java实现鼠标和键盘动作后台监听

有的时候需要我们对鼠标和键盘的动作(鼠标的移动,键盘的点击)进行监听,比如按键记录,鼠标坐标记录等。

我们使用JNA来实现以上的操作

 tips:JNA类库使用一个很小的本地类库sub 动态的调用本地代码。程序员只需要使用一个特定的java接口描述一下将要调用的本地代码的方法的结构和一些基本属性。这样就省了为了适配多个平台而大量的配置和编译代码。因为调用的都是JNA提供的公用jar 包中的接口。

首先我们实现监听鼠标的代码如下

package getInfo;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.sun.jna.Structure;
import com.sun.jna.examples.win32.Kernel32;
import com.sun.jna.examples.win32.User32;
import com.sun.jna.examples.win32.User32.HHOOK;
import com.sun.jna.examples.win32.User32.MSG;
import com.sun.jna.examples.win32.W32API.HMODULE;
import com.sun.jna.examples.win32.W32API.LRESULT;
import com.sun.jna.examples.win32.W32API.WPARAM;
import com.sun.jna.examples.win32.User32.HOOKPROC;

public class MouseHook implements Runnable{
	
	public static final int WM_MOUSEMOVE = 512;
	private static HHOOK hhk;
	private static LowLevelMouseProc mouseHook;
	final static User32 lib = User32.INSTANCE;
	private boolean [] on_off=null;

	public MouseHook(boolean [] on_off){
		this.on_off = on_off;
	}

	public interface LowLevelMouseProc extends HOOKPROC {
		LRESULT callback(int nCode, WPARAM wParam, MOUSEHOOKSTRUCT lParam);
	}

	public static class MOUSEHOOKSTRUCT extends Structure {
		public static class ByReference extends MOUSEHOOKSTRUCT implements
		Structure.ByReference {
		};
		public User32.POINT pt;
		public int wHitTestCode;
		public User32.ULONG_PTR dwExtraInfo;
	}

	public void run() {
		HMODULE hMod = Kernel32.INSTANCE.GetModuleHandle(null);
		mouseHook = new LowLevelMouseProc() {
			public LRESULT callback(int nCode, WPARAM wParam,
					MOUSEHOOKSTRUCT info) {
				SimpleDateFormat df1 = new SimpleDateFormat("yyyy-MM-dd");
				SimpleDateFormat df2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
				String fileName=df1.format(new Date());
				String time=df2.format(new Date());
				BufferedWriter bw1=null;
				BufferedWriter bw2=null;
				try {
					bw1=new BufferedWriter(new FileWriter(new File(".//log//"+fileName+"_Mouse.txt"),true));
					bw2=new BufferedWriter(new FileWriter(new File(".//log//"+fileName+"_Common.txt"),true));
				} catch (IOException e) {
					e.printStackTrace();
				}
				if (on_off[0] == false) {
					System.exit(0);
				}
				if (nCode >= 0) {
					switch (wParam.intValue()) {
					case MouseHook.WM_MOUSEMOVE:
						try {
							bw1.write(time+"  ####  "+"x=" + info.pt.x
									+ " y=" + info.pt.y+"\r\n");
							bw2.write(time+"  ####  "+"x=" + info.pt.x
									+ " y=" + info.pt.y+"\r\n");
							bw1.flush();
							bw2.flush();
						} catch (IOException e) {
							e.printStackTrace();
						}
					}
				}
				return lib
				.CallNextHookEx(hhk, nCode, wParam, info.getPointer());
			}
		};
		hhk = lib.SetWindowsHookEx(User32.WH_MOUSE_LL, mouseHook, hMod, 0);
		int result;
		MSG msg = new MSG();
		while ((result = lib.GetMessage(msg, null, 0, 0)) != 0) {
			if (result == -1) {
				System.err.println("error in get message");
				break;
			} else {
				System.err.println("got message");
				lib.TranslateMessage(msg);
				lib.DispatchMessage(msg);
			}
		}
		lib.UnhookWindowsHookEx(hhk);
	}
}
能够在鼠标移动的时候输出鼠标的坐标位置

接下来是监听键盘的代码

package getInfo;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.sun.jna.examples.win32.Kernel32;
import com.sun.jna.examples.win32.User32;
import com.sun.jna.examples.win32.User32.HHOOK;
import com.sun.jna.examples.win32.User32.KBDLLHOOKSTRUCT;
import com.sun.jna.examples.win32.User32.LowLevelKeyboardProc;
import com.sun.jna.examples.win32.User32.MSG;
import com.sun.jna.examples.win32.W32API.HMODULE;
import com.sun.jna.examples.win32.W32API.LRESULT;
import com.sun.jna.examples.win32.W32API.WPARAM;


public class KeyboardHook implements Runnable{

	private static HHOOK hhk;
	private static LowLevelKeyboardProc keyboardHook;
	final static User32 lib = User32.INSTANCE;
	private boolean [] on_off=null;

