public String getCityID() throws IOException{        URL url = new URL("http://61.4.185.48:81/g/");        HttpURLConnection urlcon = (HttpURLConnection) url.openConnection();        // 获取连接        InputStream is = urlcon.getInputStream();        BufferedReader buffer = new BufferedReader(new InputStreamReader(is));        StringBuffer bs = new StringBuffer();        String l = null;        while ((l = buffer.readLine()) != null) {            bs.append(l);        }        String getStr = bs.toString();        System.out.println(getStr);        // var ip="121.33.190.178";var id=101280101;if(typeof(id_callback)!="undefined"){id_callback();}        // 获取var id=后面的城市ID        String cityID= getStr.substring(getStr.indexOf("id=") + 3,                getStr.indexOf(";if"));        return cityID;            }

try{                URL url = new URL("http://www.weather.com.cn/data/sk/101110101.html");                URLConnection conn = url.openConnection();                BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(),"utf-8"));//转码。                String line = null;                while ((line = reader.readLine()) != null)                    strBuf.append(line + " ");                    reader.close();            }catch(MalformedURLException e) {                e.printStackTrace();             }catch(IOException e){                e.printStackTrace();             }                String strJson= strBuf.toString();