android擷取wifi外網ip的方法

android擷取wifi外網ip的方法

// 擷取外網IPpublic static String GetNetIp() {URL infoUrl = null;InputStream inStream = null;try {// http://iframe.ip138.com/ic.asp// infoUrl = new URL(http://city.ip138.com/city0.asp);infoUrl = new URL(http://ip38.com);URLConnection connection = infoUrl.openConnection();HttpURLConnection httpConnection = (HttpURLConnection) connection;int responseCode = httpConnection.getResponseCode();if (responseCode == HttpURLConnection.HTTP_OK) {inStream = httpConnection.getInputStream();BufferedReader reader = new BufferedReader(new InputStreamReader(inStream, utf-8));StringBuilder strber = new StringBuilder();String line = null;while ((line = reader.readLine()) != null)strber.append(line + );inStream.close();// 從反饋的結果中提取出IP地址// int start = strber.indexOf([);// Log.d(zph,  + start);// int end = strber.indexOf(], start + 1);// Log.d(zph,  + end);line = strber.substring(378, 395);line.replaceAll( , );return line;}} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return null;}

另有一個擷取外網IP的高端方法

 

public static String GetNetIp(){String IP = ;try{String address = http://ip.taobao.com/service/getIpInfo2.php?ip=myip;URL url = new URL(address);HttpURLConnection connection = (HttpURLConnection) url.openConnection();connection.setUseCaches(false);if (connection.getResponseCode() == HttpURLConnection.HTTP_OK){InputStream in = connection.getInputStream();// 將流轉化為字串BufferedReader reader = new BufferedReader(new InputStreamReader(in));String tmpString = ;StringBuilder retJSON = new StringBuilder();while ((tmpString = reader.readLine()) != null){retJSON.append(tmpString + );}JSONObject jsonObject = new JSONObject(retJSON.toString());String code = jsonObject.getString(code);if (code.equals(0)){JSONObject data = jsonObject.getJSONObject(data);IP = data.getString(ip) + ( + data.getString(country)+ data.getString(area) + 區+ data.getString(region) + data.getString(city)+ data.getString(isp) + );Log.e(提示, 您的IP地址是： + IP);}else{IP = ;Log.e(提示, IP介面異常，無法擷取IP地址！);}}else{IP = ;Log.e(提示, 網路連接異常，無法擷取IP地址！);}}catch (Exception e){IP = ;Log.e(提示, 擷取IP地址時出現異常，異常資訊是： + e.toString());}return IP;}