Java学习 之 网络编程之InetAddress

import java.io.IOException;
import java.net.InetAddress;


public class IntAddressTest {
	
	public static void main(String[] args) throws IOException {
		// 根据字符串来获取InetAddress实例
		InetAddress inetAddress = InetAddress.getByName("www.baidu.com");
		System.out.println("www.baidu.com是否可达 ："+inetAddress.isReachable(2000));
		System.out.println("获取IP字符串："+inetAddress.getHostAddress());
		System.out.println("获取IP地址的主机名："+inetAddress.getHostName());
		
		// 根据原始的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("本地是否可达 ："+inetAddress.isReachable(2000));
		System.out.println("获得本地InetAddress实例对应的全限定域名："+local.getCanonicalHostName());
	}
	
}