自己写的JAVA锁屏源码

package com.hua.app; import javax.swing.*; import java.awt.AWTException; import java.awt.BorderLayout; import java.awt.FlowLayout; import java.awt.Frame; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.Point; import java.awt.Robot; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.event.WindowStateListener; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.util.*; import java.util.Timer; public class LockView extends JDialog implements ActionListener,MouseListener{ JPasswordField jtf; JLabel jlTitle; JPanel jp1,jp2; JButton jbtn1,jbtn2,jbtn3; String pwd=""; boolean flag=false; //指示鼠标是否移出 Robot rb; String osPath; private boolean ctrl_Pressed=false; private boolean alt_Pressed=false; private boolean del_Pressed=false; BackImage bi=null; public LockView(){ jbtn3=new JButton("关闭"); jbtn3.setEnabled(true); jbtn3.addActionListener(this); this.setUndecorated(true); osPath=System.getenv("SystemRoot"); osPath=osPath+"\\system32\\"; this.addMouseListener(this); jbtn1=new JButton("更改密码"); this.setAlwaysOnTop(false); jbtn1.addActionListener(this); jbtn2=new JButton("加锁"); jbtn2.addActionListener(this); jp2=new JPanel(new FlowLayout(FlowLayout.CENTER)); jp2.add(jbtn1); jp2.add(jbtn2); jp2.add(jbtn3); jp1=new JPanel(); jtf=new JPasswordField(10); jlTitle=new JLabel("请输入密码:"); jp1.setLayout(new FlowLayout(FlowLayout.CENTER)); jp1.add(jlTitle); jp1.add(jtf); this.setLayout(new BorderLayout()); this.add(jp1,"North"); this.add(jp2,"Center"); this.setTitle("ScreenLock"); int width=Toolkit.getDefaultToolkit().getScreenSize().width; int height=Toolkit.getDefaultToolkit().getScreenSize().height; this.setLocation((width-300)/2,(height-100)/2); this.setSize(300,100); this.setVisible(true); this.setResizable(false); this.jtf.setEditable(false); GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice screen = env.getDefaultScreenDevice(); try { rb=new Robot(screen); } catch (AWTException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public static void main(String[] args){ new LockView(); Timer t; t = new Timer(true); t.schedule( new java.util.TimerTask() { public void run() { closeMgr(); }}, 0, 1000); } public void actionPerformed(ActionEvent e) { if(e.getSource()==jbtn1){ UpdatePwd up=new UpdatePwd(); pwd=up.getPwd(); System.out.println(pwd); jbtn1.setEnabled(false); }else if(e.getSource()==jbtn2&& jbtn2.getText().equals("加锁")){ jbtn3.setEnabled(false); this.jtf.setEditable(true); this.jbtn2.setText("解锁"); bi=new BackImage(); this.setAlwaysOnTop(true); try { Runtime.getRuntime().exec("taskkill /f /im explorer.exe"); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } flag=true; }else if(e.getSource()==jbtn2&& jbtn2.getText().equals("解锁")){ jbtn3.setEnabled(true); char[] r=jtf.getPassword(); String s=""; for(int i=0;i<r.length;i++){ s=s+r[i]; } System.out.println(s); if(s.equals(pwd)){ //解锁成功 flag=false; try { Runtime.getRuntime().exec("cmd /c start explorer.exe"); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } jbtn2.setText("加锁"); bi.dispose(); this.setAlwaysOnTop(false); }else{ //解锁失败 JOptionPane.showMessageDialog(this, "密码错误"); } }else if(e.getSource()==jbtn3){ this.dispose(); } } public void mouseClicked(MouseEvent e) { // TODO Auto-generated method stub } public void mouseEntered(MouseEvent e) { // TODO Auto-generated method stub } public void mouseExited(MouseEvent e) { // TODO Auto-generated method stub if(flag==true) { if(this.getMousePosition()==null) { resetPos(e); } } } public void mousePressed(MouseEvent e) { // TODO Auto-generated method stub } public void mouseReleased(MouseEvent e) { // TODO Auto-generated method stub } private void resetPos(MouseEvent e){ int curX=this.getX()+e.getX(); int curY=this.getY()+e.getY(); int frameLeft = this.getX()+20; int frameRight = this.getX()+this.getWidth()-20; int frameUp = this.getY()+80; int frameDown = this.getY()+this.getHeight()-20; int x = curX; int y = curY; if(curX<frameLeft){ x = frameLeft; rb.mouseMove(x, y); } if(curX>frameRight){ x = frameRight; rb.mouseMove(x, y); } if(curY<frameUp){ y = frameUp; rb.mouseMove(x, y); } if(curY>frameDown){ y = frameDown; rb.mouseMove(x, y); } if(x!=curX || y!=curY) rb.mouseMove(x, y); } private static void closeMgr(){ try { Runtime.getRuntime().exec("taskkill /f /im taskmgr.exe"); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }