[Java]网络通信

netAddress类

java.net包中的InetAddress类是与IP地址相关的类，利用该类可以获取IP地址、主机地址等信息。

import java.net.InetAddress;import java.net.UnknownHostException;public class Address {    public static void main(String[] args) {        InetAddress ip;        try {            ip = InetAddress.getLocalHost();            String localname = ip.getHostName();            String localip = ip.getHostAddress();            System.out.println("本机名/本机IP地址：" + ip);            System.out.println("本机名：" + localname);            System.out.println("本机IP地址：" + localip);        } catch (UnknownHostException e) {            e.printStackTrace();        }    }}