Java之执行Windows 命令行-yellowcong

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通过Java程序，来执行Window命令,里面包含了java打开浏览器和java打开文件夹的操作，以级java如何操作获取任务列表
window命令工具

package com.yellowcong.utils;import java.awt.Desktop;import java.io.File;import java.io.IOException;import java.net.URI;import java.util.ArrayList;import java.util.Date;import java.util.List;import java.util.Scanner;/** * window 的工具方法 * @author yellowcong * @date 2016年1月8日 * */public class WindowsCommonUtils {    private WindowsCommonUtils(){}    /**     * 执行命令     * @param common     * @return     */    public static Process exec(String common){        try {            Process process = Runtime.getRuntime().exec(common);            return process;        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        return null;    }    /**     * 通过pid杀死某个进程     * @param pid     */    public static void killProcess(int pid){        WindowsCommonUtils.exec("tskill "+pid);    }    /**     * 通过 name杀死某个进程     * @param name     */    public static void killProcess(String name){        List<Task> tasks = WindowsCommonUtils.getTask(name);        //循环来杀死进程        for(WindowsCommonUtils.Task task:tasks){            WindowsCommonUtils.killProcess(task.getPid());        }    }    /**     * 通过名称来获取任务       * 一个名称可以获取到多个进程     * @param name     * @return     */    public static List<Task> getTask(String name){        List<Task> tasks =  listProcess();        List<Task> result = new ArrayList<WindowsCommonUtils.Task>();        for(Task task:tasks){            if(task.getName().equals(name) ||task.getName().equals(name+".exe")){                result.add(task);            }        }        return result;    }    /**     * 获取所有的Task 列表     * @return     */    public static List<Task> listProcess(){        Process process = WindowsCommonUtils.exec("taskList");        Scanner scanner = new Scanner(process.getInputStream());        List<Task> tasks = new ArrayList<Task>();        int index = 0;        while(scanner.hasNextLine()){            String str = scanner.nextLine();            if(index >2){                String name = str.substring(0,30).trim();                int pid = new Integer(str.substring(30, 34).replace(" ", ""));                String dialogName = str.substring(35,60).trim();                int dialogCount =new Integer(str.substring(60,63).replace(" ", ""));                int ramUse = new Integer(str.substring(64,74).replace(" ", "").replace(",",""));                tasks.add(new Task(name, pid, dialogName, dialogCount, ramUse));            }            index ++;        }        //tskill         scanner.close();        return tasks;    }    /**     * 打开文件管理器      * @param file     */    public static void openFileDialog(File file){        if(!file.exists()){            throw new RuntimeException(new Date().toLocaleString()+"  文件路径不存在" );        }        if(!file.isDirectory()){            throw new RuntimeException(new Date().toLocaleString()+"  只能打开文件夹，不可以打开文件" );        }        try {            String osname = System.getProperty("os.name").toLowerCase();            String [] cmd = new String [2];            if(osname.startsWith("windows")){                cmd[0] ="explorer";            }else{                //unix的情况                cmd[0] ="netscape";            }            cmd[1] = file.getPath();            //通过cmd的直接 打开，这个 是window的， 没有 想到我们的linux//          String [] cmd = new String[]{"cmd","/c","start"," ",file.getPath()};            Runtime.getRuntime().exec(cmd);        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }    /**     * 给定一个 http://xx路径  供浏览器打开     * @param url     */    public static void openBrowser(String url){        try {            Desktop.getDesktop().browse(new URI(url));        } catch (Exception e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }    //创建内部类    public static class Task{        //任务名称        private String name;        //pid        private int pid;        //对话框        private String dialogName;        //对话框数量        private int dialogCount;        //内存使用        private int ramUse;        public Task(String name, int pid, String dialogName, int dialogCount,                int ramUse) {            super();            this.name = name;            this.pid = pid;            this.dialogName = dialogName;            this.dialogCount = dialogCount;            this.ramUse = ramUse;        }        public Task() {            super();            // TODO Auto-generated constructor stub        }        public String getName() {            return name;        }        public void setName(String name) {            this.name = name;        }        public int getPid() {            return pid;        }        public void setPid(int pid) {            this.pid = pid;        }        public String getDialogName() {            return dialogName;        }        public void setDialogName(String dialogName) {            this.dialogName = dialogName;        }        public int getDialogCount() {            return dialogCount;        }        public void setDialogCount(int dialogCount) {            this.dialogCount = dialogCount;        }        public int getRamUse() {            return ramUse;        }        public void setRamUse(int ramUse) {            this.ramUse = ramUse;        }    }}
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