Swing 自動鎖定 鎖屏功能

灬猜想灬 11年前發布 | 4K 次閱讀 SQL Server 下載 二維

.在網上搜集的一些關于Swing鎖屏的Java代碼.
.記錄備用.
.

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Toolkit;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
import java.awt.Dimension;
import java.awt.Color;
import net.miginfocom.swing.MigLayout;
import java.awt.Font;
import javax.swing.border.EtchedBorder;
import com.gohighsoft.db.DBSet;
import com.pos.LoginDialog;
import com.pos.dao.WorkersDao;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;


public class LockFrame extends JDialog {
 BorderLayout borderLayout1 = new BorderLayout();
 JButton jButton2 = new JButton();
 boolean isOK = true;
 JLabel jlableInfo = null;
 private boolean canRunCount = true;
 private JPasswordField passwordField;
 private JLabel label_3;
public static void main(String[] args){
 LockFrame lock = new LockFrame(null, "系統鎖屏", true);
 lock.setVisible(true);
}
 public LockFrame(JFrame jframe, String str, boolean bool) {
  super(jframe, str, true);
  setSize(300, 130);
//這個方法尤為重要，只要屏蔽了右上角的關閉按鈕
  setUndecorated(true);
//設置總是將dialog顯示在屏幕的最前面
  setAlwaysOnTop(true);
  setLocation(
    (Toolkit.getDefaultToolkit().getScreenSize().width - getWidth()) / 2,
    (Toolkit.getDefaultToolkit().getScreenSize().height - getHeight()) / 2);
  setPreferredSize(new Dimension(200, 130));
  getContentPane().setLayout(new BorderLayout(0, 0));
  JPanel rootPanel = new JPanel();
  rootPanel.setBorder(new EtchedBorder(EtchedBorder.LOWERED, new Color(0,
    255, 255), null));
  getContentPane().add(rootPanel, BorderLayout.CENTER);
  rootPanel.setLayout(new BorderLayout(0, 0));
  JPanel panel = new JPanel();
  panel.setPreferredSize(new Dimension(10, 60));
  rootPanel.add(panel, BorderLayout.NORTH);
  panel.setLayout(new MigLayout("", "[][][][]", "[][]"));
  JLabel label = new JLabel(
    "\u7CFB\u7EDF\u8FD0\u884C\u6B63\u5E38\uFF0C\u4F46\u5DF2\u9501\u5B9A\u3002");
  label.setFont(new Font("宋體", Font.PLAIN, 14));
  panel.add(label, "cell 1 0");
  JLabel label_1 = new JLabel(
    "        請您輸入登錄的密碼解鎖! ");
  label_1.setFont(new Font("宋體", Font.PLAIN, 14));
  panel.add(label_1, "cell 1 1");
  JPanel panel_1 = new JPanel();
  panel_1.setPreferredSize(new Dimension(10, 5));
  rootPanel.add(panel_1, BorderLayout.CENTER);
  panel_1.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 5));
  JSeparator separator = new JSeparator();
  separator.setForeground(new Color(0, 255, 255));
  separator.setPreferredSize(new Dimension(280, 2));
  panel_1.add(separator);
  JPanel panel_2 = new JPanel();
  panel_2.setPreferredSize(new Dimension(10, 60));
  rootPanel.add(panel_2, BorderLayout.SOUTH);
  panel_2.setLayout(null);
  JLabel label_2 = new JLabel("\u5BC6\u7801\uFF1A");
  label_2.setBounds(26, 10, 36, 15);
  panel_2.add(label_2);
  passwordField = new JPasswordField();
  passwordField.setBounds(66, 7, 210, 21);
  passwordField.addKeyListener(new KeyAdapter() {
   @Override
   public void keyPressed(KeyEvent event) {
    System.out.println(event.getKeyCode());
    if (event.getKeyCode() == 10) {
     String pw = passwordField.getText();
     //獲取登錄的用戶密碼
     if (pw.equals("123456")) {
      dispose();
     } else {
      label_3.setText("對不起，請您輸入正確的密碼！");
      passwordField.setText("");
      return;
     }
    }
   }
  });
  passwordField.setPreferredSize(new Dimension(210, 21));
  panel_2.add(passwordField);
  label_3 = new JLabel("");
  label_3.setBackground(Color.ORANGE);
  label_3.setBounds(66, 35, 210, 15);
  panel_2.add(label_3);
 }
}</pre>.

