();PdfCanvas canvas = new PdfCanvas(pdfDocument.addNewPage());canvas.saveState();canvas.setFillColor(ColorConstants.WHITE);canvas.rectangle(x, y, width, height);canvas.fill();canvas.restoreState();canvas.addXObjectAt(object, x, y);pdfDocument.close();}public static void main(String[] args) throws Exception{fun();fun2();} }

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image生成二維碼

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canas繪制二維碼

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總結

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