inetaddresstest.java

疯狂Java讲义_源码(含Java设计模式CHM

import java.net.*;
/**
 * Description:
 * <br/>Copyright (C), 2008-2010, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee [e-mail]
 * @version  1.0
 */
public class InetAddressTest
{
	public static void main(String[] args)
		throws Exception
	{
		//根据主机名来获取对应的InetAddress实例
		InetAddress ip = InetAddress.getByName("www.oneedu.cn");
		//判断是否可达
		System.out.println("oneedu是否可达：" + ip.isReachable(2000)); 
		//获取该InetAddress实例的IP字符串
		System.out.println(ip.getHostAddress());
		//根据原始IP地址来获取对应的InetAddress实例
		InetAddress local = InetAddress.getByAddress(new byte[]
		{127,0,0,1});
		System.out.println("本机是否可达：" + local.isReachable(5000)); 
		//获取该InetAddress实例对应的全限定域名
		System.out.println(local.getCanonicalHostName());		
	}
}