String path ="puzzle/source"+i+".jpg";
//拼图原图
InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(path);
Image bi = ImageIO.read(inputStream);

String path ="puzzle/source"+i+".jpg";
//拼图原图
InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(path);
Image bi = ImageIO.read(inputStream);