如何从Java代码执行命令行命令 [英] How to execute command line commands from java code

问题描述

大家好，


我想执行命令行命令示例

Hi All,


I want to execute a command line command example

c:/system32/ username changepassword(username,password) 

其中，用户名和密码存储在变量中，例如String password ="12345"和string username ="akjilh".

请帮助我从Java代码执行此命令，任何教程或任何建议都将受到赞赏.

where username, password are stored in a variable like String password= "12345" and string username="akjilh".

please help me to execute this command from java code any tutorial or any suggestion are appreciated.

推荐答案

请参见Java

See the Java Runtime[^] class.

尊敬的Sakiv，

请尝试此代码.希望这会有所帮助.

我在Linux(Fedora 16)平台上，因此我发出了命令"ls"，其中列出了所有目录&文件位于当前位置，并且按预期，我将在控制台上获取输出.可以尝试发出不同的命令，因为我猜您在Windows平台上:

Dear Sakiv,

Please try this code. Hope this will help.

I''m on Linux(Fedora 16) platform hence i issued the command "ls" which lists all directories & files in current location and as expected I ''m getting the output on console. Try issuing different commands as I can guess you are on Windows Platform:

package com.srk.pkg;

import java.io.*;

public class Test {

	
	public static void main(String[] args) {
		String cmd = "ls";
		Runtime run = Runtime.getRuntime();
		Process pr = null;
		try {
			pr = run.exec(cmd);
			pr.waitFor();
			BufferedReader buf = new BufferedReader(new InputStreamReader(
					pr.getInputStream()));
			String line = "";
			while ((line = buf.readLine()) != null) {
				System.out.println(line);
			}
		} catch (Exception e) {
			System.out.println(e);
		}

	}

}

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