public static void main(String[] args) { // Get the network interfaces and associated addresses for this host try { //获取本机所有网络接口的列表 Enumeration<NetworkInterface> interfaceList = NetworkInterface.getNetworkInterfaces(); if (interfaceList == null) { System.out.println("--No interfaces found--"); } else { while (interfaceList.hasMoreElements()) { NetworkInterface iface = interfaceList.nextElement(); //接口名称 System.out.println("Interface " + iface.getName() + ":"); Enumeration<InetAddress> addrList = iface.getInetAddresses(); if (!addrList.hasMoreElements()) { System.out.println("\t(No addresses for this interface)"); } while (addrList.hasMoreElements()) { InetAddress address = addrList.nextElement(); System.out.print("\tAddress " + ((address instanceof Inet4Address ? "(v4)" : (address instanceof Inet6Address ? "(v6)" : "(?)")))); //ip地址 System.out.println(": " + address.getHostAddress()); } } } } catch (SocketException se) { System.out.println("Error getting network interfaces:" + se.getMessage()); } // Get name(s)/address(es) of hosts given on command line for (String host : args) { try { System.out.println(host + ":"); InetAddress[] addressList = InetAddress.getAllByName(host); for (InetAddress address : addressList) { //输出该网站的所有ip地址 //其功能和nslookup www.xxx.com功能相似 System.out.println("\t" + address.getHostName() + "/" + address.getHostAddress()); } } catch (UnknownHostException e) { System.out.println("\tUnable to find address for " + host); } } }
请把上述代码保存为.java文件,使用javac编译后(如:javac aa.java),在使用java aa运行,请在java aa后面添加想要查看ip的网址(如:java aa www.baidu.com)