java模拟时间修改器的实现

结合之前所学的sql数据库，本人模仿了window的时间修改机制，制作了一个模拟修改器，本人修改了很久，找不到bug了，如果哪位大牛发现bug，不吝赐教！程序运行图如下：

?实现不算复杂，代码如下：

package Exercise4;

/**
 * 使用说明:必须安装sql数据库，导入driver类，新建一个ctong库，库中新建exercise4的表，表的属性是:hour(int),minute(int),second(int)
 * id(int,auto_increment,primary key);完成上述步骤后，自己开启sql数据库，use ctong，之后便可使用！
 */
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Date;
import javax.swing.Box;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRootPane;
import javax.swing.JTextField;
import javax.swing.border.BevelBorder;

public class Exercise4 extends Mysql{
	//时分秒的框
	private JTextField field1,field2,field3;
	//hour表示当前时间，hour0用来存储时间差，hour1表示你修改后的最终时间，也是用来显示的时间
	private static int hour,minute,second,hour0,minute0,second0,hour1,minute1,second1,copy_hour,copy_minute,copy_second;
	private JLabel Picture;
	private static boolean applyflag = false;
	public Exercise4(){
		final JFrame frame = new JFrame("Exercise4(Time setting)"); 
		//北边面板
		JPanel northPanel = new JPanel();
		Picture = new JLabel();
		northPanel.add(Picture);
		//中间面板
		JPanel centerPanel =createCenterPanel();
		//南边面板
		JPanel southPanel = new JPanel();
		JButton ok = new JButton("OK");
		JButton cancel = new JButton("Cancel");
		JButton apply = new JButton("Apply");
		ok.setMnemonic(KeyEvent.VK_ENTER);
		cancel.setMnemonic(KeyEvent.VK_BACK_SPACE);
		apply.setMnemonic(KeyEvent.VK_F1);
		ok.setPreferredSize(new Dimension(80,30));
		cancel.setPreferredSize(new Dimension(80,30));
		apply.setPreferredSize(new Dimension(80,30));
		ok.setBackground(new Color(0,110,255));
		cancel.setBackground(new Color(0,110,255));
		apply.setBackground(new Color(0,110,255));
		ok.setForeground(Color.WHITE);
		cancel.setForeground(Color.WHITE);
		apply.setForeground(Color.WHITE);
		southPanel.add(ok);
		southPanel.add(cancel);
		southPanel.add(apply);
		//界面属性
		frame.setLayout(new GridLayout(3,1));
		frame.setLocation(500,200);
		frame.setResizable(false);
		frame.setSize(300,300);
		frame.setUndecorated(true);
		frame.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);
		frame.setIconImage(new ImageIcon("321.jpg").getImage());
		frame.add(northPanel);
		frame.add(centerPanel);
		frame.add(southPanel);
		frame.setDefaultCloseOperation(3);
		frame.setVisible(true);
		//监听器
		ok.addActionListener(new ActionListener() {
			
			public void actionPerformed(ActionEvent e) {
				addTable(getHour(), getMinute(), getSecond(),1);
				timeSQL();
				close0();
				System.exit(0);
			}
		});
		cancel.addActionListener(new ActionListener() {
			
			public void actionPerformed(ActionEvent e) {
				if(applyflag){
					addTable(getHour(), getMinute(), getSecond(),1);
				}
				timeSQL();
				close0();
				System.exit(0);
			}
		});
		apply.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				applyflag=true;
				JOptionPane.showMessageDialog(null, "时间已修改");
				
			}
		});
	}
	//中间面板的创建函数
	private JPanel createCenterPanel() {
		JPanel initPanel = new JPanel();
		JButton houradd = new JButton("▲");
		JButton hoursub = new JButton("▼");
		//快捷键，下同
		houradd.setMnemonic(KeyEvent.VK_Q);
		hoursub.setMnemonic(KeyEvent.VK_A);
		//鼠标指针，下同
		houradd.setCursor(new Cursor(12));
		hoursub.setCursor(new Cursor(12));
		//上下按钮面板，下同
		JPanel hourPanel =new JPanel(new GridLayout(2,1));
		houradd.setPreferredSize(new Dimension(40,10));
		//按钮凸起，下同
		houradd.setBorder(new BevelBorder(0));
		hoursub.setBorder(new BevelBorder(0));
		hourPanel.add(houradd);
		hourPanel.add(hoursub);
		
