[Java] InetAddress 獲得ip地址和主機名稱__java

import java.net.*; public class IPAddressTest{ public static void main(String[] args){ try{ //獲得原生InetAddress資訊 InetAddress IP = InetAddress.getLocalHost(); showInfo(IP); //從名字獲得 InetAddress資訊 IP = InetAddress.getByName("www.sina.com.cn"); showInfo(IP); //從IP 位址 獲得 InetAddress資訊 byte[] bs = new byte[]{(byte)61,(byte)172,(byte)201,(byte)194}; IP = InetAddress.getByAddress(bs); showInfo(IP); } catch(java.net.UnknownHostException e){ e.printStackTrace(); } } //將InetAddress 中的資訊顯示出來 public static void showInfo(InetAddress IP){ String name = IP.getHostName(); String address = IP.getHostAddress(); System.out.println(name); System.out.println(address); System.out.println("------------------------------"); } }