package com.ruoyi.common.utils;

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Enumeration;

public class IPUtils {

    public static String getIp() {
        try {
            // 获取所有网络接口
            Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();

            while (networkInterfaces.hasMoreElements()) {
                NetworkInterface networkInterface = networkInterfaces.nextElement();
                // 获取每个网络接口的所有IP地址
                Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();
                while (inetAddresses.hasMoreElements()) {
                    InetAddress inetAddress = inetAddresses.nextElement();
                    // 打印IP地址
                    System.out.println("IP address: " + inetAddress.getHostAddress());
                    return inetAddress.getHostAddress();
                }
            }
        } catch (SocketException e) {
            e.printStackTrace();

        }
        return null;
    }

    public static String getIp2() {
        try {
            // 获取本地主机
            InetAddress localhost = InetAddress.getLocalHost();
            System.out.println("本机名称: " + localhost.getHostName());
            System.out.println("本机 IP 地址: " + localhost.getHostAddress());

            // 获取所有与本地主机关联的 IP 地址
            InetAddress[] allLocalAddresses = InetAddress.getAllByName(localhost.getHostName());
            for (InetAddress address : allLocalAddresses) {
                System.out.println("本机所有 IP 地址: " + address.getHostAddress());
                return address.getHostAddress();
            }
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
        return null;
    }
}