package com.walker.infrastructure.utils;

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

public class NetworkUtils {

    /**
     * 获取本机正在使用的网卡IP地址。
     * @return
     * @date 2023-09-05
     */
    public static final String getLocalHostIp(){
        Enumeration<NetworkInterface> interfaces = null;
        try {
            interfaces = NetworkInterface.getNetworkInterfaces();
        } catch (SocketException e) {
            System.out.println("获取本机网卡信息错误:" + e.getMessage());
            return StringUtils.EMPTY_STRING;
//            throw new ApplicationRuntimeException("获取本机网卡信息错误:" + e.getMessage(), e);
        }
        while (interfaces.hasMoreElements()) {
            NetworkInterface networkInterface = interfaces.nextElement();
            Enumeration<InetAddress> addresses = networkInterface.getInetAddresses();
            while (addresses.hasMoreElements()) {
                InetAddress address = addresses.nextElement();
                if (!address.isLoopbackAddress() && !address.isLinkLocalAddress() && address.isSiteLocalAddress()) {
                    return address.getHostAddress();
                }
            }
        }
        return StringUtils.EMPTY_STRING;
    }
}