package com.hai.common; import com.google.zxing.BarcodeFormat; import com.google.zxing.WriterException; import com.google.zxing.client.j2se.MatrixToImageWriter; import com.google.zxing.common.BitMatrix; import com.google.zxing.qrcode.QRCodeWriter; import java.io.File; import java.io.IOException; import java.nio.file.FileSystems; import java.nio.file.Path; /** * @Auther: 胡锐 * @Description: 生成二维码 * @Date: 2021/3/27 12:07 */ public class QRCodeGenerator { public static void generateQRCodeImage(String text, int width, int height, String filePath) throws WriterException, IOException { QRCodeWriter qrCodeWriter = new QRCodeWriter(); BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height); File file = new File(filePath); if(!file.exists()){ file.mkdirs(); } //Path path = FileSystems.getDefault().getPath(filePath); MatrixToImageWriter.writeToFile(bitMatrix, "PNG", file); } public static void main(String[] args) { try { generateQRCodeImage("This is my first QR Code", 350, 350, "D:\\/ss/qr1.png"); } catch (WriterException e) { System.out.println("Could not generate QR Code, WriterException :: " + e.getMessage()); } catch (IOException e) { System.out.println("Could not generate QR Code, IOException :: " + e.getMessage()); } } }