InetAddress

InetAddress: 用于标志网络上的硬件资源(表示IP地址的相关信息)

public class InetAddressTest {

    public static void main(String[] args) throws UnknownHostException {
        // 获取本机的intAddres实例
        InetAddress address = InetAddress.getLocalHost();//得到InetAddress实例
        System.out.println("本机IP地址:"+address.getHostAddress());//获取本机的IP地址
        System.out.println("获取本机名:"+address.getHostName());//获取本机名
        byte[] bytes = address.getAddress();//获取字节数组形式的IP地址
        System.out.println(Arrays.toString(bytes));
        System.out.println(address);//lah-PC/192.168.56.1
        
        InetAddress address2 = InetAddress.getByName("lah-pc");
        //InetAddress address2 = InetAddress.getByAddress(bytes);
        System.out.println("本机IP地址:"+address2.getHostAddress());//获取本机的IP地址
        System.out.println("获取本机名:"+address2.getHostName());//获取本机名
        
    }

}