Here you can find the source of isBindedPort(String host, int port)
public static boolean isBindedPort(String host, int port)
//package com.java2s; /*/*from ww w .j av a2 s. c o m*/ * * Copyright 2018 FJN Corp. * * 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. * * Author Date Issue * fs1194361820@163.com 2015-01-01 Initial Version * */ import java.net.InetSocketAddress; import java.net.Socket; public class Main { public static boolean isBindedPort(String host, int port) { boolean used = false; Socket socket = new Socket(); try { InetSocketAddress ip = new InetSocketAddress(host, port); socket.connect(ip, 5 * 1000); used = true; } catch (Exception ex) { ex.printStackTrace(); } finally { try { socket.shutdownOutput(); } catch (Exception ex1) { // Ignore it } try { socket.shutdownInput(); } catch (Exception ex1) { // Ignore it } try { socket.close(); } catch (Exception ex1) { // Ignore it } } return used; } }