java检测端口是否被占用，java检测端口占用,Java可以通过Sock

java检测端口是否被占用，java检测端口占用,Java可以通过Sock

Java可以通过Socket类来检测端口是否被占用：

import java.net.*;import java.io.*;public class Main {   public static void main(String[] args) {      Socket Skt;      String host = "localhost";      if (args.length gt; 0) {         host = args[0];      }      for (int i = 0; i < 1024; i++) {         try {            System.out.println("Looking for "+ i);            Skt = new Socket(host, i);            System.out.println("There is a server on port "            + i + " of " + host);         }         catch (UnknownHostException e) {            System.out.println("Exception occured"+ e);            break;         }         catch (IOException e) {         }      }   }}