scan.java

扫描计算机已经开启的TCP服务,用JAVA语言实现.

import java.net.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class TCPThread extends Thread
{
 public static InetAddress hostAddress;
 public static int MIN_port;
 public static int MAX_port;
 private int threadnum;
 public TCPThread(String name,int threadnum)
 {
  super(name);
  this.threadnum = threadnum;
 }
 public void run()
 {
  int i;
  Socket theTCPsocket;
  for (i = MIN_port+threadnum; i < MAX_port; i += Integer.parseInt(Scan.maxThread.getText()))
  {
   Scan.status.setText("状态：扫描 "+i+" 端口");
   try
   {
    theTCPsocket=new Socket(hostAddress,i);
    theTCPsocket.close();
    Scan.Result.append(" "+i);
    switch(i)
    {
     case 21:
     Scan.Result.append("(FTP)");
     break;
     case 22:
     Scan.Result.append("(SSH)");
     break;
     case 23:
     Scan.Result.append("(TELNET)");
     break;
     case 25:
     Scan.Result.append("(SMTP)");
     break;
     case 80:
     Scan.Result.append("(HTTP)");
     break;
     case 110:
     Scan.Result.append("(POP)");
     break;
     case 139:
     Scan.Result.append("(netBIOS)");
     break;
     case 443:
     Scan.Result.append("(HTTPS)");
     break;
     case 1433:
     Scan.Result.append("(MSSQL)");
     break;
     case 3306:
     Scan.Result.append("(MYSQL)");
     break;
     case 3389:
     Scan.Result.append("(Terminal Services)");
     break;
     case 4000:
     Scan.Result.append("(Tencent QQ)");
     break;
    }
    Scan.Result.append(",");
   }
   catch (IOException e)
   {}
  }
  if (i==MAX_port)
  {
   Scan.Result.append("\n"+"Completed ...");
   Scan.status.setText("状态:Completed!");
  }
 }
}

class Cancle implements ActionListener
{
 public void actionPerformed (ActionEvent e)
 {
  System.exit(1);
 }
}

class Submit implements ActionListener
{
 public void actionPerformed (ActionEvent a)
 {
  int minPort;
  int maxPort;
  int maxThread;
  try
  {
   minPort=Integer.parseInt(Scan.minPort.getText());
   maxPort=Integer.parseInt(Scan.maxPort.getText());
   maxThread=Integer.parseInt(Scan.maxThread.getText());
  }
  catch(NumberFormatException e)
  {
   Scan.DLGINFO.setText("端口号或线程数错误！端口号或线程数必须为整数!");
   Scan.DLGError.setVisible(true);
   Scan.status.setText("状态:No start ");
   return;
  }
  try
  {
   TCPThread.hostAddress=InetAddress.getByName(Scan.hostname.getText());
  }
  catch(UnknownHostException e)
  {
   Scan.DLGINFO.setText("            IP/域名或地址错误!            ");
   Scan.DLGError.setVisible(true);
   Scan.status.setText("状态:No start ");
   return;
  }
  if(minPort<0 || minPort>65535 || minPort>maxPort)
  {
   Scan.DLGINFO.setText("端口界于0-65535 !");
   Scan.DLGError.setVisible(true);
   return;
  }
  else TCPThread.MIN_port=minPort;
  if(maxPort<0 || maxPort>65535 || maxPort<minPort)
  {
   Scan.DLGINFO.setText("端口界于0-65535 !");
   Scan.DLGError.setVisible(true);
   Scan.status.setText("状态:No start");
   return;
  }
  else TCPThread.MAX_port=maxPort;
  if(maxThread<1 || maxThread>300)
  {
   Scan.DLGINFO.setText("                   线程数为1-300的整数!                    ");
   Scan.DLGError.setVisible(true);
   Scan.status.setText("状态:No start");
   return;
  }
  Scan.Result.setText("");
  Scan.Result.append("正在扫描 "+Scan.hostname.getText()+" 线程数 "+Scan.maxThread.getText()+"\n");
  Scan.Result.append("开放端口: ");
  for(int i=0;i<maxThread;i++)
  {
   new TCPThread("T" + i,i).start();
  }
 }
}

class OK implements ActionListener
{
 public void actionPerformed (ActionEvent e)
 {
  Scan.DLGError.dispose();
 }
}

public class Scan
{
 public static JFrame main=new JFrame("JAVA的多线程TCP端口扫描程序 ");
 public static JTextArea Result=new JTextArea("",4,43);
 public static JTextField hostname=new JTextField("127.0.0.1",10);
 public static JTextField minPort=new JTextField("0",4);
 public static JTextField maxPort=new JTextField("1000",4);
 public static JTextField maxThread=new JTextField("100",3);
 public static JDialog DLGError=new JDialog(main,"Wrong!");
 public static Label DLGINFO=new Label("");
 public static Label status=new Label("状态:No start");
 public static void main(String[] args)
 {
  main.setSize(500,220);
  main.setLocation(320,320);
  main.setResizable(false);
  DLGError.setSize(300,100);
  DLGError.setLocation(400,400);
  JPanel mainPanel = new JPanel();
  Label H=new Label("ip-域名:");
  Label P1=new Label("端口范围:");
  Label P2=new Label("-");
  Label TNUM=new Label("线程数:");
  Label RST=new Label("扫描结果:                          Onlyer[EST-VIP]");
  Label con=new Label("                                              ");
  Result.setLineWrap(true);
  Result.setEditable(false);
  JButton OK = new JButton("确定");
  JButton Submit = new JButton("确定");
  JButton Cancel = new JButton("退出");
  Container mPanel = main.getContentPane();
  Container dPanel = DLGError.getContentPane();
  mPanel.setLayout(new FlowLayout(FlowLayout.LEFT));
  dPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
  mPanel.add(H);
  mPanel.add(hostname);
  mPanel.add(P1);
  mPanel.add(minPort);
  mPanel.add(P2);
  mPanel.add(maxPort);
  mPanel.add(TNUM);
  mPanel.add(maxThread);
  mPanel.add(RST);
  mPanel.add(Result);
  mPanel.add(con);
  mPanel.add(Submit);
  mPanel.add(Cancel);
  mPanel.add(status);
   dPanel.add(DLGINFO);
   dPanel.add(OK);
    main.setVisible(true);
    Submit.addActionListener(new Submit());
    Cancel.addActionListener(new Cancle());
    OK.addActionListener(new OK());
   }
}