zxing 帶logo的二維碼

public class Test {
      public static void main(String[] args) throws WriterException, IOException {
            String content = "wetsdfqeojsdfasdf" ;// 內容
        int width = 400; // 圖像寬度
        int height = 400; // 圖像高度

        // 參數設置
       Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
        hints.put(EncodeHintType. CHARACTER_SET, "UTF-8" ); // 內容編碼
        //容錯
       hints.put(EncodeHintType. ERROR_CORRECTION,ErrorCorrectionLevel.L);
        //矩陣形狀 - 長方形 - 正方形
        hints.put(EncodeHintType. DATA_MATRIX_SHAPE, SymbolShapeHint.FORCE_NONE );
        //矩陣邊緣
        hints.put(EncodeHintType. MARGIN, 1);
      
       BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
                 BarcodeFormat. QR_CODE, width, height, hints); // 生成矩陣
        //顏色
      // MatrixToImageConfig config = new MatrixToImageConfig(Integer.MAX_VALUE -5548, MatrixToImageConfig.WHITE );
      
      writeToFile(bitMatrix, "png" , new File("d://zxing.png"), "d://3.png");
      
      // MatrixToImageWriter. writeToFile(bitMatrix, "png ", new File("d://zng.png") );
       /*MemoryCacheImageOutputStream outputStream = new MemoryCacheImageOutputStream(null);
       BufferedImage im = new BufferedImage(0, 0, BufferedImage.TYPE_INT_RGB);
       ImageIO.write( im, "png ", new File("d://img.png"));*/
      
      
       System. out.println( "完成生成");
 }
       /**
     * 
     * @param matrix 二維碼矩陣相關
     * @param format 二維碼圖片格式
     * @param file 二維碼圖片文件
     * @param logoPath logo路徑
     * @throws IOException
     */ 
    public static void writeToFile(BitMatrix matrix,String format,File file,String logoPath) throws IOException { 
        BufferedImage barCode = toBufferedImage(matrix); 
         
        //載入logo 
        BufferedImage logo = ImageIO. read(new File(logoPath)); 
       
        //System.out.println(String.format("barcode width :%d logo: %d", barCode.getWidth(),logo.getWidth()));
        int nestX = (barCode.getWidth()-logo.getWidth())/2;
        int nestY = (barCode.getHeight()-logo.getHeight() )/2;
        System. out.println(nestX);
       
        Graphics2D gs = barCode.createGraphics(); 
        gs.drawImage(logo, nestX, nestY, null); 
        gs.dispose(); 
        logo.flush(); 
        if(!ImageIO.write(barCode, format, file)){ 
            throw new IOException( "Could not write an image of format " + format + " to " + file);   
        } 
       
    } 
   
    public static BufferedImage toBufferedImage(BitMatrix matrix){ 
        int width = matrix.getWidth(); 
        int height = matrix.getHeight(); 
        int white = 0xFF000000;
        int black = 0xFFFFFFFF;
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); 
         
        for(int x=0;x<width;x++){ 
            for( int y=0;y<height;y++){ 
                image.setRGB(x, y, matrix.get(x, y) ?  white: black ); 
            } 
        } 
        return image;    
    } 

}