第七天

Posted 2021-11-30 wl2017

今天，我完成了结束进程的功能，并且可以实现每隔一段时间来更新进程表格。并且如果在表格鼠标左键之后，完成结束进程之后才能继续更新。

package wl;

import java.awt.BorderLayout;
import java.awt.Choice;
import java.awt.Color;
import java.awt.Container;
import java.awt.Font;
import java.awt.Frame;
import java.awt.MenuBar;
import java.awt.MenuItem;
import java.awt.event.MouseEvent;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JToolBar;
import javax.swing.border.Border;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;

public class ProcessApp extends JFrame {
    static JFrame f = new JFrame("Process");
    static JPopupMenu m_popupMenu;// 弹出式菜单、右键菜单
    static JPanel panel = new JPanel();
    static Object[][] cellData = { { "名称", "PID", "优先级", "状态", "用户名", "cpu", "内存", "描述" } };
    static String[] columnNames = { "col1", "col2", "col3", "col4", "col5", "col6", "col7", "col8" };
    static JTable table = new JTable(cellData, columnNames);
    static int focusedRowIndex=-1;//table mouse row number
    static List<processModel> processs=new ArrayList<processModel>();
    static boolean isUpdate=true;//是否更新：当鼠标左键按下后不再更新进程，当过去5秒后继续更新
    
    private  static ProcessApp p=new ProcessApp();
    


    ProcessApp() {// init frame
        f.setVisible(true);
        f.setSize(1000, 800);
        f.setLayout(new BorderLayout());

    }

    void initMenu() {// init menu
        JMenuBar menubar = new JMenuBar();
        JMenu[] menus = new JMenu[] { new JMenu("文件"), new JMenu("选项"), new JMenu("查看") };
        for (int i = 0; i < menus.length; i++) {
            menubar.add(menus[i]);
        }
        f.setJMenuBar(menubar);
    }

    void initToolBar() {
        JToolBar toolbar = new JToolBar();
        JButton[] buttons = new JButton[] { new JButton("应用"), new JButton("进程"), new JButton("性能"), new JButton("联网"),
                new JButton("用户"), new JButton("性能") };
        for (int i = 0; i < buttons.length; i++) {
            toolbar.add(buttons[i]);
            buttons[i].setFont(f.getFont().deriveFont(Font.PLAIN, 18f));

        }
        toolbar.setBackground(Color.white);
        f.getContentPane().add(toolbar, BorderLayout.NORTH);
    }

    void initPanel() {

        panel.setBackground(Color.WHITE);
        f.getContentPane().add(panel, BorderLayout.CENTER);
    }

    void initTable() {
        // （1）名称，优先级，cpu,内存，磁盘，网络，GPU的使用情况，端口，用户名，状态，描述

        table.setSize((int) (panel.getWidth() * 0.2), 40);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
        String[] headers = { "名称", "PID", "优先级", "状态", "用户名", "cpu", "内存", "描述" };
        DefaultTableModel model = new DefaultTableModel(cellData, headers) {
            public boolean isCellEditable(int row, int column) {
                return false;
            }
        };
        table = new JTable(model);
        panel.add(table);

        createPopupMenu();// 创建鼠标点击事件

    }

    void setTable() {
        System.out.println("setTable");

        TableModel tableModel = table.getModel();
         int rows = table.getRowCount();//get table rows
         System.out.println(rows);
         while(rows>1) {//if update not update finish,continue delete rows
               ((DefaultTableModel) tableModel).removeRow(0);// rowIndex是要删除的行序号
               rows = table.getRowCount();//get table rows
        }
            

        // "名称","PID","优先级","状态","用户名","cpu","内存","描述"
        processs = process.Getprocess();
        int i=0;
        for (processModel p : processs) {
            String[] arr = new String[8];
            arr[0] = p.getName();
            arr[1] = p.getPID();
            arr[2] = p.getPrio();
            arr[3] = p.getState();
            arr[4] = p.getUser();
            arr[5] = Double.toString(p.getB_cpu());
            arr[6] = Double.toString(p.getB_memory());
            //arr[7] = p.getDescribe();
            arr[7]=String.valueOf(i);
            i++;
            //System.out.println(arr[0]+"    "+arr[7]);
            // 添加数据到表格
            ((DefaultTableModel) tableModel).addRow(arr);
            

        }
        // 更新表格
        table.invalidate();
        table.setSize(panel.getWidth() - 20, panel.getHeight());

        // JTable对象添加点击事件
        table.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseClicked(java.awt.event.MouseEvent evt) {
                isUpdate=false;
                jTable1MouseClicked(evt);

            }

        });
        
        

    }

    // 设置滚动条
    void setScrollPane() {
        JScrollPane jsp;
        jsp = new JScrollPane(table);
        panel.add(jsp);
    }

//table点击事件

    private void jTable1MouseClicked(java.awt.event.MouseEvent evt) {

        mouseRightButtonClick(evt);

    }

//鼠标右键点击事件

    private void mouseRightButtonClick(java.awt.event.MouseEvent evt) {

        // 判断是否为鼠标的BUTTON3按钮，BUTTON3为鼠标右键

        if (evt.getButton() == java.awt.event.MouseEvent.BUTTON3) {

            // 通过点击位置找到点击为表格中的行

            focusedRowIndex = table.rowAtPoint(evt.getPoint());
            

            if (focusedRowIndex == -1) {

                System.out.println(focusedRowIndex);

            }

            // 将表格所选项设为当前右键点击的行

            table.setRowSelectionInterval(focusedRowIndex, focusedRowIndex);

            // 弹出菜单

            m_popupMenu.show(table, evt.getX(), evt.getY());
            