.

.


public class Demo6 {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Test");
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        Listener listener = new Listener();
        Toolkit.getDefaultToolkit().addAWTEventListener(listener,
                AWTEvent.MOUSE_EVENT_MASK);
        Toolkit.getDefaultToolkit().addAWTEventListener(listener,
                AWTEvent.FOCUS_EVENT_MASK);
        Toolkit.getDefaultToolkit().addAWTEventListener(listener,
                AWTEvent.KEY_EVENT_MASK);
        frame.setSize(new Dimension(500, 500));
        frame.setVisible(true);
    }
    static class Listener implements AWTEventListener {
        public void eventDispatched(AWTEvent event) {
            System.out.println("Handle Event: " + event.getClass());
        }
    }
}
.

.

https://code.google.com/p/sprbus3/source/browse/?repo=sprbus-hdwangyuan


package com.sprbus.swing.hdwangyuan.panel.lockscreen;


import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;


import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;


/**


    

  • @author jnzhangyq
    • 

  • 鎖屏功能模塊
*/
public class LockScreenPanel extends JPanel {
    

    private JFrame mainFrame;
 private JPasswordField inputField;
 private JLabel inputLabel;
 private JButton subButton;
 private JLabel msgLabel;
 private JButton setHookBtn;
    

    public LockScreenPanel(JFrame mainFrame) {
    


     this.mainFrame = mainFrame;
 inputField = new JPasswordField(20);
 inputLabel = new JLabel("請輸入密碼");
 subButton = new JButton("解除鎖定 提交 ( 測試階段 密碼為 1 )  ");
 setHookBtn = new JButton("鎖住屏幕");
 msgLabel = new JLabel();
 init();


    

    }
    

    private void init() {
    


     this.setLayout(new FlowLayout());
 this.add(setHookBtn);
 this.add(inputField);
 this.add(inputLabel);
 this.add(subButton);
 this.add(msgLabel);
 addEventHandle();
     // 啟動后，立即將程序鎖定
 setKeyboardHook();


    

    }
    

    /**
    

      

    • 添加面板中的各個組件的事件處理
*/
private void addEventHandle() {
      

      setHookBtn.addActionListener(new ActionListener() {
      


       public void actionPerformed(ActionEvent arg0) {
                     inputField.setText("");
     setKeyboardHook();
 }

      

      });
      

      subButton.addActionListener(new ActionListener() {
      


       public void actionPerformed(ActionEvent event) {
     String pwd = inputField.getText();
     if ("1".equals(pwd)) {
         unsetKeyboardHook();
         msgLabel.setText("");
     inputField.setText("");
         LockScreenPanel.this.setScreenToNormal();
     } else {
         msgLabel.setText("對不起，密碼錯誤");
         msgLabel.setForeground(Color.red);
         inputField.setText(""); 
     }
 }

      

      });
}
      

      private void setKeyboardHook() {
      

      setHookBtn.setEnabled(false);
 subButton.setEnabled(true);
 LockScreenUtil.setKeyboardHook();
 this.setScreenToLock();
      

      }
      

      private void unsetKeyboardHook() {
 setHookBtn.setEnabled(true);
 subButton.setEnabled(false);
 LockScreenUtil.unsetKeyboardHook();
 this.setScreenToNormal();
      

      }
      

      private void setScreenToLock() {
      


       // 想重新設這大小和 屬性，必須先調用 dispose 方法

      

      mainFrame.dispose();
 // 設置沒有關閉按鈕
 mainFrame.setUndecorated(true);
 // 設置總在最前端
 mainFrame.setAlwaysOnTop(true);
 // 重新顯示
 mainFrame.setVisible(true);
}
      

      private void setScreenToNormal() {
 // 想重新設這大小和 屬性，必須先調用 dispose 方法
 mainFrame.dispose();
 // 設置沒有關閉按鈕失效
 mainFrame.setUndecorated(false);
 // 設置總在最前端失效
 mainFrame.setAlwaysOnTop(false);
 // 重新顯示
 mainFrame.setVisible(true);
}
      

      private void showByFrame() {
      

      mainFrame.setSize(
      


           (int) Toolkit.getDefaultToolkit().getScreenSize().getWidth(), 
     (int) Toolkit.getDefaultToolkit().getScreenSize()
     .getHeight());
     mainFrame.setLayout(new BorderLayout());
     mainFrame.add(this,BorderLayout.CENTER);

