问如何获取内部IP地址？

EN

import java.net.InetAddress;

public class Main {

    public static void main(String[] args) {
        try {
            InetAddress i = InetAddress.getLocalHost();
            System.out.println(i);                  // host name and IP address
            System.out.println(i.getHostName());    // name
            System.out.println(i.getHostAddress()); // IP address only
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

InetAddress ownIP=InetAddress.getLocalHost();
System.out.println("IP of my system is := "+ownIP.getHostAddress());`