Java creates QR code with a logo image in the middle. You can set the logo size.

Public static int createQRCode (String content, String imgPath, String logo ){

Try {

Qrcode qrcodeHandler = new Qrcode ();

QrcodeHandler. setQrcodeErrorCorrect ('M ');

QrcodeHandler. setQrcodeEncodeMode ('B ');

QrcodeHandler. setQrcodeVersion (7 );

// System. out. println (content );

Byte [] contentBytes = content. getBytes ("gb2312 ");

// Construct a BufferedImage object to set the width and height

BufferedImage bufImg = new BufferedImage (140,140, BufferedImage. TYPE_INT_RGB );

Graphics2D gs = bufImg. createGraphics ();

Gs. setBackground (Color. WHITE );

Gs. clearRect (0, 0,140,140 );

// Set the image color> BLACK

Gs. setColor (Color. BLACK );

// Parsing error may occur if the offset is not set.

Int pixoff = 2;

// Output content> QR code

If (contentBytes. length> 0 & contentBytes. length <120 ){

Boolean [] [] codeOut = qrcodeHandler. calQrcode (contentBytes );

For (int I = 0; I <codeOut. length; I ++ ){

For (int j = 0; j <codeOut. length; j ++ ){

If (codeOut [j] [I]) {

Gs. fillRect (j * 3 + pixoff, I * 3 + pixoff, 3, 3 );

}

}

}

} Else {

System. err. println ("QRCode content bytes length =" + contentBytes. length + "not in [0,120].");

Return-1;

}

Image img = ImageIO. read (new File (logo); // instantiate an Image object.

Gs. drawImage (img, 44, 55, 49, 30, null );

Gs. dispose ();

BufImg. flush ();

// Generate a QR code QRCode Image

File imgFile = new File (imgPath );

ImageIO. write (bufImg, "png", imgFile );

} Catch (Exception e ){

E. printStackTrace ();

Return-100;

}

Return 0;

}

// Add the logo of the tire angel

CreateQRCode ("http://www.tireangel.com/android/TireAngelDemo.apk", "http://www.tireangel.com/images/qrCode.jpg", "http://www.tireangel.com/images/logo.jpg ");