工具类调用

  1.     public static void main(String[] args) {
  3.         WindowCmdCtrl cmd = new WindowCmdCtrl();
  4.         cmd.isPrintCmd(true);//执行之前打印执行的命令,默认为false，可不设置
  5.         cmd.setCharset("GBK");//设置返回内容的编码格式为GBK,默认为GBK，可不设置
  7.         String tree = cmd.exec("tree",null,"E:\\tool");
  8.         System.out.println("E\\tool的文件树为："+tree);
  10.         cmd.exec("notepad");//打开记事本
  11.     }

工具类

下载：WindowCmdCtrl.java

  1. import java.io.*;
  2. import java.nio.charset.Charset;
  4. public class WindowCmdCtrl {
  6.     private Runtime runtime;
  7.     private String charset = "GBK";//编码格式
  8.     private boolean isPrintCmd = false;
  10.     public WindowCmdCtrl(){
  11.         runtime = Runtime.getRuntime();
  12.     }
  14.     /**
  15.      * 设置编码格式
  16.      * @param charset
  17.      */
  18.     public void setCharset(String charset){
  19.         if (charset!=null&&!charset.isEmpty()){
  20.             this.charset = charset;
  21.         }
  22.     }
  24.     /**
  25.      * 是否打印执行的命令
  26.      * @param isPrintCmd
  27.      */
  28.     public void isPrintCmd(boolean isPrintCmd){
  29.         this.isPrintCmd = isPrintCmd;
  30.     }
  32.     /**
  33.      * 对文件夹进行cmd操作
  34.      *
  35.      * @param cmd
  36.      * @param envp
  37.      * @param dir
  38.      * @return
  39.      */
  40.     public String exec(String cmd, String[] envp, String dir){
  42.         if (!cmd.startsWith("cmd /c")){
  43.             cmd = "cmd /c "+cmd;
  44.         }
  46.         if (isPrintCmd){
  47.             System.out.println(dir+">"+cmd);
  48.         }
  50.         try {
  51.             return getReply(runtime.exec(cmd, envp, new File(dir)));
  52.         }catch (Exception e){
  53.             e.printStackTrace();
  54.             return null;
  55.         }
  56.     }
  58.     /**
  59.      * 执行cmd
  60.      * @param cmd 命令
  61.      * @return
  62.      */
  63.     public String exec(String cmd){
  64.         if (!cmd.startsWith("cmd /c")){
  65.             cmd = "cmd /c "+cmd;
  66.         }
  68.         if (isPrintCmd){
  69.             System.out.println(cmd);
  70.         }
  72.         try {
  73.             return getReply(runtime.exec(cmd));
  74.         }catch (Exception e){
  75.             e.printStackTrace();
  76.         }
  78.         return null;
  79.     }
  81.     /**
  82.      * 获取应答
  83.      * @param process
  84.      * @return
  85.      */
  86.     private String getReply(Process process){
  88.         try{
  89.             BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream(), Charset.forName(charset)));
  90.             StringBuilder builder = new StringBuilder();
  92.             String line;
  93.             while ((line=br.readLine())!=null) {
  94.                 builder.append(line);
  95.                 builder.append("\r\n");
  96.             }
  98.             BufferedReader error = new BufferedReader(new InputStreamReader(process.getErrorStream(),Charset.forName(charset)));
  99.             String errorLine;
  101.             while ((errorLine = error.readLine())!=null) {
  102.                 builder.append(errorLine);
  103.                 builder.append("\r\n");
  104.             }
  106.             return builder.toString();
  107.         }catch (Exception e){
  108.             e.printStackTrace();
  109.         }
  111.         return null;
  112.     }
  114.     public void close(){
  115.         if (runtime!=null){
  116.             runtime.gc();
  117.         }
  118.     }
  119. }