java - 使用 BufferedOutputStream 通过 while 循环将字节写入文件。需要帮助

Question

我正在尝试使用 BufferedOutputStream 将字节写入文件，但我需要它在 while 循环中工作。这意味着与 TFTP 服务器一起工作。它写入的文件中完全没有任何内容(这是毫无意义的)。谁能帮我解决这个问题吗？

            WRQ WRQ = new WRQ();
            ACK ACK = new ACK();
            DatagramPacket outPacket;
            BufferedOutputStream bufferedOutput = new BufferedOutputStream(new FileOutputStream(filename));
            byte[] bytes;
            byte[] fileOut;
            outPacket = WRQ.firstPacket(packet);
            socket.send(outPacket);

            socket.receive(packet);

            while (packet.getLength() == 516){

            bytes = WRQ.doWRQ(packet);
            bufferedOutput.write(bytes);

            outPacket = ACK.doACK(packet);
            socket.send(outPacket);

            socket.receive(packet); 

            }

            bytes = WRQ.doWRQ(packet);
            bufferedOutput.write(bytes);

            outPacket = ACK.doACK(packet);
            socket.send(outPacket);

Answer 1

完成后您不会关闭流。