java读取图片长宽问题

参考

http://www.java3z.com/cwbwebhome/article/article5a/571.html

public int getPicWidthOrHeight(String photo, String flag) {
		try {
			File _file = new File(photo);
			Image src = javax.imageio.ImageIO.read(_file);
			int wideth = src.getWidth(null);
			int height = src.getHeight(null);
			if("W".equalsIgnoreCase(flag)){
				return wideth;
			}else{
				return height;
			}

		} catch (Exception e) {
			// TODO: handle exception
			return 0;
		}


	}