public class NetManager {

    /**
     * 獲取用戶IP地址<br/>
     * 注意：需要在androidManifest.xml中聲明下面三個權(quán)限才能正常使用該方法，否則會空指針異常
     * <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     * <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     * <uses-permission android:name="android.permission.INTERNET"/>
     */
    public static String getIpAddress(Context context) {
        if (context == null) {
            return "";
        }

        ConnectivityManager conMann = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo mobileNetworkInfo = conMann.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
        NetworkInfo wifiNetworkInfo = conMann.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

        if (mobileNetworkInfo.isConnected()) {
            return getLocalIpAddress();
        } else if (wifiNetworkInfo.isConnected()) {
            return getWifiAddress(context);
        }
        return "";
    }

    private static String getLocalIpAddress() {
        try {
            ArrayList<NetworkInterface> nilist = Collections.list(NetworkInterface.getNetworkInterfaces());
            for (NetworkInterface ni : nilist) {
                ArrayList<InetAddress> ialist = Collections.list(ni.getInetAddresses());
                for (InetAddress address : ialist) {
                    if (!address.isLoopbackAddress() && address instanceof Inet4Address) {
                        return address.getHostAddress();
                    }
                }
            }
        } catch (SocketException e) {
            e.printStackTrace();
        }
        return "";
    }

    private static String getWifiAddress(Context context) {
        if (context == null) {
            return "";
        }
        WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
        WifiInfo wifiInfo = wifiManager.getConnectionInfo();
        int ipAddress = wifiInfo.getIpAddress();
        return intToIp(ipAddress);
    }

    private static String intToIp(int ipInt) {
        String s = (ipInt & 0xFF) + "." +
                ((ipInt >> 8) & 0xFF) + "." +
                ((ipInt >> 16) & 0xFF) + "." +
                ((ipInt >> 24) & 0xFF);
        return s;
    }
}

經(jīng)過實測，并不能真的獲取到網(wǎng)絡(luò)上實際的外網(wǎng)IP地址，只能拿到他下面的內(nèi)網(wǎng)IP地址，湊合著用吧

參考來源：https://blog.csdn.net/sinat_16458039/article/details/50260589文章來源地址http://www.zghlxwxcb.cn/news/detail-566273.html

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