Android获取外网和内网的IP

/**
      * 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 static String GetNetIp() {
         URL infoUrl = null ;
         InputStream inStream = null ;
         String ipLine = "" ;
         HttpURLConnection httpConnection = null ;
         try {
             infoUrl = new URL( "http://ip168.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, "utf-8" ));
                 StringBuilder strber = new StringBuilder();
                 String line = null ;
                 while ((line = reader.readLine()) != null )
                     strber.append(line + "\n" );
 
                 Pattern pattern = Pattern
                         .compile( "((?:(?:25[0-5]|2[0-4]\\d|((1\\d{2})|([1-9]?\\d)))\\.){3}(?:25[0-5]|2[0-4]\\d|((1\\d{2})|([1-9]?\\d))))" );
                 Matcher matcher = pattern.matcher(strber.toString());
                 if (matcher.find()) {
                     ipLine = matcher.group();
                 }
             }
 
         } catch (MalformedURLException e) {
             e.printStackTrace();
         } catch (IOException e) {
             e.printStackTrace();
         } finally {
             try {
                 inStream.close();
                 httpConnection.disconnect();
             } catch (IOException e) {
                 e.printStackTrace();
             }
         }
         return ipLine;
     }
 
     /**
      * 获取本地IP
      *
      * @return
      */
     public static String getLocalIpAddress() {
         try {
             Enumeration<networkinterface> en = NetworkInterface
                     .getNetworkInterfaces();
             while (en.hasMoreElements()) {
                 NetworkInterface ni = en.nextElement();
                 Enumeration<inetaddress> enIp = ni.getInetAddresses();
                 while (enIp.hasMoreElements()) {
                     InetAddress inet = enIp.nextElement();
                     if (!inet.isLoopbackAddress()
                             && (inet instanceof Inet4Address)) {
                         return inet.getHostAddress().toString();
                     }
                 }
             }
         } catch (SocketException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
 
         return "0" ;
     }</inetaddress></networkinterface>
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转载自blog.csdn.net/caizehui/article/details/46605147