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){}

  }

}