ProgressMonitorInputStream不会弹出

Question

This is a sever and its receiving a file from a client. It receives the complete file but the progress bar doesn't show up. I am using ProgressInputStream. Here is the piece of code where I am using SwingWorker to create a new thread for progress bar.

SwingWorker<Void,Void> worker = new SwingWorker<Void,Void>()
        {
            protected Void doInBackground()
            {
                try {
                    ss = new ServerSocket(port);
                    s = ss.accept();
                    bytes = new byte[1024];
                    FileOutputStream fos = new FileOutputStream(new File(FileName));
                    DataInputStream dis = new DataInputStream(s.getInputStream());
                    pmis = new ProgressMonitorInputStream(frame,"Receiving",dis);
                    pmis.getProgressMonitor().setMillisToPopup(10);

                    while(pmis.read(bytes) > 0)
                    {
                        fos.write(bytes);
                    }


                    ss.close();
                    fos.close();




                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                return null;
            }
        };
        worker.execute();

Any help would be appreciated. Sorry for my bad English. Thanks in anticipation.

Answer 1

It only pops up 'if it's taking a while'.

NB:

1. Your copy loop is wrong. It should be:

    while ((count = pmis.read(bytes)) > 0) { fos.write(bytes, 0, count); } 

where count is obviously an int .

2. You don't need the DataInputStream .