Java 获取本机IP

Java 获取本机IP

注意：代码中去除了127.0.0.1

获取本机所有IP

package com.airport.controller;

import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;

public class TestController {

    /**
     * 获取本机IP
     *
     * @return List<String>
     * @author 云深小麦
     */
    private static List<String> getIp() {
        List<String> result = new ArrayList<>();
        try {
            Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
            while (networkInterfaces.hasMoreElements()) {
                NetworkInterface netInterface = networkInterfaces.nextElement();
                Enumeration<InetAddress> addresses = netInterface.getInetAddresses();
                while (addresses.hasMoreElements()) {
                    InetAddress ip = addresses.nextElement();
                    if (ip instanceof Inet4Address) {
                        String hostAddress = ip.getHostAddress();
                        // 去除127.0.0.1
                        if (!hostAddress.equals("127.0.0.1")) {
                            result.add(hostAddress);
                        }
                    }
                }
            }
        } catch (Exception e) {
            return null;
        }
        return result;
    }

    public static void main(String[] args) {
        for (String ip : getIp()) {
            System.out.println("本机IP: " + ip);
        }

    }
}

main方法输出

本机IP: 192.168.31.12