WiFi上的套接字Android和Java在发送文件时冻结

Question

i'm doing a server with Java and a client with Android. Everything works fine, but when i try to receive the file on Android, the IO input freezes. I tried to do the same with a Java test app, and works fine.

My code on the client side:

                int bytesRead;
                long current = 0;

                byte [] mybytearray = new byte[InfoPrograma.BUFFER_LENGTH];

                //Receive file
                InputStream is = socket.getInputStream();
                BufferedOutputStream bos = new BufferedOutputStream(
                    new FileOutputStream(file)
                );

                while (
                    (bytesRead = is.read(
                        mybytearray, 
                        0, 
                        mybytearray.length
                    )
                ) >= 0) {
                    current += bytesRead;
                    bos.write(mybytearray, 0 , bytesRead);
                }

                bos.flush();
                bos.close();

The server side code:

                    File file = new File(fileStr);

                    byte[] buffer = new byte[InfoPrograma.BUFFER_LENGTH];

                    BufferedInputStream bis = new BufferedInputStream(
                        new FileInputStream(file)
                    );

                    OutputStream os = socket.getOutputStream();

                    long tmp = 0;

                    while ((count = bis.read(buffer)) > 0) {
                        os.write(buffer, 0, count);
                        tmp += count;

                        System.out.println(tmp);
                    }

                    os.flush();

BUFFER_LENGHT is 2000. If you need anything else, ask for it, please.

Thank you.

Answer 1

Done it. The only way i found is to send first the lenght of the file to the client, save it, and then do read() while (on my code) current < fileLength.