Question

我正在尝试通过java运行cmd命令。命令如＆＃39;资源管理器＆＃39;，＆＃39;记事本＆＃39;正在运行，但命令如“＆＃39; dir＆＃39; ＆＃39;路径＆＃39;没有工作它抛出异常，输出说： -

执行命令java.io.IOException时出现问题：无法运行程序＆＃34; path＆＃34;：CreateProcess error = 2，系统找不到指定的文件

boolean exc(String command){
        Process p;String pingResult="";
        try{
            p=Runtime.getRuntime().exec(command);
            BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
            String inputLine;
            while ((inputLine = in.readLine()) != null) {
                System.out.println(inputLine);
                pingResult += inputLine;
            }
            in.close();

            return true;
        }catch(Exception e){
            System.out.println("Problem in Executing Command "+e.toString());
            return false;
        }
    }

看看我的代码中是否有任何问题。

Answer 1

用于列出指定路径的目录的程序
你可以使用下面的代码，你应该得到你想要的欲望

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package checkapplicationisopen;

import java.io.*;
public class TestExec {
    public static void main(String[] args) {
        TestExec testExec=new TestExec();
        System.out.println(testExec.getDirectoryList("C:\\Documents"));
    }

    /**
     * 
     * @param path directory path which you want to retrieve the directory and files
     * @return the list of directories and Files with the size
     * 
     */
    public String getDirectoryList(String path)
    {
        String dirList="";
        try {
            Process p = Runtime.getRuntime().exec("cmd /C dir "+path);
            BufferedReader in = new BufferedReader(
                                new InputStreamReader(p.getInputStream()));
            String line = null;
            while ((line = in.readLine()) != null) {
                System.out.println(line);
                dirList+=line;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return dirList;
    }
}

通过java运行Shell命令

1 个答案: