二维码带log

public static String createQrcodeImg(String content,String filename,String logoPath,int imgHeight,int imgWidth){
	String retstr = "";
	File file = new File(filename);
	MultiFormatWriter multiFormatWriter = null;
    BitMatrix bm = null;
    BufferedImage image = null;
    try {
        multiFormatWriter = new MultiFormatWriter();
        
     // 用于设置QR二维码參数
        Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
        // 设置QR二维码的纠错级别（H为最高级别）详细级别信息
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
        // 设置编码方式
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        hints.put(EncodeHintType.MARGIN, 0);
        //hints.put(EncodeHintType.MAX_SIZE, 350);
        //hints.put(EncodeHintType.MIN_SIZE, 100);

        // 參数顺序分别为：编码内容。编码类型，生成图片宽度，生成图片高度，设置參数
        bm = multiFormatWriter.encode(content, BarcodeFormat.QR_CODE, imgWidth, imgHeight,hints);

        int w = bm.getWidth();
        int h = bm.getHeight();
        image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

        // 開始利用二维码数据创建Bitmap图片，分别设为黑白两色
        for (int x = 0; x < w; x++) {
            for (int y = 0; y < h; y++) {
                image.setRGB(x, y, bm.get(x, y) ?Color.BLACK.getRGB() : Color.WHITE.getRGB());
            }
        }

        //this.addLogo_QRCode(image, new File(zxingconfig.getLogoPath()), zxingconfig.getLogoConfig());
        
     // 对象流传输
        BufferedImage imagelogo = image;
        Graphics2D g = imagelogo.createGraphics();

        // 读取Logo图片
        File logofile = new File(logoPath);
        BufferedImage logo = ImageIO.read(logofile);

        // 设置logo的大小,本人设置为二维码图片的20%,由于过大会盖掉二维码
        int widthLogo = logo.getWidth(null) > imagelogo.getWidth() * 2 / 10 ? (imagelogo.getWidth() * 2 / 10) : logo.getWidth(null), heightLogo = logo
                .getHeight(null) > imagelogo.getHeight() * 2 / 10 ?
(imagelogo.getHeight() * 2 / 10) : logo.getWidth(null);

        // 计算图片放置位置
        // logo放在中心
        int x = (imagelogo.getWidth() - widthLogo) / 2;
        int y = (imagelogo.getHeight() - heightLogo) / 2;
        // 開始绘制图片
        g.drawImage(logo, x, y, widthLogo, heightLogo, null);
        g.drawRoundRect(x, y, widthLogo, heightLogo, 15, 15);
        //g.setStroke(new BasicStroke(2));
        //g.setColor(Color.WHITE);
        g.drawRect(x, y, widthLogo, heightLogo);

        g.dispose();
        logo.flush();
        imagelogo.flush();
        
        ImageIO.write(image, "png", file);   // 图片写出
        Thread.sleep(500);// 缓冲

        //zp.parseQR_CODEImage(bim);
        retstr = SysUtil.RET_SUCCESS;
    }  catch (WriterException e) {
		log.error("error",e);
		retstr = SysUtil.RET_FAIL;
    }  
	return retstr;
}