android调用代码查询IP的网站

完整方法如下：

/**

     * 获取外网的IP(要访问Url，要放到后台线程里处理)

     * 

     * @Title: GetNetIp

     * @Description:

     * @param @return

     * @return String

     * @throws

     */

    public String GetNetIp() {

        URL infoUrl = null;

        InputStream inStream = null;

        String ipLine = "-1";

        HttpURLConnection httpConnection = null;

        try {

            infoUrl = new URL("http://www.1356789.com/");

            URLConnection connection = infoUrl.openConnection();

            httpConnection = (HttpURLConnection) connection;

            int responseCode = httpConnection.getResponseCode();

            if (responseCode == HttpURLConnection.HTTP_OK) {

                inStream = httpConnection.getInputStream();

                BufferedReader reader = new BufferedReader(

                        new InputStreamReader(inStream, "gb2312"));

                StringBuilder strber = new StringBuilder();

                String line = null;

                while ((line = reader.readLine()) != null){

                    strber.append(line + "\n");

                    if(line.contains("您的IP是")){

                        ipLine = line.substring(6,line.length());

                        break;

                    }

                }

                Log.i(Exchange.EXTAG, "netIp:"+ipLine);

            }

        } catch (MalformedURLException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        } finally {

            try {

                inStream.close();

                httpConnection.disconnect();

            } catch (IOException e) {

                e.printStackTrace();

            }

        }

        return ipLine;

    }