      

      mainFrame.setLocation(0, 0);
 mainFrame.setVisible(true);
 mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      

      }
      

      public static void main(String[] args) {
 JFrame frame = new JFrame();
 new LockScreenPanel(frame).showByFrame();
}
}</pre>.
      
.
      

      package show;
      

      • 

    

    • 



import java.awt.;

import java.awt.image.ColorModel;

import java.awt.event.;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;


import javax.swing.*;

import javax.swing.border.Border;


import com.sun.java.swing.plaf.windows.resources.windows;


public class ShowMian extends JFrame {



JFrame lockjf;// 鎖屏界面   
boolean isexit = false;   
JPanel lockjp = new JPanel();;   
JLabel jl_username;   
JLabel jl_password;   
JButton jb_ensure;// 確定按鈕   
JButton jb_result;// 撤消按鈕   
JTextField jtf_username;// 用戶名   
JPasswordField jtf_password;// 用戶密碼   
// 用來得到屏幕的分辨率   
Toolkit toolkit;   
// 用來接受屏幕返回的分辨率   
int xscreen;// 屏幕的x坐標   
int yscreen;// 屏幕的y坐標   
// 定義線程讓窗體每秒獲得一次焦點   
Thread thread;   

public ShowMian() {   
    // TODO Auto-generated constructor stu   
    // 初始化界面   
    lockjp = new driver();   
    lockjf = this;   
    jl_username = new JLabel("用戶名：");   
    jl_password = new JLabel("密  碼：");   
    jtf_username = new JTextField();   
    jtf_password = new JPasswordField();   
    jb_ensure = new JButton("確定");   
    jb_result = new JButton("取消");   
    // 得到當前的分辨率   
    toolkit = this.getToolkit();   
    final Dimension dimension = toolkit.getScreenSize();   
    xscreen = dimension.width;   
    yscreen = dimension.height;   
    // System.out.println(xscreen + ":" + yscreen);   
    // 設置主窗體的大小   

    // 把各個組件注冊到jframe   
    add(lockjp);   
    lockjp.setLayout(null);   
    lockjp.add(jl_username);   
    lockjp.add(jl_password);   
    lockjp.add(jtf_username);   
    lockjp.add(jtf_password);   
    lockjp.add(jb_ensure);   
    lockjp.add(jb_result);   
    // 設置各個組件的位置   
    this.setBounds(0, 0, 1280, 800);   
    // lable的設置   
    jl_username.setBounds(xscreen - 270, yscreen - 150, 60, 20);   
    jl_password.setBounds(jl_username.getX(), jl_username.getY() + 60, 60,   
            20);   
    // textare的設置   
    jtf_username.setBounds(jl_username.getX() + 60, jl_username.getY(),   
            140, 20);   
    jtf_username.setBorder(null);   
    jtf_password.setBounds(jl_password.getX() + 60, jl_password.getY(),   
            140, 20);   
    jtf_password.setBorder(null);   
    // button的設置   
    jb_ensure.setBounds(jl_username.getX(), jl_username.getY() + 110, 60,   
            30);   
    jb_result.setBounds(jb_ensure.getX() + 140, jb_ensure.getY(), 60, 30);   
    // 設置按鈕事件   
    jb_ensure.addActionListener(new ActionListener() {   

        public void actionPerformed(ActionEvent arg0) {   
            // System.out.println(jtf_username.getText().equals("wayking")+":"+jtf_password.getText().equals("2925138"));   
            // TODO Auto-generated method stub   
            System.out.println(jtf_password.getPassword());   
            if (jtf_username.getText().equalsIgnoreCase("wayking")   
                    && jtf_password.getText().equalsIgnoreCase("2925138")) {   
                // System.out.println("11111111111111111111111111");   
                System.exit(1);   
            } else {   
                jtf_username.setText("");   
                jtf_password.setText("");   
            }   
        }   

