主机端口可用

/*
时代Java 提 供
*/


//package com.nowjava;

import java.io.IOException;

import java.net.Socket;


public class Main {

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

        String host = "nowjava.com";

        int port = 2;

        System.out.println(isPortAvailable(host, port));

    }


    public static boolean isPortAvailable(String host, int port) {

        Socket socket = null;

        boolean available = false;

        try {

            socket = new Socket(host, port);

            available = true;/*n o w    j a v a  . c o m 提 供*/

        } catch (IOException e) {

            // no-op

        } finally {

            if (socket != null) {

                try {

                    sock