文章目录
程序说明运行截图项目结构截图main类ActionListener1类ItemListener1类Jfwindow类shut类XialaItmeListener类module-info.java 左上角的图标 总结程序说明
本程序是利用Java的GUI编写的通过执行cmd命令来进行的简单的定时关机和定时重启的程序，本程序具有定时关机与定时重启的功能可以按小时定时，也可以按分钟定时以及按秒来定时，最大的定时时间为315360000秒。使用了maven进行构建jdk11进行开发工具使用的是ideaj社区版，项目的地址为定时关机
运行截图
项目结构截图
main类
/* 作者：徐俊日、*版本：2.0*/package shutdown;public class main {public static void main(String atgs[]){Jfwindow jfwindow=new Jfwindow();jfwindow.ShowWindow();//显示窗口布局}}
ActionListener1类
package shutdown;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JOptionPane;public class ActionListener1 implements ActionListener{Jfwindow view;//设置jfwindow的变量viewint str;static String jrbut="shutdown";//类变量共用储存public void setView(Jfwindow view){this.view=view;}//调用JOptionPane类的静态方法showmessagedialog方法来创建一个消息对话框//第一个参数指定对话框可见时的位置，null在屏幕正前方显示，不为空在正前面居中显示；//第二个参数设置要显示的消息//第三个参数设置对话框的标题//第四个参数指定对话框的类型，例如warning_message信息右侧会显示一个！号//第五个参数an icon to display in the dialog that helps the useridentify the kind of message that is being displayedpublic void actionPerformed(ActionEvent e){String onlynum="^[0-9]+$";//正则表达式来判断输入的是不是正整数String str=view.text1.getText();int time;shut cancel=new shut();shut shut=new shut();if(e.getSource()==view.button1)//当选中第一个单选按钮和点击第一个按钮后的操作{if(str.matches(onlynum)) //Matched()方法用来对滴str与onlynum是不是符合{time=Integer.parseInt(str);//将文本型数字转换成int型数字if(XialaItmeListener.item=="秒"){if(time>=0 && time<315360000){System.out.print(time+"秒\n");//在控制台输出内容shut.getTime(time);//符合则将时间传入给shut类if(jrbut=="shutdown") //通过jrbut的值来判断选择哪个功能{shut.shutdown();}else if(jrbut=="reboot"){shut.Reboot();}else if(jrbut==null){JOptionPane.showMessageDialog(view, "请选择功能！", "警告",JOptionPane.INFORMATION_MESSAGE);}}else{JOptionPane.showMessageDialog(view, time+"超出最大时间315360000秒", "警告",JOptionPane.WARNING_MESSAGE);}}else if(XialaItmeListener.item=="分钟"){time=time*60;if(time>=0 && time<315360000){System.out.print(time/60+"分钟\n");//在控制台输出内容shut.getTime(time);//符合则将时间传入给shut类if(jrbut=="shutdown") //通过jrbut的值来判断选择哪个功能{shut.shutdown();}else if(jrbut=="reboot"){shut.Reboot();}else if(jrbut==null){JOptionPane.showMessageDialog(view, "请选择功能！", "警告",JOptionPane.INFORMATION_MESSAGE);}}else{JOptionPane.showMessageDialog(view, time/60+"超出最大时间5256000分钟", "警告",JOptionPane.WARNING_MESSAGE);}}else if(XialaItmeListener.item=="小时"){time=time*60*60;if(time>=0 && time<315360000){System.out.print(time/60/60+"小时\n");//在控制台输出内容shut.getTime(time);//符合则将时间传入给shut类if(jrbut=="shutdown") //通过jrbut的值来判断选择哪个功能{shut.shutdown();}else if(jrbut=="reboot"){shut.Reboot();}else if(jrbut==null){JOptionPane.showMessageDialog(view, "请选择功能！", "警告",JOptionPane.INFORMATION_MESSAGE);}}else{JOptionPane.showMessageDialog(view, time/60/60+"超出最大时间87600小时", "警告",JOptionPane.WARNING_MESSAGE);}}}else{JOptionPane.showMessageDialog(view, "请输入正整数时间", "定时关机", JOptionPane.WARNING_MESSAGE, null);}}else if(e.getSource()==view.button2){cancel.Cancel();}}}
ItemListener1类
package shutdown;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;public class ItemListener1 implements ItemListener//为单选按钮添加不同的监听器来监听悬着的功能{Jfwindow view2;//设置jfwindow的变量view2,用来储存jfwindow对象的引用public void setView(Jfwindow view){this.view2=view;}@Overridepublic void itemStateChanged(ItemEvent e) {// TODO 自动生成的方法存根if(e.getSource()==view2.jrbutton1){ActionListener1.jrbut="shutdown";//调用actionlistener的类变量来改变jrbut变量的值}else if(e.getSource()==view2.jrbutton2){ActionListener1.jrbut="reboot";}}}
Jfwindow类
package shutdown;import java.awt.FlowLayout;import java.awt.Font;import java.awt.GridLayout;import java.awt.Image;import java.awt.Toolkit;import javax.swing.ButtonGroup;import javax.swing.JButton;import javax.swing.JComboBox;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JRadioButton;import javax.swing.JTextField;/*先设置窗口，然后设置容器例如：Panel、JTabbedPane、JScrollPane、JSplitPane等容器* 然后为容器设置布局例如：网格布局gridlayout、flowlayout等* 然后设置组件，最后添加组件完成窗口设置，* 如果想要添加多个容器到窗口中，那么先要设置窗口的布局例如：flowlayout等，* 然后再添加其他的容器，如果不为窗口设置布局那么只能添加一个容器*/@SuppressWarnings("serial")public class Jfwindow extends JFrame{JLabel Label1,Label2;JButton button1,button2;ButtonGroup buttongroup;JRadioButton jrbutton1,jrbutton2;JTextField