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

        public void actionPerformed(ActionEvent arg0) {   
            // TODO Auto-generated method stub   
            jtf_username.setText("");   
            jtf_password.setText("");   
        }   
    });   
    // 設置焦點   
    thread = new Thread(new Runnable() {   

        public void run() {   
            while (true) {   
                toFront();   
                try {   
                    thread.sleep(100);   
                } catch (InterruptedException e) {   
                    // TODO Auto-generated catch block   
                    e.printStackTrace();   
                }   
            }   
        }   
    });   
    // 去掉工具欄   
    setUndecorated(true);   

    // 添加窗口監聽   
    this.addWindowListener(new WindowListener() {   

        public void windowActivated(WindowEvent arg0) {   
            // TODO Auto-generated method stub   

        }   

        public void windowClosed(WindowEvent arg0) {   
            // TODO Auto-generated method stub   

        }   

        public void windowClosing(WindowEvent arg0) {   
            // DO_NOTHING_ON_CLOSE（在 WindowConstants 中定義）：不執行任何操作；要求程序在已注冊的   
            // WindowListener 對象的 windowClosing 方法中處理該操作。   
            // HIDE_ON_CLOSE（在 WindowConstants 中定義）：調用任意已注冊的 WindowListener   
            // 對象后自動隱藏該窗體。   
            // DISPOSE_ON_CLOSE（在 WindowConstants 中定義）：調用任意已注冊   
            // WindowListener 的對象后自動隱藏并釋放該窗體。   
            // EXIT_ON_CLOSE（在 JFrame 中定義）：使用 System exit   
            // 方法退出應用程序。僅在應用程序中使用。   
            // System.out.println("2222222222222");   
            setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);// 不執行任何操作；要求程序在已注冊的   
        }   

        public void windowDeactivated(WindowEvent arg0) {   
            // TODO Auto-generated method stub   

        }   

        public void windowDeiconified(WindowEvent arg0) {   
            // TODO Auto-generated method stub   

        }   

        public void windowIconified(WindowEvent arg0) {   
            // TODO Auto-generated method stub   
        }   

        public void windowOpened(WindowEvent arg0) {   
            // TODO Auto-generated method stub   

        }   
    });   
    try {   
         //建立FileWriter對象，并實例化fw   
          FileWriter fw = new FileWriter("mymusic.txt");   
          //將字符串寫入文件   
          fw.write("mymusic");   
          fw.close();   
    } catch (Exception e) {   
        // TODO Auto-generated catch block   
        e.printStackTrace();   
    }   
    //添加音樂   
    //讀取用戶配置的音樂信息   
    try {   
        FileReader reader=new FileReader("mymusic.txt");//實例化讀入對象   
        BufferedReader readers=new BufferedReader(reader);   
        String musicsrc= readers.readLine();//得到音樂路徑   
        Runtime.getRuntime().exec("cmd /c e://"+musicsrc+".mp3");//調用cmd運行命令   
        readers.close();//關閉對象   
        reader.close();   
    } catch (IOException e) {   
        // TODO Auto-generated catch block   
        System.out.println("沒有找到指定音樂");   
    }   
    // 開始獲取焦點   
    thread.start();   
    setVisible(true);   
}   

// class driwer extends JPanel {   
// protected void paintComponents(Graphics g) {   
//             
// }   
// }   
public static void main(String[] args) {   
    new ShowMian();   
}   

// 畫出面板上的圖片   
// 如果要畫圖，必須用一個類繼承panel 然后重寫其paintcomponent方法   
class driver extends JPanel {   
    @Override   
    protected void paintComponent(Graphics g) {   
        g.setColor(null);   
        // g.drawImage(new ImageIcon("2.jpg").getImage(), 0, 0, this   
        // .getWidth(), this.getHeight(), this);   
        g.drawImage(new ImageIcon("./3.jpg").getImage(), 0, 0, this   
                .getWidth(), this.getHeight(), this);   
        g.drawRect(960, 600, 320, 200);   
        g.drawRect(960, 600, 318, 198);   

        // super.paintComponent(arg0);   
    }   
}   




}  </pre>
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