Here you can find the source of isHostReachable(String host, int timeout)
Parameter | Description |
---|---|
host | the host |
timeout | the timeout in milliseconds used in the network reachability test |
public static boolean isHostReachable(String host, int timeout)
//package com.java2s; /******************************************************************************* * Copyright (c) 2010-2012 by Min Cai (min.cai.china@gmail.com). * * This file is part of the PickaPack library. * * PickaPack is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version.// w w w .j a v a2s .c o m * * PickaPack 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with PickaPack. If not, see <http://www.gnu.org/licenses/>. ******************************************************************************/ import java.io.IOException; import java.net.InetAddress; public class Main { /** * Default timeout in milliseconds used in the network reachability test. */ public static final int DEFAULT_TIMEOUT = 400; /** * Get a value indicating whether the specified host is reachable using the specified timeout. * * @param host the host * @param timeout the timeout in milliseconds used in the network reachability test * @return a value indicating whether the specified host is reachable using the specified timeout */ public static boolean isHostReachable(String host, int timeout) { try { return InetAddress.getByName(host).isReachable(timeout); } catch (IOException e) { return false; } } /** * Get a value indicating whether the specified host is reachable using the default timeout. * * @param host the host * @return a value indicating whether the specified host is reachable using the default timeout */ public static boolean isHostReachable(String host) { return isHostReachable(host, DEFAULT_TIMEOUT); } }