Java 获取本机IP地址的方法的两种方法

import java.net.InetAddress;

import java.net.UnknownHostException;

public class GetIPAddress {

    public static void main(String[] args) {

        try {

            InetAddress inetAddress = InetAddress.getLocalHost();

            System.out.println("本机 IP 地址: " + inetAddress.getHostAddress());

        } catch (UnknownHostException e) {

            e.printStackTrace();

        }

    }

}

import java.net.InetAddress;

import java.net.NetworkInterface;

import java.net.SocketException;

import java.util.Enumeration;



public class GetIPAddressByInterface {

    public static void main(String[] args) {

        try {

            Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();

            while (networkInterfaces.hasMoreElements()) {

                NetworkInterface networkInterface = networkInterfaces.nextElement();

                Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();

                while (inetAddresses.hasMoreElements()) {

                    InetAddress inetAddress = inetAddresses.nextElement();

                    if (!inetAddress.isLoopbackAddress() && inetAddress.getHostAddress().indexOf(':') == -1) {

                        System.out.println("本机 IP 地址: " + inetAddress.getHostAddress());

                    }

                }

            }

        } catch (SocketException e) {

            e.printStackTrace();

        }

    }

}