Java generates QR code with logo

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import .Graphics2D;

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import .RoundRectangle2D;

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import org.;

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/**

* QR code tool category

* @dateJuly 10, 2018

* @version 1.0

*/

public class QRCodeUtils {

private static Logger logger = ();

// QR code size

private static final int QRCODE_SIZE = 300;

// The size of the logo in the middle of the QR code

private static final int WIDTH = 60;

private static final int HEIGHT = 60;

public static void encode(String content, String logoPath, String imgPath) throws Exception {

encode(content, logoPath, imgPath, QRCODE_SIZE, 1);

}

public static void encode(String content, String logoPath, String imgPath, int size, int margin) throws Exception {

BufferedImage image = createImage(content, logoPath, size, margin);

(image, "png", new File(imgPath));

}

public static void encode(String content, String logoPath, OutputStream output) throws Exception {

encode(content, logoPath, output, QRCODE_SIZE, 1);

}

public static void encode(String content, String logoPath, OutputStream output, int size, int margin) throws Exception {

BufferedImage image = createImage(content, logoPath, size, margin);

(image, "png", output);

}

private static BufferedImage createImage(String content, String imgPath, int size, int margin) throws Exception {

Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();

(EncodeHintType.ERROR_CORRECTION, );

(EncodeHintType.CHARACTER_SET, "UTF-8");

(, margin);

BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, size, size, hints);

int[] rec = ();

int resWidth = rec[2] + 1;

int resHeight = rec[3] + 1;

BitMatrix resMatrix = new BitMatrix(resWidth, resHeight);

();

for (int i = 0; i < resWidth; i++) {

for (int j = 0; j < resHeight; j++) {

if ((i + rec[0], j + rec[1])) {

(i, j);

}

}

}

int width = ();

int height = ();

BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

for (int x = 0; x < width; x++) {

for (int y = 0; y < height; y++) {

(x, y, (x, y) ? 0xFF000000 : 0xFFFFFFFF);

}

}

if (imgPath == null || "".equals(imgPath)) {

return image;

}

// Insert picture

insertImage(image, imgPath, size);

return image;

}

private static void insertImage(BufferedImage source, String imgPath, int size) throws Exception {

File file = new File(imgPath);

if (!()) {

(""+imgPath+"The file does not exist!");

return;

}

Image src = (new File(imgPath));

int width = (null);

int height = (null);

// Compress LOGO

if (width > WIDTH) {

width = WIDTH;

}

if (height > HEIGHT) {

height = HEIGHT;

}

Image image = (width, height, Image.SCALE_SMOOTH);

BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

Graphics g = ();

(image, 0, 0, null); // Draw the reduced figure

();

src = image;

// Insert LOGO

Graphics2D graph = ();

int x = (size - width) / 2;

int y = (size - height) / 2;

(src, x, y, width, height, null);

Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);

(new BasicStroke(3f));

(shape);

();

}

public static String decode(File file) throws Exception {

BufferedImage image;

image = (file);

if (image == null) {

return null;

}

BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(image);

BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

Result result;

Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();

(DecodeHintType.CHARACTER_SET, "UTF-8");

result = new MultiFormatReader().decode(bitmap, hints);

return result != null ? () : null;

}

public static void main(String[] args) throws Exception {

// Generate a QR code with a logo, you don’t need to bring a logo and don’t pass parameters.

("Nuoxing God of War-A001", "e:/", "e:/");

// parse the content stored in the QR code and print it

(decode(new File("e:/")));

}

}