java后端判断用户是否关注公众号

/*** 判断用户是否关注了公众号* @param openid* @return*/
public static boolean judgeIsFollow(String openid){int subscribe = 0;
//        String url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token="+token+"&openid="+openid+"&lang=zh_CN";try {  
//        String token = getTicket();String token = "";if (StringUtil.isEmpty(token)) {token = getAccess_token();}String url = String.format(Constant.GzGzhUrl, token, openid);URL urlGet = new URL(url);  HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();  http.setRequestMethod("GET"); // 必须是get方式请求  http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");  http.setDoOutput(true);  http.setDoInput(true);  http.connect();  InputStream is = http.getInputStream();  int size = is.available();  byte[] jsonBytes = new byte[size];  is.read(jsonBytes);  String message = new String(jsonBytes, "UTF-8");  JSONObject demoJson = JSONObject.fromObject(message);  subscribe = demoJson.getInt("subscribe");is.close();  } catch (Exception e) {  e.printStackTrace();  }return 1==subscribe?true:false;
}