java - 聊天客户端程序出现问题

Question

我有一个在本地主机上运行的服务器聊天和客户端聊天程序。当我尝试连接到服务器时，我的客户端程序在下一行卡住 in = new ObjectInputStream(socket.getInputStream());这是我尝试连接到服务器的一段代码

            Socket socket = new Socket(host, port);
            try {
                out = new ObjectOutputStream(socket.getOutputStream());
                in = new ObjectInputStream(socket.getInputStream());
                Message m = new Message(null, nick, Message.Type.REGISTER);
                out.writeObject(m);
                out.flush();
            } catch (IOException ex) {
                socket.close();
                throw ex;
            }

Message类实现了Serialized接口(interface)，因此可以通过网络进行序列化。这是服务器处理客户端请求的一段代码

try {
            ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(client.getInputStream()));
            Message m = (Message) in.readObject();
            switch (m.getMessageType()) {
                case REGISTER:
                    registerUser(m);
                    break;
                case CHATMESSAGE:
                    sendMessageToAll(m);
                    break;
                case UNREGISTER:
                    unregisterUser(m);
                    break;
            }
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(Chatserver.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(Chatserver.class.getName()).log(Level.SEVERE, null, ex);
        }

方法registerUser、unregisterUser、sendMessageToAll只需调用下一个方法

private void sendMessage(Message m, Socket s) throws IOException {
        ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(s.getOutputStream()));
        out.writeObject(m);
        out.flush();
       // out.close();
    }

哪里出错了？

Answer 1

看来问题可能与描述的问题相同here.