text1;JComboBox<String> combox; JPanel jpanel1;JPanel jpanel2;JPanel jpanel3;JPanel jpanel4;ActionListener1 listener;ItemListener1 listener2;XialaItmeListener listener3;public void ShowWindow()//设置窗口{JFrame jframe=new JFrame();//添加一个窗口对象GridLayout gridlayout=new GridLayout(4,1,0,0);//设置2行1列的网格布局,四个参数分别是行数、水平间距、垂直间距jframe.setLayout(gridlayout);//为frame添加布局才能添加多个容器，否者只能添加一个容器Setlayout();jframe.add(jpanel1);//添加容器jframe.add("这是面板2",jpanel2);//两种不同的add容器方法效果是一样的jframe.add(jpanel3);jframe.add(jpanel4);jframe.setSize(400,300);//设置窗口大小jframe.setLocationRelativeTo(null);//设置窗口居中显示jframe.setTitle("定时关机2.0");Image icon=Toolkit.getDefaultToolkit().getImage("src/main/resources/image/dingshi.png");//修改左上角的默认图标jframe.setIconImage(icon);jframe.setResizable(false);//让窗口大小不可调jframe.setVisible(true);jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}public void Setlayout()//设置容器{Font font=new Font("宋体",Font.BOLD,25);//设置字体Font font2=new Font("黑体",Font.HANGING_BASELINE,15);jpanel1=new JPanel();//设置面板容器，可以设置多个容器jpanel2=new JPanel();jpanel3=new JPanel();jpanel4=new JPanel();FlowLayout fllayout1=new FlowLayout(FlowLayout.LEFT);//设置flowlayout布局方式为LEFT对齐FlowLayout fllayout2=new FlowLayout();FlowLayout fllayout3=new FlowLayout(FlowLayout.CENTER);FlowLayout fllayout4=new FlowLayout();jpanel1.setLayout(fllayout1);//设置面板容器的布局jpanel2.setLayout(fllayout2);jpanel3.setLayout(fllayout3);jpanel4.setLayout(fllayout4);jrbutton1=new JRadioButton("关机",true);//设置组件的参数，false代表未选中jrbutton2=new JRadioButton("重启");buttongroup=new ButtonGroup();//为单选按钮设置按钮组，否者无法实现单选buttongroup.add(jrbutton1);//归组才能实现单选buttongroup.add(jrbutton2);button1=new JButton("开始");button2=new JButton("取消");Label1=new JLabel("请输入时间：");Label2=new JLabel("作者邮箱：hmyxhxjr@");text1=new JTextField(null,null,10);combox=new JComboBox<String>();//创建下拉列表combox.addItem("秒");//为下拉列表添加选项combox.addItem("分钟");combox.addItem("小时");Label1.setFont(font);//设置字体和大小Label2.setFont(font2);jrbutton1.setFont(font);jrbutton2.setFont(font);text1.setFont(font);button1.setFont(font);button2.setFont(font);combox.setFont(font);jpanel3.add(jrbutton1);/*为容器添加组件*/jpanel3.add(jrbutton2);jpanel1.add(Label1);jpanel2.add(text1);jpanel4.add(button1);//不同的容器可以添加不同的组件jpanel4.add(button2);jpanel2.add(combox);listener=new ActionListener1();//创建监视器listener2=new ItemListener1();listener3=new XialaItmeListener();listener.setView(this);//将当前窗口传递给listener组合的窗口listener2.setView(this);listener3.setView(this);jrbutton1.addItemListener(listener2);//jrbutton将listener注册为自己的监听器jrbutton2.addItemListener(listener2);button1.addActionListener(listener);button2.addActionListener(listener);text1.addActionListener(listener);combox.addItemListener(listener3);}}
shut类
package shutdown;import java.io.IOException;import javax.swing.JOptionPane;public class shut {Jfwindow view;int time;public int getTime(int time){this.time=time;return time;}void shutdown()//关机{String str2="shutdown -s -t "+time;try {Runtime.getRuntime().exec(str2);//使用该方法来运行DOS的关机命令System.out.println(str2);JOptionPane.showMessageDialog(view, "已经开时定时关机", "定时关机", JOptionPane.OK_CANCEL_OPTION, null);} catch (IOException e) {// TODO 自动生成的 catch 块e.printStackTrace();}}void Reboot()//重启{String str2="shutdown -r -t "+time;try {Runtime.getRuntime().exec(str2);System.out.println(str2);JOptionPane.showMessageDialog(view,"已经开始定时重启", "定时重启", JOptionPane.OK_CANCEL_OPTION, null);} catch (IOException e) {// TODO 自动生成的 catch 块e.printStackTrace();}}void Cancel() //取消{try {Runtime.getRuntime().exec("shutdown -a");System.out.println("shutdown -a");JOptionPane.showMessageDialog(view, "已经取消", "取消定时任务", JOptionPane.OK_OPTION, null);} catch (IOException e) {// TODO 自动生成的 catch 块e.printStackTrace();}}}
XialaItmeListener类
package shutdown;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;public class XialaItmeListener implements ItemListener{Jfwindow view;public static String item="秒";public void setView(Jfwindow view){this.view=view;}@Overridepublic void itemStateChanged(ItemEvent e) {// TODO 自动生成的方法存根item=box.getSelectedItem().toString();}}
module-info.java
module dingshiguanji {requires java.desktop;}
左上角的图标
总结
module-info.java这个Java文件一定要加不加的话就报错。
