基于java的多线程端口扫描软件

import java.net.*; import java.io.*; //import java.util.*; 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(ThreadScan.maxThread.getText())) { ThreadScan.status.setText("扫描状态:正在扫描 "+i+" 端口"); try { theTCPsocket=new Socket(hostAddress,i); theTCPsocket.close(); ThreadScan.Result.append(" "+i); switch(i) { case 21: ThreadScan.Result.append("(FTP)"); break; case 23: ThreadScan.Result.append("(TELNET)"); break; case 25: ThreadScan.Result.append("(SMTP)"); break; case 80: ThreadScan.Result.append("(HTTP)"); break; case 110: ThreadScan.Result.append("(POP)"); break; case 139: ThreadScan.Result.append("(netBIOS)"); break; } ThreadScan.Result.append(","); } catch (IOException e) {} } if (i==MAX_port) { ThreadScan.Result.append("\n"+"扫描完成..."); ThreadScan.status.setText("扫描状态:完成!"); } } } class CancleAction implements ActionListener { public void actionPerformed (ActionEvent e) { System.exit(1); } } class SubmitAction implements ActionListener { public void actionPerformed (ActionEvent a) { int minPort; int maxPort; int maxThread; try { minPort=Integer.parseInt(ThreadScan.minPort.getText()); maxPort=Integer.parseInt(ThreadScan.maxPort.getText()); maxThread=Integer.parseInt(ThreadScan.maxThread.getText()); } catch(NumberFormatException e) { ThreadScan.DLGINFO.setText("错误的端口号或线程数!端口号和线程数必须为整数!"); ThreadScan.DLGError.setVisible(true); ThreadScan.status.setText("扫描状态:未开始"); return; } try { TCPThread.hostAddress=InetAddress.getByName(ThreadScan.hostname.getText()); } catch(UnknownHostException e) { ThreadScan.DLGINFO.setText(" 错误的IP地址/域名或地址不可达! "); ThreadScan.DLGError.setVisible(true); ThreadScan.status.setText("扫描状态:未开始"); return; } if(minPort<0 || minPort>65535 || minPort>maxPort) { ThreadScan.DLGINFO.setText("最小端口必须是0-65535并且小于最大端口的整数!"); ThreadScan.DLGError.setVisible(true); return; } else TCPThread.MIN_port=minPort; if(maxPort<0 || maxPort>65535 || maxPort<minPort) { ThreadScan.DLGINFO.setText("最大端口必须是0-65535并且大于最小端口的整数!"); ThreadScan.DLGError.setVisible(true); ThreadScan.status.setText("扫描状态:未开始"); return; } else TCPThread.MAX_port=maxPort; if(maxThread<1 || maxThread>200) { ThreadScan.DLGINFO.setText(" 线程数为1-200的整数! "); ThreadScan.DLGError.setVisible(true); ThreadScan.status.setText("扫描状态:未开始"); return; } ThreadScan.Result.setText(""); ThreadScan.Result.append("正在扫描 "+ThreadScan.hostname.getText()+" 线程数 "+ThreadScan.maxThread.getText()+"\n"); ThreadScan.Result.append("开放端口: "); for(int i=0;i<maxThread;i++) { new TCPThread("T" + i,i).start(); } } } class OKAction implements ActionListener { public void actionPerformed (ActionEvent e) { ThreadScan.DLGError.dispose(); } } public class ThreadScan { public static JFrame main=new JFrame("基于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("localhost",8); 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,"错误!"); public static Label DLGINFO=new Label(""); public static Label status=new Label("扫描状态:未开始"); public static void main(String[] args) { main.setSize(500,220); main.setLocation(300,300); main.setResizable(false); DLGError.setSize(300,100); DLGError.setLocation(400,400); JPanel mainPanel = new JPanel(); Label H=new Label("ip或域名:"); 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: "); 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("取消"); 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 SubmitAction()); Cancel.addActionListener(new CancleAction()); OK.addActionListener(new OKAction()); } }