InetAddress类
相关方法：
- getLocalHost()：获取本机InetAddress对象；
- getByName()：根据指定主机名/域名获取IP地址对象；
- getHostName()：获取Inet Address对象的主机名；
- getHostAddress()：获取InerAddress对象的地址；
代码演示：
import java.net.InetAddress;
import java.net.UnknownHostException;
/**
* @author: 86199
* @date: 2023/5/14 16:19
* @description: 演示InetAddress类的使用
*/
public class API_ {
public static void main(String[] args) throws UnknownHostException {
//1. 获取本机的InetAddress对象
InetAddress localHost = InetAddress.getLocalHost();
System.out.println("localHost = " + localHost);
//2. 根据指定的主机名，获取 InetAddress对象
InetAddress host1 = InetAddress.getByName("LAPTOP-6CFCSNPH");
System.out.println("host1 = " + host1);
//3. 根据域名返回 InetAddress对象
InetAddress host2 = InetAddress.getByName("www.baidu.com");
System.out.println("host2 = " + host2);//www.baidu.com/110.242.68.4
//4. 通过 InetAddress对象 获取地址
String hostAddress = host2.getHostAddress();//IP地址
System.out.println("host2的 ip = " + hostAddress);
//5. 通过 InetAddress对象 获取 主机名或域名
String hostName = host2.getHostName();
System.out.println("host2 对应的主机名/域名 = " + hostName);
}
}
/*
运行结果：
localHost = LAPTOP-6CFCSNPH/xx.xx.xx.xx
host1 = LAPTOP-6CFCSNPH/xx.xx.xx.xx
host2 = www.baidu.com/110.242.68.3
host2的 ip = 110.242.68.3
host2 对应的主机名/域名 = www.baidu.com
*/