URL url = new          URL("http://ip.taobao.com/service/getIpInfo.php?ip="+"27.223.68.94");          HttpURLConnection connection = (HttpURLConnection)          url.openConnection(); connection.setDoOutput(true);         connection.setDoInput(true); connection.setRequestMethod("POST");          connection.setUseCaches(false);          connection.setInstanceFollowRedirects(true);          connection.setRequestProperty("Content-Type",          "application/x-www-form-urlencoded");                    connection.connect();                            JSONObject jsono = new JSONObject(new JSONTokener(                new InputStreamReader(connection.getInputStream())));        String city = "";        String rep = jsono.toString();        String[] s = rep.split(",");        for (int i = 0; i < s.length; i++) {            if (s[i].contains("市")) {                if (s[i].length() > 8) {                    city = s[i].substring(8, s[i].length() - 2);                    break;                } else {                    city = "";                }            }        }        System.out.println(city);