时代Java

Java 检索第一个非

欢马劈雪

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检索正在运行的计算机的第一个非环回IP地址（即，过滤出127.0.0.1地址）。

实例源码：

源代码：

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/**

* Copyright (c) Codice Foundation

* This is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser

* General Public License as published by the Free Software Foundation, either version 3 of the

* License, or any later version.

* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without

* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

* Lesser General Public License for more details. A copy of the GNU Lesser General Public License

* is distributed along with this program and can be found at

* <http://www.gnu.org/licenses/lgpl.html>.

**/

//package com.nowjava;
/**
 * 时 代 J     a    v  a - nowjava.com 提 供 
**/

import java.net.Inet4Address;

import java.net.Inet6Address;

import java.net.InetAddress;

import java.net.NetworkInterface;

import java.net.SocketException;

import java.util.Enumeration;

public class Main {

public static void main(String[] argv) throws Exception {

System.out.println(getFirstNonLoopbackAddress());

}/** 来 自 N o w J a v a . c o m**/

/**

* Retrieves the first non-loopback IP address, (i.e., filters out 127.0.0.1 addresses) for

* machine your are running on.

* @return

* @throws SocketException

public static InetAddress getFirstNonLoopbackAddress()

throws SocketException {

return getFirstNonLoopbackAddress(true, false);

}

/**

* @param preferIpv4

* @param preferIPv6

* @return

* @throws SocketException

public static InetAddress getFirstNonLoopbackAddress(

boolean preferIpv4, boolean preferIPv6) throws SocketException {

Enumeration en = NetworkInterface.getNetworkInterfaces();

while (en.hasMoreElements()) {

NetworkInterface i = (NetworkInterface) en.nextElement();

for (Enumeration en2 = i.getInetAddresses(); en2

.hasMoreElements();) {

InetAddress addr = (InetAddress) en2.nextElement();

if (!addr.isLoopbackAddress()) {

if (addr instanceof Inet4Address) {

if (preferIPv6) {
/**代码未完, 请加载全部代码(NowJava.com).**/

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编辑于 2020-03-26 09:23:272020-03-26 09:23:27

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