		JButton minuteadd = new JButton("▲");
		JButton minutesub = new JButton("▼");
		minuteadd.setMnemonic(KeyEvent.VK_W);
		minutesub.setMnemonic(KeyEvent.VK_S);
		minuteadd.setCursor(new Cursor(12));
		minutesub.setCursor(new Cursor(12));
		JPanel minutePanel =new JPanel(new GridLayout(2,1));
		minuteadd.setPreferredSize(new Dimension(40,10));
		minuteadd.setBorder(new BevelBorder(0));
		minutesub.setBorder(new BevelBorder(0));
		minutePanel.add(minuteadd);
		minutePanel.add(minutesub);
		
		JButton secondadd = new JButton("▲");
		JButton secondsub = new JButton("▼");
		secondadd.setMnemonic(KeyEvent.VK_E);
		secondsub.setMnemonic(KeyEvent.VK_D);
		secondadd.setCursor(new Cursor(12));
		secondsub.setCursor(new Cursor(12));
		JPanel secondPanel =new JPanel(new GridLayout(2,1));
		secondadd.setPreferredSize(new Dimension(40,10));
		secondadd.setBorder(new BevelBorder(0));
		secondsub.setBorder(new BevelBorder(0));
		secondPanel.add(secondadd);
		secondPanel.add(secondsub);
		
		 field1 = new JTextField(2);
		 field2 = new JTextField(2);
		 field3 = new JTextField(2);
		 //box，用来设置组件的间距
		 Box baseBox = Box.createHorizontalBox();
		 baseBox.add(field1);
		 baseBox.add(hourPanel);
		 baseBox.add(Box.createHorizontalStrut(10));//放置透明box来表示间距
		 baseBox.add(field2);
		 baseBox.add(minutePanel);
		 baseBox.add(Box.createHorizontalStrut(10));
		 baseBox.add(field3);
		 baseBox.add(secondPanel);
		 field1.setFont(new Font(null, Font.BOLD, 18));
		 field2.setFont(new Font(null, Font.BOLD, 18));
		 field3.setFont(new Font(null, Font.BOLD, 18));
		 //线程，用来及时显示时间变化
		 Thread thread = new Thread(new Runnable() {
			public void run() {
				 hour = new Date().getHours();
				 minute = new Date().getMinutes();
				 second = new Date().getSeconds();
				 
				 SelectTables();
				 SelectTables1();
				 SelectTables0();
				 DelData(1);
				 DelData(2);
				 changePic();
				while(true){
					if(copy_hour != getHour()){
						copy_hour = getHour();
						if(copy_hour>60){
							field1.setText("0");
						}else
						 field1.setText(""+getHour());
					}
					
					if(copy_minute != getMinute()){
						copy_minute = getMinute();
						if(copy_minute>60){
							field2.setText("0");
							int m = getHour();
							setHour(++m);
							if(m>=24) setHour(0);
						}
						else
						field2.setText(""+getMinute());
					}
					
					if(copy_second !=  getSecond()){
						copy_second = getSecond();
						field3.setText(""+ getSecond());
					}
					secUp();
					changePic();
					//休眠1秒
					 try {
						Thread.sleep(1000);
					} catch (InterruptedException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
					
				}
			}
		});
		 thread.start();
		 initPanel.add(baseBox);
		 //监听器
		 houradd.addActionListener(new ActionListener() {
				
				public void actionPerformed(ActionEvent e) {
					houUp();
				}
			});
			hoursub.addActionListener(new ActionListener() {
				
				public void actionPerformed(ActionEvent e) {
					houDown();
				}
			});
			minuteadd.addActionListener(new ActionListener() {
				
				public void actionPerformed(ActionEvent e) {
					minUp();
				}
			});
			minutesub.addActionListener(new ActionListener() {
				
				public void actionPerformed(ActionEvent e) {
					minDown();
				}
			});
			secondadd.addActionListener(new ActionListener() {
				
				public void actionPerformed(ActionEvent e) {
					secUp();
				}
			});
			secondsub.addActionListener(new ActionListener() {
				
