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Possible Duplicate:
Execute a linux shell command with “sudo” using java, without entering the required password
我想通过 java 程序在 linux 上执行 sudo 命令，但它要求输入密码。 但是我想在没有密码的情况下运行 prog，请告诉我。 我的程序是
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