System.out.println(oauth.getGetCodeRedirectUrl());
System.out.print("Put the code you got here.[Enter]:");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String code = br.readLine();
System.out.println("code : " + code);
AccessToken at = oauth.tradeAccessTokenWithCode(code);
System.out.println("at : " + at.getAccessToken());
System.out.println("uid : " + at.getDoubanUserId());
return at.getAccessToken();
} catch (DoubanException ex) {
Logger.getLogger(PlayGround.class.getName()).log(Level.SEVERE, null, ex);