Java

本类阅读TOP10

·使用MyEclipse开发Struts框架的Hello World!(录像1)
·hibernate配置笔记
·AOP编程入门--Java篇
·linux下Tomcat 5.0.20 与 Apache 2 安装/集成/配置
·在win2003下整合了整合Tomcat5.5+ apache_2.0.53+ mod_jk_2.0.47.dll
·构建Linux下IDE环境--Eclipse篇
·Jsp 连接 mySQL、Oracle 数据库备忘(Windows平台)
·ASP、JSP、PHP 三种技术比较
·Tomcat5.5.9的安装配置
·AWT GUI 设计笔记(二)

分类导航
VC语言Delphi
VB语言ASP
PerlJava
Script数据库
其他语言游戏开发
文件格式网站制作
软件工程.NET开发
端口扫描程序java实现

作者:未知 来源:月光软件站 加入时间:2005-5-13 月光软件站

怎么样扫描计算机系统本地和远程的端口,监测其是打开还是关闭的在很多应用程序中都要用到,下面是用java实现的简单的端口扫描程序。

Source Code:


/*
 * Created on 2005-3-22
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */

/**
 * @author whandey    connect to me:
[email protected]
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
import java.io.*;
import java.net.*;
import java.util.*;


public class SocketPort {

 public static void main(String[] args) {
  
  String ip = "159.162.39.27";   
  String hostname = new String();
  
     try{ //get the target ip address and hostname
   InetAddress address = InetAddress.getByName(ip);
   System.out.println(address);
   hostname = address.getHostName();
   System.out.println(hostname);
   }
   catch(UnknownHostException e)
   {
    System.out.println("Could not find "+ ip);
    
    }
  
  
  try
  {   // creat the output file
   PrintWriter fout = new PrintWriter( new FileWriter("PortInf.txt"));
   fout.println("Information Of The Port On the " + hostname +"computer ");
   fout.println();
  
  // do ports scan
  for(int nport = 25;nport < 30;++nport)
  {
   try
  {
   
   Socket s = new Socket(hostname,nport);
   fout.println("The port " + nport + " is open!");
   
   fout.println("Connected to "+ s.getInetAddress() + " on port " + s.getPort() + " from port "+ s.getLocalPort() + " of " + s.getLocalAddress());
   //print the connected socket information
   }
   
   catch(IOException e)
   {
    fout.println("The port " + nport + " is closed!");
    }
   
  }
  fout.close();
  
  }
  catch(IOException e){}
  
 }
}





相关文章

相关软件