/**
* 生成二维码(内嵌LOGO)
*
* @param content 内容
* @param imgPath LOGO地址
* @param destPath 存放目录
* @param needCompress 是否压缩LOGO
* @throws Exception
*/
public static File encode(
String content,
String imgPath,
String destPath,
boolean needCompress,
QRCodeConfig qrCodeConfig)
throws Exception {
BufferedImage image = QRCodeUtil.createImage(content, imgPath, needCompress, qrCodeConfig);
mkdirs(destPath);
String fileName = null;
if (qrCodeConfig != null && qrCodeConfig.getFileName() != null) {
fileName = qrCodeConfig.getFileName() + ".png";
} else {
fileName = new Random().nextInt(99999999) + ".png";
}
File file = new File(destPath + File.separator + fileName);
ImageIO.write(image, FORMAT_NAME, file);
return file;
}
private static BufferedImage createImage(
String content, String imgPath, boolean needCompress, QRCodeConfig qrCodeConfig)
throws Exception {
int codewidth = QRCODE_WIDTH;
int codeheight = QRCODE_HEIGHT;
if (qrCodeConfig != null) {
if (qrCodeConfig.getWidth() > 0) {
codewidth = qrCodeConfig.getWidth();
}
if (qrCodeConfig.getHeight() > 0) {
codeheight = qrCodeConfig.getHeight();
}
}
Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.Q);
hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
hints.put(EncodeHintType.MARGIN, 0);
BitMatrix bitMatrix =
new MultiFormatWriter()
.encode(content, BarcodeFormat.QR_CODE, codewidth, codeheight, hints);
bitMatrix = deleteWhite(bitMatrix);
int width = bitMatrix.getWidth();
int height = bitMatrix.getHeight();
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
}
}
if (imgPath == null || "".equals(imgPath)) {
return image;
}
// 插入图片
QRCodeUtil.insertImage(image, imgPath, needCompress);
return image;
}