				public void actionPerformed(ActionEvent e) {
					secDown();
				}
			});
		return initPanel;
	}
	//重写get，set方法
	public void setHour(int hour) {
		field1.setText(""+hour);
	}
	public void setMinute(int minute) {
		field2.setText(""+minute);
	}
	public void setSecond(int second) {
		field3.setText(""+second);
	}
	public int getHour() {
		if(field1.getText().isEmpty())
		setHour(0);
		return Integer.parseInt(field1.getText());
	}
	public int getMinute() {
		if(field2.getText().isEmpty())
			setMinute(0);
		return Integer.parseInt(field2.getText());
	}
	public int getSecond(){
		if(field3.getText().isEmpty())
			setSecond(0);
		return Integer.parseInt(field3.getText());
	}
	//以下6个方法表示相关时间的加减
	public void houUp(){
		int t = getHour();
		setHour(++t);
		if(t>=24) setHour(0);
	}
	public void houDown(){
		if(getHour()!=0){
			int t = getHour();
			setHour(--t);
		}else{
			setHour(23);
		}
	}
	public void minUp(){
		int t = getMinute();
		setMinute(++t);
		if(t>=60) {
			setMinute(0);
			int m = getHour();
			setHour(++m);
			if(m>=24) setHour(0);
		}
	}
	public void minDown(){
		if(getMinute()!=0){
			int t = getMinute();
			setMinute(--t);
		}else{
			setMinute(59);
			if(getHour()!=0){
				int t = getHour();
				setHour(--t);
			}else{
				setHour(23);
			}
		}
	}
	public void secUp(){
		int t = getSecond();
		setSecond(++t);
		if(t>=60){
			setSecond(0);
			int k = getMinute();
			setMinute(++k);
			if(k>=60){
				setMinute(0);
				int m = getHour();
				setHour(++m);
				if(m>=24) setHour(0);
			}
		}
	}
	public void secDown(){
		if(getSecond()!=0){
			int t = getSecond();
			setSecond(--t);
		}else{
			setSecond(59);
			if(getMinute()!=0){
				int t = getMinute();
				setMinute(--t);
			}else{
				setMinute(59);
				if(getHour()!=0){
					int t = getHour();
					setHour(--t);
				}else{
					setHour(23);
				}
			}
		}
	}
	//改变图片
	public void changePic(){
		if(getHour()>=7&&getHour()<=11){
			Picture.setIcon(new ImageIcon("zaoshang.jpg"));
		}
		else if(getHour()>11&&getHour()<=15){
			Picture.setIcon(new ImageIcon("zhengwu.jpg"));
		}
		else if(getHour()>15&&getHour()<=18){
			Picture.setIcon(new ImageIcon("huanghun.jpg"));
		}
		else {
			Picture.setIcon(new ImageIcon("wanshang.jpg"));
		}
	}
	//获取当前时间，并存入数据库
	public void timeSQL(){
		 int hour = new Date().getHours();
		 int minute = new Date().getMinutes();
		 int second = new Date().getSeconds();
		addTable(hour, minute, second, 2);
	}
	//获取时间差
	 public void SelectTables(){  
         
	        try {  
	            // 执行sql语句  
	            Statement statement = con.createStatement();  
	  
	            String sql = "select * from exercise4";  
	            ResultSet rs = statement.executeQuery(sql);  
	            int hour1 = 0;
	            int minute1 = 0;
	            int second1 = 0;
	            int id;  
	            while (rs.next()) {  
	            	hour1 = rs.getInt("hour"); 
	            	minute1 = rs.getInt("minute");  
	            	second1 = rs.getInt("second");  
	                id=rs.getInt("id");  
	                
	                if(id==2){
	                	hour0 = Math.abs(hour - hour1);
	                	minute0 = Math.abs(minute - minute1);
	                	second0 = Math.abs(second - second1);
	                	System.out.println("hour =" + hour0 + "  minute=" + minute0+"  second="+second0+"   id="+id);
	                }
	                
	            }  
	            rs.close();  
	        } catch (Exception e) {  
	            e.printStackTrace();  
	        }  
	          
	    }  
	 //获取显示时间
	 public void SelectTables1(){  
		 
		 try {  
			 // 执行sql语句  
			 Statement statement = con.createStatement();  
			 
			 String sql = "select * from exercise4";  
			 ResultSet rs = statement.executeQuery(sql);  
			 hour1 = 0;
			 minute1 = 0;
			 second1 = 0;
			 int id;  
			 while (rs.next()) {  
				 hour1 = rs.getInt("hour"); 
				 minute1 = rs.getInt("minute");  
				 second1 = rs.getInt("second");  
				 id=rs.getInt("id");  
				 
				 if(id==1){
					 hour1 += hour0;
					 minute1 += minute0;
					 second1 += second0;
					 System.out.println("hour =" + hour1 + "  minute=" + minute1+"  second="+second1+"   id="+id);
					copy_hour = hour1;
					copy_minute = minute1;
					copy_second = second1;
					field1.setText(""+hour1);
					field2.setText(""+minute1);
					field3.setText(""+second1);
				 }
				
			}  
			 rs.close();  
		 }catch (Exception e) {  
			 e.printStackTrace();  
		 }  
	 }  
	 //对用户是否修改过时间进行判断
	 public void SelectTables0(){  
		 
		 try {  
			 // 执行sql语句  
			 Statement statement = con.createStatement();  
			 
