iptestall.java

通过InetAddress类中的getHostAddress获取Ip地址

package lesson20;

import java.net.*;

public class IPTestAll {
	public static void main(String[] args) {
    
		IPTestAll.getAllIPInfo();
	}

	public static void getAllIPInfo() {
		InetAddress inet = null;
		int i = 0;
		for (; i < 255; i++) {
			String ip = "192.168.0.0";
			ip = ip + i;
			try {
				inet = InetAddress.getByName(ip);
			} catch (UnknownHostException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			if (inet.getHostName().equals(inet.getHostAddress())) {
				System.out.println("主机IP： " + inet.getHostAddress());
				System.out.println("此IP无人使用！");
				continue;
			}
			System.out.println("主机名： " + inet.getHostName());
			System.out.println("主机IP： " + inet.getHostAddress());
		}
	}
}