如何从java程序运行没有密码的sudo命令？ [英] How to run sudo command without password from java program?

问题描述

可能重复：

使用“ sudo”执行linux shell命令使用java，无需输入所需密码

我想执行sudo命令linux通过java程序却要求输入密码。
但是我想在没有密码的情况下运行prog，请告诉我。
我的编程是

I want to execute sudo command on linux through java program but it ask for password. But I want to run prog without password,please tell me. My prog is

public class JavaCommandProg {
    public static void main(String args[]) throws IOException, InterruptedException {
        String command="sudo cat /etc/sudoers";
        Process myProcess =null;
        try {
            Runtime runtime=Runtime.getRuntime();
            File file=new File("/home/users/admin/temp");
            myProcess = runtime.exec(command,null,file);
            myProcess.waitFor();
            InputStreamReader myIStreamReader = new InputStreamReader(myProcess.getInputStream());
            BufferedReader br=new BufferedReader(myIStreamReader);
            String line;
            while((line=br.readLine())!=null){
                System.out.println(line);
            }
        } catch (IOException anIOException) {
            System.out.println(anIOException);
        }
    }
}

Compling like: javac JavaCommandProg.java
and          : java JavaCommandProg

推荐答案

使用sudo授予用户权限。请看这里： http ：//www.ducea.com/2006/06/18/linux-tips-password-usage-in-sudo-passwd-nopasswd/

Grant your user the permissions by using sudo. Have a look here: http://www.ducea.com/2006/06/18/linux-tips-password-usage-in-sudo-passwd-nopasswd/

例如：

/etc/sudoers
admin    ALL = NOPASSWD: ALL

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