Java examples for Network:Network Address
Replies the IPv4 loopback address.
/*/* w ww.ja va 2s. com*/ * $Id$ * * Janus platform is an open-source multiagent platform. * More details on http://www.janusproject.io * * Copyright (C) 2014 Sebastian RODRIGUEZ, Nicolas GAUD, St?phane GALLAND. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ //package com.java2s; import java.net.Inet4Address; import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; public class Main { /** * Replies the IPv4 loopback address. * * @return the IPv4 loopback address or <code>null</code> if * none. */ public static InetAddress getLoopbackAddress() { try { Enumeration<NetworkInterface> interfaces = NetworkInterface .getNetworkInterfaces(); if (interfaces != null) { NetworkInterface inter; InetAddress adr; Enumeration<InetAddress> addrs; while (interfaces.hasMoreElements()) { inter = interfaces.nextElement(); addrs = inter.getInetAddresses(); if (addrs != null) { while (addrs.hasMoreElements()) { adr = addrs.nextElement(); if (adr != null && adr.isLoopbackAddress() && (adr instanceof Inet4Address)) { return adr; } } } } } } catch (SocketException e) { // } return null; } }