条形码组件Spire.Barcode 教程：在Java中生成QR码

本教程提供了用于在Java中生成QR码的代码示例。

package GenerateBarcode;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import javax.imageio.ImageIO;import com.spire.barcode.BarCodeGenerator;import com.spire.barcode.BarCodeType;import com.spire.barcode.BarcodeSettings;import com.spire.barcode.QRCodeECL;import com.sun.javafx.print.Units;public class QR_Code {public static void main(String[] args) throws IOException {        //create an instance of BarcodeSetteings        BarcodeSettings settings = new BarcodeSettings();        //set barcode type        settings.setType(BarCodeType.QR_CODE);        //set barcode data        settings.setData("ABC 123456789");        //set dispaly text        settings.setData2D("ABC 123456789");        //show text on bottom        settings.setShowTextOnBottom(true);        //set the border invisible        settings.hasBorder(false);        //set width of the barcode module        settings.setX(2);        //set the error correction level        settings.setQRCodeECL(QRCodeECL.M);         //create BarCodeGenerator object based on settings        BarCodeGenerator barCodeGenerator = new BarCodeGenerator(settings);        //generate image data and store in BufferedImage instance        BufferedImage bufferedImage = barCodeGenerator.generateImage();        //save to image        ImageIO.write(bufferedImage,"png",new File("QR_CODE.png"));        System.out.println("Complete!");}}

输出：

Spire.Barcode for JAVA