        }

    }

    public void mousePressed(MouseEvent e) {
        if (e.getButton() == MouseEvent.BUTTON3) {
            int selIndex = table.rowAtPoint(e.getPoint());
            System.out.println(selIndex);
        }
    }

//创建鼠标点击事件
    private static void createPopupMenu() {

        m_popupMenu = new JPopupMenu();

        JMenuItem[] MenuItem = new JMenuItem[7];
        for (int i = 0; i < MenuItem.length; i++) {
            MenuItem[i] = new JMenuItem();
        }
        MenuItem[0].setText("  结束进程  ");
        MenuItem[1].setText("  结束进程树  ");
        MenuItem[2].setText("  设置优先级  ");
        JMenu menu = new JMenu("  资源值  ");
        JMenuItem m1 = new JMenuItem();
        JMenuItem m2 = new JMenuItem();
        m1.setText("值");
        m2.setText("百分比");
        menu.add(m1);
        menu.add(m2);
        
        MenuItem[3].setText("  创建转储文件  ");
        MenuItem[4].setText("  打开文件所在位置  ");
        MenuItem[5].setText("  属性  ");
m_popupMenu.add(MenuItem[0]);
m_popupMenu.add(MenuItem[1]);
m_popupMenu.add(MenuItem[2]);
m_popupMenu.add(MenuItem[3]);
m_popupMenu.add(MenuItem[4]);
m_popupMenu.add(MenuItem[5]);
m_popupMenu.add(MenuItem[6]);
        m_popupMenu.add(menu);
          
            MenuItem[0].addActionListener(new java.awt.event.ActionListener() {
                
                public void actionPerformed(java.awt.event.ActionEvent evt) {

                    // 该操作需要做的事
                    String pid=processs.get(focusedRowIndex-1).getPID();
                    process.Killprocess(pid);
                    p.setTable();
                    isUpdate=true;//操作完成，继续更新

                }

            });

            
        m1.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                // 该操作需要做的事

                System.out.println("该操作需要做的事");

            }

        });
        m2.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                // 该操作需要做的事

                System.out.println("该操作需要做的事");

            }

        });

    }

    public static void main(String[] args) {
    
        p.initMenu();
        p.initToolBar();
        p.initPanel();
        p.initTable();
    
        p.setTable();
        p.setScrollPane();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Boolean result = false;
        int count = 0;
        while(!result) {
            try {
                Thread.sleep(5000); //设置暂停的时间 5 秒
                if(isUpdate==true) {
                count ++ ;
                p.setTable();
                System.out.println(sdf.format(new Date()) + "--循环执行第" + count + "次");
                /*if (count == 3) {
                    result = true;
                    break ;
                }*/
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            }  
        }


        System.out.println("finish");
    }
}

processApp

package wl;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class process {
    //kill -9 [PID]
public static void  Killprocess(String pid) {
        
        Runtime runtime = Runtime.getRuntime();
        List<String> tasklist = new ArrayList<String>();
        java.lang.Process process = null;
        try {
            /*
             * 
             * 自适应执行查询进程列表命令
             * 
             */
            Properties prop = System.getProperties();
            // 获取操作系统名称
            boolean is=false;
            String os = prop.getProperty("os.name");
            if (os != null && os.toLowerCase().indexOf("linux") > -1) {
                // 1.适应与linux

                BufferedReader reader = null;
                // 显示所有进程
                //"名称","PID","优先级","状态","用户名","cpu","内存","磁盘","网络","描述"
                process = Runtime.getRuntime().exec("kill -9 "+pid);
                System.out.println("kill process");
                

            }

        } catch (Exception e) {

            e.printStackTrace();

        }

        

    }

    
    
    //get process infomation
    public static List<processModel> Getprocess() {
        
        Runtime runtime = Runtime.getRuntime();
        List<String> tasklist = new ArrayList<String>();
        java.lang.Process process = null;
        List<processModel> processs=new ArrayList<processModel>();
        int count = 0; // 统计进程数
        try {
            /*
             * 
             * 自适应执行查询进程列表命令
             * 
             */
            Properties prop = System.getProperties();
            // 获取操作系统名称
            boolean is=false;
            String os = prop.getProperty("os.name");
            if (os != null && os.toLowerCase().indexOf("linux") > -1) {
                // 1.适应与linux

                BufferedReader reader = null;
                // 显示所有进程
                //"名称","PID","优先级","状态","用户名","cpu","内存","磁盘","网络","描述"
                process = Runtime.getRuntime().exec("top -b -n 1");
                reader = new BufferedReader(new InputStreamReader(process.getInputStream()));

                String line = null;

                while ((line = reader.readLine()) != null) {
                    if(line.startsWith("   PID")) {
                        is=true;
                        line=reader.readLine();
                    }
                    if(is==true) {
                        
                        Pattern p = Pattern.compile("\\s+");
                        Matcher m = p.matcher(line);
                        line= m.replaceAll(",");
                        
                
                    String[] strs=line.split(",");
                   
                    processModel pro=new processModel();
                    pro.setPID(strs[1]);
                    pro.setUser(strs[2]);
                    pro.setPrio(strs[3]);
                    pro.setMemory(Double.valueOf(strs[4]));
                    pro.setState(strs[8]);
                    pro.setB_cpu(Double.valueOf(strs[9]));
                    pro.setB_memory(Double.valueOf(strs[10]));
                    pro.setName(strs[12]);
                    //gSystem.out.println(pro.toString());
                    processs.add(pro);
                    }
                }

            }

        } catch (Exception e) {

            e.printStackTrace();

        }
         System.out.println(processs.get(0).toString());
        return processs;

    }

    
    public static void main(String[] args) throws Exception {
        //System.out.println(Getprocess());;
        Killprocess("1239");
        //installTool("iotop");
    }
}

processApp