Java套接字：連接但沒有流？

Question

我正在嘗試編寫一些SocketServer和合適的ClientApplet。 連接有效（我回顯了傳入/關閉的連接），但是服務器未獲得任何InputStream。 我只是無法解決問題並感到有點失落：/

完整的項目在這里 。

這是我服務器的負責部分：

MessageService.java

public class MessageService implements Runnable {

private final Socket client;
private final ServerSocket serverSocket;

MessageService(ServerSocket serverSocket, Socket client) {
    this.client = client;
    this.serverSocket = serverSocket;
}

@Override
public void run() {
    PrintWriter out = null;
    BufferedReader in = null;
    String clientName = client.getInetAddress().toString();
    try {
        out = new PrintWriter(new OutputStreamWriter(client.getOutputStream()));
        in = new BufferedReader(new InputStreamReader(client.getInputStream()));
        String line;
        System.out.println("Waiting for "+clientName);

                    /* HERE I TRY TO GET THE STREAM */

        while((line = in.readLine()) != null) {
            System.out.println(clientName + ": " + line);
            out.println(line);
            out.flush();
        }
    }
    catch (IOException e) {
        System.out.println("Server/MessageService: IOException");
    }
    finally {
        if(!client.isClosed()) {
            System.out.println("Server: Client disconnected");
            try {
                client.close();
            }
            catch (IOException e) {}
        }
    }
}
}

部分客戶

QueueOut.java

public class QueueOut extends Thread {
Socket socket;
public ConcurrentLinkedQueue<String> queue;
PrintWriter out;

public QueueOut(Socket socket) {
    super();
    this.socket = socket;
    this.queue = new ConcurrentLinkedQueue<String>();
    System.out.print("OutputQueue started");
}

@Override
public void start() {
    try {
        out = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));
        System.out.println("Running outputqueue");
        while(true) {
            if(this.queue.size() > 0) {
                String message = this.queue.poll();
                System.out.println("Sending "+message);
                out.println(message+"\n");
            }
        }
    }
    catch (IOException ex) {
        System.out.println("Outputqueue: IOException");
    }
}

public synchronized void add(String msg) {
    this.queue.add(msg);
}
}

我已將帖子減少到（我認為）必要的部分：）

Answer 1

即使未使用輸入流，也請嘗試先獲取輸入流，即使您沒有使用它，也應將客戶端和服務器上的逆序匹配（如其他類似線程中所述）。

編輯：

另請參閱套接字編程

祝好運！