获取IP地址

mac2022-06-30 25

参考CORE JAVA。

在JAVA中，InetAddress类用于操作与IP地址相关的内容，常用方法如下：

java.net.InetAddress 1.0 • static InetAddress getByName(String host) • static InetAddress[] getAllByName(String host) constructs an InetAddress, or an array of all Internetaddresses, for the given host name. • static InetAddress getLocalHost() constructs an InetAddress for the local host. • byte[] getAddress() returns an array of bytes that contains thenumerical address. • String getHostAddress() returns a string with decimal numbers,separated by periods, for example "132.163.4.102". • String getHostName() returns the host name.

package com.lujinhong.corejava; import java.net.InetAddress; import java.net.UnknownHostException; public class InetAddressTest { public static void main(String[] args) { try { // Get the first argument as the hostname. if (args.length > 0) { InetAddress[] inetAddresses = InetAddress.getAllByName(args[0]); for(InetAddress ia : inetAddresses){ System.out.println(ia); } }else{ //if No argument, get the localhost ip address. InetAddress localHostAddress = InetAddress.getLocalHost(); System.out.println(localHostAddress); System.out.println(localHostAddress); } } catch (UnknownHostException e) { e.printStackTrace(); } } }

转载于:https://www.cnblogs.com/jinhong-lu/p/4559522.html