返回linux IP地址

import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

public class Test {
public static void main(String[] args) throws SocketException{
    //NetwordInterface：本机网络接口，由多个网络接口名称和对应的网络接口的ip地址列表构成。
    //返回枚举数据类型  Enumeration
    Enumeration allNetInterfaces = NetworkInterface.getNetworkInterfaces();
    
    InetAddress ip = null;
    while (allNetInterfaces.hasMoreElements())
    {
        
    NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement();
    System.out.println(netInterface.getName());
    Enumeration addresses = netInterface.getInetAddresses();
    
    while (addresses.hasMoreElements())
    {
    ip = (InetAddress) addresses.nextElement();
    if (ip != null && ip instanceof Inet4Address)
    {
    System.out.println("本机的IP = " + ip.getHostAddress());
    }
    }
    }
}
}