java 检测 端口,java检测端口

场景：java检测端口号是不是配占用

java检测端口号是否配占用

java检测端口号是否被占用的工具类：

package com.frank.util;

import java.io.IOException;

import java.net.InetAddress;

import java.net.Socket;

import java.net.UnknownHostException;

public class NetUtil {

/***

* true:already in using false:not using

* @param port

*/

public static boolean isLoclePortUsing(int port){

boolean flag = true;

try {

flag = isPortUsing("127.0.0.1", port);

} catch (Exception e) {

}

return flag;

}

/***

* true:already in using false:not using

* @param host

* @param port

* @throws UnknownHostException

*/

public static boolean isPortUsing(String host,int port) throws UnknownHostException{

boolean flag = false;

InetAddress theAddress = InetAddress.getByName(host);

try {

Socket socket = new Socket(theAddress,port);

flag = true;

} catch (IOException e) {

}

return flag;

}

}