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很多朋友都想知道java如何獲取本地ip?下面就一起來了解一下吧~
獲取java本地ip一共有兩種方法:1、inetAddress類;2、封裝方法。
1、 inetAddress類
通過InetAddress的實例對象包含以數字形式保存的IP地址,同時還可能包含主機名(如果使用主機名來獲取InetAddress的實例,或者使用數字來構造,並且啟用了反向主機名解析的功能)。InetAddress類提供了將主機名解析為IP地址(或反之)的方法。其生成InetAddress對象的方法。
import java.net.Inet4Address;import java.net.InetAddress;import java.net.UnknownHostException;public class Main { public static void main(String[] args) throws UnknownHostException { //Inet4Address address= (Inet4Address) Inet4Address.getLocalHost(); InetAddress address = InetAddress.getLocalHost(); System.out.println(address);//獲取計算機名稱和ip地址 String hostAddress = address.getHostAddress(); System.out.println(hostAddress);//獲取ip地址 String hostName = address.getHostName(); System.out.println(hostName);//獲取計算機名稱 }}
2、封裝方法。
public static String getLocalIp() { Enumeration<NetworkInterface> netInterfaces = null; try { netInterfaces = NetworkInterface.getNetworkInterfaces(); while (netInterfaces.hasMoreElements()) { NetworkInterface nif = netInterfaces.nextElement(); Enumeration<InetAddress> InetAddress = nif.getInetAddresses(); while (InetAddress.hasMoreElements()) { String ip = InetAddress.nextElement().getHostAddress(); if (ip.startsWith("192.168")) { return ip; } } } } catch (SocketException e) { } return "127.0.0.1"; }