Java应用程序在命令提示符下执行命令

Question

我想知道,有没有办法让java应用程序打开命令提示符(cmd.exe)并输入/执行命令,最好不要让用户看到命令提示符窗口.

如果有人知道可以执行此操作的示例应用程序或代码,您的答案将不胜感激!

Answer 1

java.lang.ProcessBuilder和java.lang.Process类可用于执行外部程序并与之通信.使用java.lang.ProcessBuilder类的实例,它可以执行外部程序并返回java.lang.Process子类的实例.Process类提供了从进程执行输入,执行输出到进程,等待进程完成,检查进程的退出状态以及销毁(杀死)进程的方法.

public class ProcessBuildDemo { 
    public static void main(String [] args) throws IOException {

        String[] command = {"CMD", "/C", "dir"};
        ProcessBuilder probuilder = new ProcessBuilder( command );
        //You can set up your work directory
        probuilder.directory(new File("c:\\xyzwsdemo"));

        Process process = probuilder.start();

        //Read out dir output
        InputStream is = process.getInputStream();
        InputStreamReader isr = new InputStreamReader(is);
        BufferedReader br = new BufferedReader(isr);
        String line;
        System.out.printf("Output of running %s is:\n",
                Arrays.toString(command));
        while ((line = br.readLine()) != null) {
            System.out.println(line);
        }

        //Wait to get exit value
        try {
            int exitValue = process.waitFor();
            System.out.println("\n\nExit Value is " + exitValue);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}