Ways to run dir command in Process and get Output

Question

Hello,
In one of the control in our web application, User can select any directory from his work area and can get list of directories and content of directories i.e. list of files. As working on file object is really slow so the performance is extremely poor. I am thinking of using Process object and run dir command for any directory selected by user and show the directory listing to user.
Do you guys think it would be possible

Answer 1

Its always good to work with IO buffer than low level file api. That should be irrelevant to the question as asked (if not then there might be other problems.)This is no way irrelevant but its a fact. Working with Java File api to traverse the content of the directory is really painful. Because we currently use file api to help user to traverse thru her work area.
BTW, there are two servers. One running the app and the other have all users work areas. User can traverse the workareas content by using something \\server1\workarea1\user1\folder1 etc... in the app to see the content of any folder.A "server" in this context would be an "application" such as something like tomcat. Your client would then ask the "server" for information.
In your case you are dealing with another file system via the windows remote file system access. So per my question it is not another "server".A server is what providing service to a client and in our case its a app server with a web app in it. The users use the web app to manage their work area(which is another file server).
The app server and file server and physically two separate machines.
So again, I am back to my first question, how can run dir command using Process object and get the buffer.
Till now, I have done this
ProcessBuilder pb = new ProcessBuilder("cmd", "dir", "c:/");
        pb.directory( new File("C:/temp")); // Or whatever directory you want for cwd
        Map<String,String> env = pb.environment();
        env.put("PATH", "C:/temp");
        try {
             Process process = pb.start();
               InputStream inStream = process.getInputStream();
               new AsyncPipe(process.getErrorStream(), System.out).start();
             new AsyncPipe(process.getInputStream(), System.out).start();
             final int returnCode = process.waitFor();
             System.out.println("Return code is " + returnCode);
               System.out.println("\nExit value = " + inStream + "\n");
          } catch (Exception e) {
               e.printStackTrace();
          }However it simply opens command prompt