Java - 通过优酷网视频播放网址解析出Mp4格式的单个文件

// 正则表达式去除视频id
String path = "http://v.youku.com/v_show/id_XNjExMTQ5OTIw.html";
Pattern p = Pattern.compile(".*id_(\\w+)\\.html");
Matcher m = p.matcher(path);
String id = "";
if (m.find()) {
	id = m.group(1);
}
// 解析部分
String s = "https://openapi.youku.com/v2/videos/files.json?client_id=513edb6cf9833ca7&client_secret=eaf151ffdbf1383d934ab4cb91250fa6&type=play&video_id=";
// 这里为HTTP获取得到Response，自己去实现
String json = HttpUtil.changeInputStream(HttpUtil.getInputStream(s + id));
// 解析Json
JSONObject object = new JSONObject(json);
object = object.getJSONObject("files");
object = object.getJSONObject("3gphd");
object = object.getJSONArray("segs").getJSONObject(0);
String url = object.getString("url");
System.out.println(url);