Java中的不可删除文件夹 [英] Undeletable Folder in java

问题描述

我尝试使用Java代码创建不可删除的文件夹。我在命令提示符下使用命令 cacls（Foldername）/ e / c / d％username％ 。然后，我尝试在我的java类（Eclipse IDE）中实现。

I tried to create a Undeletable folder using java code. I use the command "cacls (Foldername) /e /c /d %username%" in command prompt it worked fine.Then i tried to implement in my java class (Eclipse IDE). It doesn't work.

UndeletableFolder.java

UndeletableFolder.java

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;


public class UndeletableFolder {


    public static void main(String args[]){

          Runtime rt = Runtime.getRuntime(); 
                      String cmd=("cacls hidden /e /c /d %username%");
                    ProcessBuilder p = new ProcessBuilder(new String[] { "cmd.exe", "/C",
                            cmd });

                    Process pro;
                    try {
                        pro = p.start();
                        InputStream is = pro.getInputStream();
                        InputStreamReader isr = new InputStreamReader(is);
                        BufferedReader br = new BufferedReader(isr);
                        String line;
                        while ((line = br.readLine()) != null) {
                            System.out.println(line);
                        }

                    } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }

    }


}

（如果有其他方法）。

if any other way to do this. Thanks in advance.

推荐答案

尝试使用此代码可以正常工作。它适用于文件和文件夹。

Try this code it works fine.It suits for both file and folder.

public class Undeletable {

    public static void main(String[] args) {

        Runtime runtime=Runtime.getRuntime();
        try {
            Process process= runtime.exec("cmd.exe /c  start cacls text.txt /e /d %username%");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } 


}

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