java如何通过域名查ip_JAVA实现通过IP反查域名

package org.util.test.*;

import java.net.*;

public class InetAddressDemo {

public static void main(String[] args) {

try{

//使用域名创建对象

InetAddress inet1 = InetAddress.getByName(“www.163.com”);

System.out.println(inet1);

//使用IP创建对象

InetAddress inet2 = InetAddress.getByName(“127.0.0.1”);

System.out.println(inet2);

//获得本机地址对象

InetAddress inet3 = InetAddress.getLocalHost();

System.out.println(inet3);

//获得对象中存储的域名

String host = inet3.getHostName();

System.out.println(“域名：” + host);

//获得对象中存储的IP

String ip = inet3.getHostAddress();

System.out.println(“IP:” + ip);

}catch(Exception e){}

}

}