windows和linux下的本機IP的獲取(親測有效)

package com.handsight.platform.fras.util;



import org.apache.log4j.Logger;

import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

/**
 * Created by Lft on 2019/2/28 10:30
 */
/**
 * 常用獲取客戶端信息的工具
 * 
 */
public final class NetworkUtil {

    /**
     *
     *@Description : windons下的ip
     *
     */
    public static InetAddress getLocalHostLANAddress() throws Exception {
        try {
            InetAddress candidateAddress = null;
            // 遍歷所有的網絡接口
            for (Enumeration ifaces = NetworkInterface.getNetworkInterfaces(); ifaces.hasMoreElements(); ) {
                NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
                // 在所有的接口下再遍歷IP
                for (Enumeration inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements(); ) {
                    InetAddress inetAddr = (InetAddress) inetAddrs.nextElement();
                    if (!inetAddr.isLoopbackAddress()) {// 排除loopback類型地址
                        if (inetAddr.isSiteLocalAddress()) {
                            // 如果是site-local地址，就是它了
                            return inetAddr;
                        } else if (candidateAddress == null) {
                            // site-local類型的地址未被發現，先記錄候選地址
                            candidateAddress = inetAddr;
                        }
                    }
                }
            }
            if (candidateAddress != null) {
                return candidateAddress;
            }
            // 如果沒有發現 non-loopback地址.只能用最次選的方案
            InetAddress jdkSuppliedAddress = InetAddress.getLocalHost();
            return jdkSuppliedAddress;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     *
     *@Description :
     *
     *//**
     * 獲取Linux下的IP地址
     *
     * @return IP地址
     * @throws SocketException
     */
    public static String getLinuxLocalIp() throws SocketException {
        String ip = "";
        try {
            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
                NetworkInterface intf = en.nextElement();
                String name = intf.getName();
                if (!name.contains("docker") && !name.contains("lo")) {
                    for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                        InetAddress inetAddress = enumIpAddr.nextElement();
                        if (!inetAddress.isLoopbackAddress()) {
                            String ipaddress = inetAddress.getHostAddress().toString();
                            if (!ipaddress.contains("::") && !ipaddress.contains("0:0:") && !ipaddress.contains("fe80")) {
                                ip = ipaddress;
                                System.out.println(ipaddress);
                            }
                        }
                    }
                }
            }
        } catch (SocketException ex) {
            System.out.println("獲取ip地址異常");
            ip = "127.0.0.1";
            ex.printStackTrace();
        }
        System.out.println("IP:"+ip);
        return ip;
    }
}