邮箱抓取代码

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Image;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class MainFrm extends JFrame implements ActionListener {
    
    private static final long serialVersionUID = 1L;
    static int count=1;
    static int countUrl=1;
    JFrame frame;
    JButton b1;
    JButton b2;
    JTextArea t1;
    JTextField tf;
    JPanel panel;
    JScrollPane jScrollPane1;
    JLabel label;
    JComboBox comb;
    PopupMenu pm;
    List<Thread> t = new ArrayList<Thread>();
    static int m = 0;

    MainFrm into() {
        pm = new PopupMenu();
        MenuItem openItem = new MenuItem("1.打  开");
        MenuItem closeItem = new MenuItem("2.退  出");
        MenuItem aboutItem = new MenuItem("3.关  于");
        openItem.addActionListener(this);
        closeItem.addActionListener(this);
        aboutItem.addActionListener(this);
        pm.add(openItem);
        pm.add(closeItem);
        pm.add(aboutItem);
        String[] petStrings = { "Baidu", "Google", "Yahoo", "Bing", "Sogou" };
        comb = new JComboBox(petStrings);
        java.net.URL imgURL = MainFrm.class.getResource("mail.png");
        ImageIcon imageicon = new ImageIcon(imgURL);
        panel = new JPanel();
        tf = new JTextField(50);
        tf.setText("留下邮箱");
        label = new JLabel("关键字:");
        frame = new JFrame("邮箱抓取(注：抓取深度暂时默认为2)  ");
        frame.setIconImage(imageicon.getImage());
        b1 = new JButton("提取邮箱");
        b1.addActionListener(this);
        b2 = new JButton("停止抓取");
        b2.addActionListener(this);
        t1 = new JTextArea();
        t1.setLineWrap(true);
        jScrollPane1 = new JScrollPane(t1);
        jScrollPane1.setPreferredSize(new Dimension(200, 200));
          this.setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
        frame.addWindowListener(new WindowAdapter() { // 窗口关闭事件
                    public void windowClosing(WindowEvent e) {
                        System.exit(0);
                    };
                    public void windowIconified(WindowEvent e) { // 窗口最小化事件
                        frame.setVisible(false);
                        systemTray();
                    }
                });
        panel.add(label);
        panel.add(tf);
        panel.add(comb);

        panel.add(b1);
        panel.add(b2);
        frame.getContentPane().add(panel, BorderLayout.NORTH);

        frame.getContentPane().add(jScrollPane1, BorderLayout.CENTER);

        frame.setSize(300, 400);

        frame.pack();

        frame.setVisible(true);
        Dimension winSize = Toolkit.getDefaultToolkit().getScreenSize();
        frame.setLocation((winSize.width - frame.getWidth()) / 2,
                (winSize.height - frame.getHeight()) / 2);
        frame.setAlwaysOnTop(true);
        return this;
    }

    public static void main(String[] args) throws ClassNotFoundException,
            InstantiationException, IllegalAccessException,
            UnsupportedLookAndFeelException {
        // TODO Auto-generated method stub
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        new MainFrm().into().systemTray();
        

    }

    @SuppressWarnings({ "unchecked", "deprecation", "static-access" })
    @Override
    public void actionPerformed(ActionEvent e) {

        if ("提取邮箱".equals(e.getActionCommand())) {
            count=1;
            t1.setText("");
            // get("http://dzh.mop.com/whbm/20060109/4/lSgg8I6063c68aS3.shtml");
            String http = "";
            int combo = (comb.getSelectedIndex());
            switch (combo) {
            case 0:
                http = "http://www.baidu.com/s?wd=";
                break;
            case 1:
                http = "http://www.google.com.hk/search?num=50&q=";
                break;
            case 2:
                http = "http://www.yahoo.cn/s?q=";
                break;
            case 3:
                http = "http://cn.bing.com/search?q=";
                break;
            case 4:
                http = "http://www.sogou.com/web?query=";
                break;
            default:
                http = "http://www.baidu.com/s?wd=";
                break;
            }

            final List<Map> list = get(http + tf.getText());
            m = list.size();
            for (int i = 0, n = list.size(); i < n; i++) {
                final Map map = list.get(i);
                Thread tt = new Thread() {
                    public void run() {
                        Iterator<String> iterator = map.values().iterator();
                        while (iterator.hasNext()) {
                            String u=iterator.next();
                            get(u);
                        }
                    }
                };
                t.add(tt);
                tt.start();
            }

        } else if ("终止抓取".equals(e.getActionCommand())) {
            for (int i = 0; i < t.size(); i++) {
                t.get(i).stop();
            }
        } else if ("1.打  开".equals(e.getActionCommand())) {
            frame.setVisible(true);
            frame.setExtendedState(frame.NORMAL);
        } else if ("2.退  出".equals(e.getActionCommand())) {
            System.exit(0);
        }else if ("3.关  于".equals(e.getActionCommand())) {
            JOptionPane.showMessageDialog(null, "本程序仅供初学参考 QQ：三二八二四七六七六");
        }

    }

    @SuppressWarnings("unchecked")
    public List<Map> get(String urlStr) {
        List<Map> list = new ArrayList<Map>();
        try {
            URL url = new URL(urlStr);

            URLConnection rulConnection = url.openConnection();
            HttpURLConnection httpUrlConnection = (HttpURLConnection) rulConnection;
            httpUrlConnection.setRequestProperty("User-Agent",
                    "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    httpUrlConnection.getInputStream()));

            String line = "";
            while ((line = br.readLine()) != null) {
                Map map = pr(line);
                list.add(map);

            }
        } catch (FileNotFoundException e) {
            //e.printStackTrace();
        } catch (IOException e) {
            //e.printStackTrace();
        } finally {
            m--;
            if (m <= 0) {
                // JOptionPane.showMessageDialog(null, "提取结束");
            }
        }

        return list;
    }

    @SuppressWarnings("unchecked")
    public Map pr(String aa) {
        Pattern pattern = Pattern
                .compile("[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\\.[a-zA-Z0-9_-]+)+");
        Pattern pattern2 = Pattern
                .compile("(http|ftp|https):\\/\\/[\\w\\-_]+(\\.[\\w\\-_]+)+([\\w\\-\\.,@?^=%&amp;:/~\\+#]*[\\w\\-\\@?^=%&amp;/~\\+#])?");
        Matcher matcher = pattern.matcher(aa);
        Map<String, String> emailMap = new HashMap<String, String>();

        Matcher matcher2 = pattern2.matcher(aa);
        Map<String, String> httpMap = new HashMap<String, String>();
        while (matcher2.find()) {
            httpMap.put(matcher2.group(), matcher2.group());
        }
        while (matcher.find()) {
            emailMap.put(matcher.group(), matcher.group());
        }
        Iterator<String> iterator = emailMap.values().iterator();
        while (iterator.hasNext()) {
            String str = iterator.next();
            t1.append("第"+(count++)+"个:"+str + "\r\n");
        }
        return httpMap;
    }

    public void systemTray() {
        try {
            if (java.awt.SystemTray.isSupported()) {
                final java.awt.SystemTray st = java.awt.SystemTray
                        .getSystemTray();
                Image image = Toolkit.getDefaultToolkit().getImage(
                        getClass().getResource("email_go.png"));
                final java.awt.TrayIcon ti = new java.awt.TrayIcon(image);
                ti.setToolTip("邮箱抓取");
                ti.setPopupMenu(pm);
                st.add(ti);
            }
        } catch (Exception e) {
        }
    }
    public String toString(){
        new MainFrm().into();
        return null;
    }

}