获取移动网络ip地址

Question

你好，我用这种方法获取移动网络IP地址

public static String getMobileIPAddress() {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress()) {
                    return  addr.getHostAddress();
                }
            }
        }
    } catch (Exception ex) { } // for now eat exceptions

    return "";
}

但是返回值似乎不是IP :fe80：：dc19 19:94ff:fe6f:ae7b% but 0

Answer 1

实际上你的代码是正确的。它得到了InetAddresses列表，其中ip地址也与mac地址一起出现。您必须使用InetAddressUtils.isIPv4Address或addr instanceof Inet4Address (API >= 23)来过滤其中的ip地址。检查如下：

public static String getMobileIPAddress() {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress() && 
                    addr instanceof Inet4Address) {
                    return  addr.getHostAddress();
                }
            }
        }
    } catch (Exception ex) { } // for now eat exceptions
    return "";
}

Answer 2

此代码获取WIFI IP地址：

WifiManager wm = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
String ip = Formatter.formatIpAddress(wm.getConnectionInfo().getIpAddress());