Java程序获取本机IP地址

获取本机ip地址的两种方法：

方法一：Linux下不可行，Windows下据说可行，尚未验证......

        try {
            InetAddress localhost = InetAddress.getLocalHost();
            System.out.println("localhost: "+localhost.getHostAddress());
            System.out.println("localhost: "+localhost.getHostName());
        } catch(UnknownHostException uhe) {
            System.err.println("Localhost not seeable. Something is odd. ");
        }

  Linux 下运行结果：

  localhost: 127.0.1.1
  localhost: XXX

 

方法二：Linux下可行，Windows下未验证......

        try {
            Enumeration allNetInterfaces = NetworkInterface.getNetworkInterfaces();
            InetAddress ip = null;
            while (allNetInterfaces.hasMoreElements()) {
                NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement();
                //System.out.println(netInterface.getName());
                Enumeration addresses = netInterface.getInetAddresses();
                while (addresses.hasMoreElements()) {
                    ip = (InetAddress) addresses.nextElement();
                    if (ip != null && ip instanceof Inet4Address) {
                        System.out.println("本机的IP = " + ip.getHostAddress());
                    }
                }
            }
        } catch (SocketException e) {
            e.printStackTrace();
        }

 

  Linux下运行结果：

       本机的IP = 192.168.1.100
       本机的IP = 127.0.0.1