使用java

Question

我有一个客户端通过套接字连接到服务器并发送一些数据，服务器读取数据并返回响应。

以下是我从服务器发送和接收数据的方法

public static String  sendAndReceiveDataToNode(String address, int port, String data) throws ConnectionFailedException {
        Socket me = null;
        DataOutputStream outputStream = null;
        DataInputStream inputStream = null;
        String responseData = null;
        try {
            me = new Socket(address, port);
            outputStream = new DataOutputStream(me.getOutputStream());
            outputStream.write(data.getBytes());
            outputStream.flush();
            LOGGER.info("Data written from client");
            inputStream = new DataInputStream(me.getInputStream());
            responseData = convertStreamToString(inputStream); // here i call inputStream.readLine()
            return responseData;
        } catch (IOException e) {
            e.printStackTrace();
        }
        finally {
            closeOutputStream(outputStream);
            closeInputStream(inputStream);
            closeSocket(me);
        }
        return null;
    }

如果我使用outputStream.flush()，那么我的服务器阻塞在inputStream.readLine（），而我写的数据永远不会到达服务器。如果我使用me.shutdownOutput（）然后数据到达服务器但客户端不阻塞在inputStream.readLine（）从服务器接收数据并读取空字符串，虽然我使用outputStream.flush（）时客户端阻止readLine。

在服务器中我有以下代码

public void run() {
    DataInputStream inputStream = null;
    OutputStream outputStream = null;
    while (running) {
        try {
            this.clientConnection = receptionistSocket.accept();
            inputStream = new DataInputStream(clientConnection.getInputStream());
            String requestData = Util.convertStreamToString(inputStream); //Here i call inputStrea.readLine()
            //Do Some time consuming operation
            String data = createResponse(requestData) ;
            outputStream = new DataOutputStream(clientConnection.getOutputStream());
            outputStream.write(data.getBytes());

        } catch (IOException e) {
            LOGGER.error("Error occurred while accepting client connection");
            LOGGER.error(e.getMessage(), e);
        }
        catch (Exception e) {
            LOGGER.error("Error occurred while accepting client connection");
            LOGGER.error(e.getMessage(), e);
        }
        finally {
            Util.closeInputStream(inputStream);
            Util.closeOutputStream(outputStream);
        }
    }
}

修改 下面缺少代码

public static String convertStreamToString(InputStream is) throws IOException{
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        StringBuilder sb = new StringBuilder();
        String line = null;

        try {
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
        } catch (IOException e) {
            throw e;
        } finally {
            try {
                is.close();
            } catch (IOException e) {
                throw e;
            }
        }

        return sb.toString();
    }

我已经完成了很多教程，但没有一个能解决这个问题。

我错在哪里？