</dependency>

import java.io.ByteArrayOutputStream;
import java.io.File;
import
java.io.FileNotFoundException;
import java.io.FileOutputStream;
import
java.io.IOException;

import net.glxn.qrgen.QRCode;
import net.glxn.qrgen.image.ImageType;

public class QRCodeService
{
    public static void main(String[]
args)
    {
        String qrcodeContent = "https://www.baidu.com/";
       
ByteArrayOutputStream out =
QRCode.from(qrcodeContent).to(ImageType.PNG).stream();

try
        {
            FileOutputStream fout = new
FileOutputStream(new File("D:/Download/QR_Code.jpg"));
           
fout.write(out.toByteArray());
            fout.flush();
           
fout.close();
        }
        catch (FileNotFoundException e)

{
            e.printStackTrace();
        }
       
catch (IOException e)
        {
            e.printStackTrace();

}
    }
}