<uses-permission android:name="android.permission.INTERNET"/>   <!--必写-->

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>  <!--必写—>

<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

// 得到本机ip地址

    public String getLocalHostIp()

    {

        String ipaddress = "";

        try

        {

            Enumeration<NetworkInterface> en = NetworkInterface

                    .getNetworkInterfaces();

            // 遍历所用的网络接口

            while (en.hasMoreElements())

            {

                NetworkInterface nif = en.nextElement();// 得到每一个网络接口绑定的所有ip

                Enumeration<InetAddress> inet = nif.getInetAddresses();

                // 遍历每一个接口绑定的所有ip

                while (inet.hasMoreElements())

                {

                    InetAddress ip = inet.nextElement();

                    if (!ip.isLoopbackAddress()

                            && InetAddressUtils.isIPv4Address(ip

                                    .getHostAddress()))

                    {

                        return ipaddress = "本机的ip是" + "：" + ip.getHostAddress();

                    }

                }

            }

        }

        catch (SocketException e)

        {

            Log.e("feige", "获取本地ip地址失败");

            e.printStackTrace();

        }

        return ipaddress;

    }

    // 得到本机Mac地址

    public String getLocalMac()

    {

        String mac = "";

        // 获取wifi管理器

        WifiManager wifiMng = (WifiManager) getSystemService(Context.WIFI_SERVICE);

        WifiInfo wifiInfor = wifiMng.getConnectionInfo();

        mac = "本机的mac地址是：" + wifiInfor.getMacAddress();

        return mac;

    }