条形码组件Spire.Barcode 教程：在Java中生成QR码

痛定思痛。 2022-06-05 07:27 382阅读 0赞

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：

![图片1][1]

[点击下载Spire.Barcode for JAVA][Spire.Barcode for JAVA]

[1]: /images/20220605/3a53257278dd40e39b9ce906466d50dd.png
[Spire.Barcode for JAVA]: https://www.evget.com/product/4000/download