	public KeyboardHook(boolean [] on_off){
		this.on_off = on_off;
	}

	public void run() {

		HMODULE hMod = Kernel32.INSTANCE.GetModuleHandle(null);
		keyboardHook = new LowLevelKeyboardProc() {
			public LRESULT callback(int nCode, WPARAM wParam, KBDLLHOOKSTRUCT info) {
				SimpleDateFormat df1 = new SimpleDateFormat("yyyy-MM-dd");
				SimpleDateFormat df2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
				String fileName=df1.format(new Date());
				String time=df2.format(new Date());
				BufferedWriter bw1=null;
				BufferedWriter bw2=null;
				try {
					bw1=new BufferedWriter(new FileWriter(new File(".//log//"+fileName+"_Keyboard.txt"),true));
					bw2=new BufferedWriter(new FileWriter(new File(".//log//"+fileName+"_Common.txt"),true));
				
				} catch (IOException e) {
					e.printStackTrace();
				}
				if (on_off[0] == false) {
					System.exit(0);
				}
				try {
					bw1.write(time+"  ####  "+info.vkCode+"\r\n");
					bw2.write(time+"  ####  "+info.vkCode+"\r\n");
					bw1.flush();
					bw2.flush();
				} catch (IOException e) {
					e.printStackTrace();
				}
				return lib.CallNextHookEx(hhk, nCode, wParam, info.getPointer());
			}
		};
		hhk = lib.SetWindowsHookEx(User32.WH_KEYBOARD_LL, keyboardHook, hMod, 0);
		int result;
		MSG msg = new MSG();
		while ((result = lib.GetMessage(msg, null, 0, 0)) != 0) {
			if (result == -1) {
				System.err.println("error in get message");
				break;
			} else {
				System.err.println("got message");
				lib.TranslateMessage(msg);
				lib.DispatchMessage(msg);
			}
		}
		lib.UnhookWindowsHookEx(hhk);
	}

}

最后是获取进程信息的代码

package getInfo;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.text.SimpleDateFormat;
import java.util.Date;

public class ProcessInfo implements Runnable{

	private boolean [] on_off=null;

	public ProcessInfo(boolean [] on_off){
		this.on_off = on_off;
	}

	public void run() {
		BufferedReader input = null;
		Process process = null;
		BufferedWriter bw=null;
		SimpleDateFormat df1 = new SimpleDateFormat("yyyy-MM-dd");
		SimpleDateFormat df2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String fileName=null;
		String time=null;
		try {
			while(on_off[0]){
				fileName=df1.format(new Date());
				time=df2.format(new Date());
				bw=new BufferedWriter(new FileWriter(new File(".//log//"+fileName+"_ProcessInfo.txt"),true));
				Thread.sleep(60000);
				process = Runtime.getRuntime().exec("cmd.exe   /c   tasklist");
				input =new BufferedReader(
						new InputStreamReader(process.getInputStream()));
				String line = " ";
				int i=0;
				input.readLine();
				input.readLine();
				input.readLine();
				while ((line = input.readLine()) != null) {
					bw.write(time+"  ####  "+line+"\r\n");
					bw.flush();
					i++;
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally{
			try {
				bw.close();
				input.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

}

开启上述线程的类

package getInfo;

import java.awt.AWTException;  
import java.awt.Image;  
import java.awt.MenuItem;  
import java.awt.PopupMenu;  
import java.awt.SystemTray;  
import java.awt.Toolkit;  
import java.awt.TrayIcon;  
import java.awt.event.ActionEvent;  
import java.awt.event.ActionListener;  

public class Monitor  {  

	public Monitor()  {  
		boolean [] on_off={true};
		new Thread(new ProcessInfo(on_off)).start();
		new Thread(new KeyboardHook(on_off)).start();
		new Thread(new MouseHook(on_off)).start();
		final TrayIcon trayIcon;  

		if (SystemTray.isSupported()) {  

			SystemTray tray = SystemTray.getSystemTray();  
			Image image = Toolkit.getDefaultToolkit().getImage(".//lib//monitor.png");  

			ActionListener exitListener = new ActionListener() {  
				public void actionPerformed(ActionEvent e) {  
					System.out.println("Exiting...");  
					System.exit(0);  
				}
			};  

			PopupMenu popup = new PopupMenu();  
			MenuItem defaultItem = new MenuItem("Exit");  
			defaultItem.addActionListener(exitListener);  
			popup.add(defaultItem);  

			trayIcon = new TrayIcon(image, "monitor", popup);  

			ActionListener actionListener = new ActionListener() {  
				public void actionPerformed(ActionEvent e) {  
					trayIcon.displayMessage("Action Event",   
							"An Action Event Has Been Peformed!",  
							TrayIcon.MessageType.INFO);  
				}  
			};  

			trayIcon.setImageAutoSize(true);  
			trayIcon.addActionListener(actionListener);  

			try {  
				tray.add(trayIcon);  
			} catch (AWTException e1) {  
				e1.printStackTrace();  
			}  

		} 
	}
	
	public static void main(String[] args)  {  
		new Monitor();  
	}  

}  


上面是一个鼠标监听的日志文件

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