慕课网_Java Socket应用---通信是这样练成的

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Arrays;

public class Hello {
	public static void main(String[] args) throws UnknownHostException {
		// 获取本机的InetAddress实例
		InetAddress address = InetAddress.getLocalHost();
		System.out.println("计算机名：" + address.getHostName());
		System.out.println("IP地址：" + address.getHostAddress());
		byte[] bytes = address.getAddress();// 获取字节数组形式的IP地址
		System.out.println("字节数组形式的IP：" + Arrays.toString(bytes));
		System.out.println(address);// 直接输出InetAddress对象

		// 根据机器名获取InetAddress实例
		InetAddress address2 = InetAddress.getByName("DESKTOP-2HKVB4E");
		System.out.println("计算机名：" + address2.getHostName());
		System.out.println("IP地址：" + address2.getHostAddress());

		// 根据IP地址获取InetAddress实例
		InetAddress address3 = InetAddress.getByName("192.168.31.108");
		System.out.println("计算机名：" + address3.getHostName());
		System.out.println("IP地址：" + address3.getHostAddress());
	}
}