问从Java运行CMD

EN

public void run() {
    try {
        Runtime rt = Runtime.getRuntime();
        Process pr = rt.exec("C:\\Windows\\System32\\cmd.exe");
        stdin = pr.getOutputStream();
        writer = new BufferedWriter(new OutputStreamWriter(stdin));
        writer.write("python setup.py py2exe");
        writer.close();
        BufferedReader input = new BufferedReader(new InputStreamReader(pr.getInputStream()));
        String line=null;
        while((line=input.readLine()) != null) {
            System.out.println(line);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}