Tesseract -ocr - java - 报错JFIF APP0 must be first marker after SOI 解决

 //转换图片为png格式
    public static String convertPng(String url) {
        String tarFilePath = url.substring(0, url.lastIndexOf(".")) + ".png";
        try {
            BufferedImage bufferedImage = ImageIO.read(new File(url));
            BufferedImage newBufferedImage = new BufferedImage(bufferedImage.getWidth(), bufferedImage.getHeight(), BufferedImage.TYPE_INT_RGB);
            newBufferedImage.createGraphics().drawImage(bufferedImage, 0, 0, Color.white, null);
            ImageIO.write(newBufferedImage, "png", new File(tarFilePath));
        } catch (IOException e) {
           return "";
        }
        return tarFilePath;
    }