code: public static BufferedImage getLocalBufferedImage(File res) {
  		try {
  			BufferedImage read = ImageIO.read(res);
  			return read;
  		} catch (FileNotFoundException e) {
  			logger.error("FileNotFound", e);
  		} catch (IOException e) {
  			logger.error("getLocalBufferedImage IO error", e);
  		}
  		return null;
  	}
docs: 通过文件获取BufferedImage
  
  @param res
  @return