java键盘记录器

Posted 2020-12-30 debianroot

Main.java:

import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRootPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.WindowConstants;

class Main {

public static void main(final String[] args) {
// TODO 自动生成的方法存根
final Recorder R = new Recorder();
final Thread thread = new Thread(R);
thread.setDaemon(true);
final BorderLayout BL = new BorderLayout();
final GridLayout GL = new GridLayout();
final JFrame JF = new JFrame("JKeyRecorder Console");
final JButton JB = new JButton("开始记录");
final JButton JB2 = new JButton("停止记录");
final JButton JB3 = new JButton("查看结果");
final JPanel JP = new JPanel();
final JLabel JL = new JLabel("键盘记录文件位置：/var/log/JKeyRecorder.log");
JB2.setEnabled(false);
JF.setLayout(BL);
JP.setLayout(GL);
JP.add(JB);
JP.add(JB2);
JP.add(JB3);
JF.add(JP, BorderLayout.CENTER);
JF.add(JL, BorderLayout.SOUTH);
JF.setUndecorated(true);
JF.setSize(500, 500);
JF.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
JF.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
JF.setLocationRelativeTo(null);
JF.setVisible(true);
JB.addActionListener(new ActionListener() {

    @Override
    public void actionPerformed(final ActionEvent arg0) {
    // TODO 自动生成的方法存根
    JB.setEnabled(false);
    JB2.setEnabled(true);
    JL.setText(JL.getText() + " (运行中)");
    JB3.setEnabled(false);
    JF.getRootPane().setWindowDecorationStyle(JRootPane.NONE);
    thread.start();
    }
});
JB2.addActionListener(new ActionListener() {

    @Override
    public void actionPerformed(final ActionEvent arg0) {
    // TODO 自动生成的方法存根
    JB2.setEnabled(false);
    JB3.setEnabled(true);
    JB.setEnabled(true);
    JF.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
    thread.interrupt();
    JL.setText("键盘记录文件位置：/var/log/JKeyRecorder.log");
    }

});
JB3.addActionListener(new ActionListener() {

    @Override
    public void actionPerformed(final ActionEvent arg0) {
    // TODO 自动生成的方法存根
    final JFrame JF2 = new JFrame("JKeyRecorder - 记录结果");
    final JScrollPane JSP = new JScrollPane();
    final JTextArea JTA = new JTextArea();
    JSP.setViewportView(JTA);
    JF2.setSize(725, 725);
    JF2.setLocationByPlatform(true);
    JF2.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);
    JF2.setUndecorated(true);
    JF2.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
    JF2.add(JSP);
    JTA.setEditable(false);
    try {
        final FileReader FR = new FileReader("/var/log/JKeyRecorder.log");
        final BufferedReader BR = new BufferedReader(FR);
        String s;
        while ((s = BR.readLine()) != null) {
        JTA.append(s);
        }
        FR.close();
        BR.close();
    } catch (final IOException e) {
        // TODO 自动生成的 catch 块
        e.printStackTrace();
    }
    JF2.setVisible(true);
    }

});
}

}
Recorder.java:

import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

class Recorder implements Runnable {

@Override
public void run() {
// TODO 自动生成的方法存根
final File F = new File("/var/log/JKeyRecorder.log");
if (F.exists() == false) {
    try {
    Runtime.getRuntime().exec("touch " + F.getAbsolutePath());
    } catch (final IOException e) {
    // TODO 自动生成的 catch 块
    e.printStackTrace();
    }
}
new KeyListener() {

    @Override
    public void keyPressed(final KeyEvent arg0) {
    // TODO 自动生成的方法存根
    final int keycode = arg0.getKeyCode();
    final String keytext = KeyEvent.getKeyText(keycode);
    try {
        final FileWriter FW = new FileWriter(F);
        FW.append(keytext);
    } catch (final IOException e) {
        // TODO 自动生成的 catch 块
        e.printStackTrace();
    }

    }

    @Override
    public void keyReleased(final KeyEvent arg0) {
    // TODO 自动生成的方法存根

    }

    @Override
    public void keyTyped(final KeyEvent arg0) {
    // TODO 自动生成的方法存根

    }

};
}

}

我是分成了两个*.java文件来写的。
但是它好像并不能记录来自键盘的输入。
我查了一下,貌似KeyListener只适用于GUI？
如果真是这样的话，我要做个在后台运行的即时键盘记录器，该怎么办呢？
如果只用KeyEvent的话，则记录的全都是数字键码，而不是键盘按键上面标的字符。
[email protected]:~# cat /var/log/JKeyRecorder.log
[email protected]:~#
JKeyRecorder.log是空的。