			 String sql = "select * from exercise4";  
			 ResultSet rs = statement.executeQuery(sql);  
			 int n = 0;
			while(rs.next()) {  
				n++;
			}  
			if(n<=1){
				copy_hour = hour;
				copy_minute = minute;
				copy_second = second;
				field1.setText(""+hour);
				field2.setText(""+minute);
				field3.setText(""+second);
			}
			 rs.close();  
		 }catch (Exception e) {  
			 e.printStackTrace();  
		 }  
	 }  
	/**
	 * 主函数
	 * @param ctong
	 */
	public static void main(String[] args) {
		new Exercise4();
	}
}

?

package Exercise4;  
import java.sql.Connection;  
import java.sql.DriverManager;  
import java.sql.PreparedStatement;  
import java.sql.ResultSet;  
import java.sql.SQLException;  
import java.sql.Statement;  
/** 
 * 1.增加数据-insert into game(name,type) values(?,?) 
 * public void dd2Table(String name,String type); 
 * public void add2Table(String name,String type,int id); 
 * 2.删除数据-delete from game where id = ? 
 * public void DelData(int id) 
 * 3.查找数据-select * from game 
 * public void SelectTables() 
 * 4.修改数据-update game set name=?,type=? where id=? 
 * public void upData(String name,String type,int id) 
 *  
 *  
 *  
 * @author ctong 
 * 
 */  
public class Mysql {  
    /* 
        数据库加载固定属性 
     */  
    //mySql 中驱动类的名字就是其驱动包中的com.mysql.jdbc.Driver.class 类。  
    String  driver="com.mysql.jdbc.Driver";  
    Connection con;  
    //jdbc:mysql://ip 地址: 端口号/数据库名字  
    String url="jdbc:mysql://localhost:3306/ctong";  
    String user="root";  
    //连接上数据库mysql  
    public Mysql()  
    {  
        try {  
            Class.forName(driver);  
            //第三个属性是密码  
            con=DriverManager.getConnection(url,user,"");  
              
            if(!con.isClosed())  
                System.out.println("连接成功");  
      
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
          
          
          
    }  
    //在表末增加一栏数据  
    public void addTable(int hour,int minute , int second)  
    {  
        try {  
            //预处理命令添加  
            PreparedStatement sql;  
            sql = con.prepareStatement("insert into exercise4(hour,minute,second) values(?,?,?)");  
            sql.setInt(1,hour);  
            sql.setInt(2,minute);  
            sql.setInt(3,second);  
            sql.executeUpdate();   
              
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
          
    }  
    //增加一栏数据-----指定id  
        public void addTable(int hour,int minute , int second,int id)  
        {  
            try {  
                //预处理命令添加  
                PreparedStatement sql;  
                sql = con.prepareStatement("insert into exercise4(hour,minute,second,id) values(?,?,?,?)");  
                sql.setInt(1,hour);  
                sql.setInt(2,minute);  
                sql.setInt(3,second);  
                sql.setInt(4, id);  
                sql.executeUpdate();   
            } catch (Exception e) {  
                e.printStackTrace();  
            }  
              
        }  
      
    //查找表中所有数据  
    public void SelectTables(){  
          
        try {  
            // 执行sql语句  
            Statement statement = con.createStatement();  
  
            String sql = "select * from exercise4";  
            ResultSet rs = statement.executeQuery(sql);  
            int hour = 0;
            int minute = 0;
            int second = 0;
            int id;  
            while (rs.next()) {  
            	hour = rs.getInt("hour");  
            	minute = rs.getInt("minute");  
            	second = rs.getInt("second");  
                id=rs.getInt("id");  
                System.out.println("hour =" + hour + "  minute=" + minute+"  second="+second+"   id="+id);  
  
            }  
            rs.close();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
          
    }  
      
    //删除一行数据  
    public void DelData(int id)  
    {  
        try {  
            PreparedStatement sql;  
            sql = con.prepareStatement("delete from exercise4 where id = ?");  
            sql.setInt(1,id);  
            sql.executeUpdate();   
              
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
  
    }  
      
    //修改一栏数据  
    public void upData(int hour,int minute ,int second,int id)  
    {  
        try {  
            PreparedStatement sql;  
            sql = con.prepareStatement("update exercise4 set hour=?,minute=?,second=?, where id=?");  
            sql.setInt(1,hour);  
            sql.setInt(2,minute);  
            sql.setInt(3,second);  
            sql.setInt(4, id);  
            sql.executeUpdate();   
              
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
          
    }  
      
      public void close0(){
    	  try {  
            con.close();  
        } catch (SQLException e) {  
              
            e.printStackTrace();  
        }  
      }
}  

?相关图片就不提供了，谢谢观看！