init

duhuizhe

2024-04-17 c389984b5d3e5523e1b22de1fc045dc415261330

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package com.yqzx.common.util;
 
import java.io.ByteArrayOutputStream;
import java.io.IOException;
 
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;
 
/**
 * @Description: 生成二维码
 * @Author: liujun
 * @Date: 2019-09-20 10:36
 **/
public class QRCodeGenerator {
 
    public static byte[] getQRCodeImage(String text, int width, int height) throws WriterException, IOException {
        QRCodeWriter qrCodeWriter = new QRCodeWriter();
        BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);
        ByteArrayOutputStream pngOutputStream = new ByteArrayOutputStream();
        MatrixToImageWriter.writeToStream(bitMatrix, "PNG", pngOutputStream);
        byte[] pngData = pngOutputStream.toByteArray();
        return pngData;
    }
}