获取本地IP地址：

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

/**
* @Description:    ip工具类
* @Author:         sbq
* @CreateDate:     2019/8/8 10:33
* @Version:        1.0
*/
public class IpUtil {
    /**
     * 获得服务器的IP地址
     */
    public static String getLocalIP() {
        String sIP = "";
        InetAddress ip = null;
        try {
            boolean bFindIP = false;
            Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface
                    .getNetworkInterfaces();
            while (netInterfaces.hasMoreElements()) {
                if (bFindIP) {
                    break;
                }
                NetworkInterface ni = (NetworkInterface) netInterfaces
                        .nextElement();
                Enumeration<InetAddress> ips = ni.getInetAddresses();
                while (ips.hasMoreElements()) {
                    ip = (InetAddress) ips.nextElement();
                    if (!ip.isLoopbackAddress()
                            && ip.getHostAddress().matches(
                            "(\\d{1,3}\\.){3}\\d{1,3}")) {
                        bFindIP = true;
                        break;
                    }
                }
            }
        } catch (Exception e) {
        }
        if (null != ip) {
            sIP = ip.getHostAddress();
        }
        return sIP;
    }

    /**
    * @Description:    获得服务器的IP地址(多网卡)
    * @Author:         sbq
    * @CreateDate:     2019/8/8 10:34
    * @Version:        1.0
    */
    public static List<String> getLocalIPS() {
        InetAddress ip = null;
        List<String> ipList = new ArrayList<String>();
        try {
            Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface
                    .getNetworkInterfaces();
            while (netInterfaces.hasMoreElements()) {
                NetworkInterface ni = (NetworkInterface) netInterfaces
                        .nextElement();
                Enumeration<InetAddress> ips = ni.getInetAddresses();
                while (ips.hasMoreElements()) {
                    ip = (InetAddress) ips.nextElement();
                    if (!ip.isLoopbackAddress()
                            && ip.getHostAddress().matches(
                            "(\\d{1,3}\\.){3}\\d{1,3}")) {
                        ipList.add(ip.getHostAddress());
                    }
                }
            }
        } catch (Exception e) {
        }
        return ipList;
    }

}