Java 服务器，Unity C# 客户端正在冻结答案

【问题标题】：Java Server, Unity C# Client Are FreezingJava 服务器，Unity C# 客户端正在冻结
【发布时间】：2017-02-26 15:44:47
【问题描述】：

我正在构建一个 Unity3D 应该与之通信的 Sphinx4 Java 服务器。将音频数据从 Unity C# 发送到 Java 服务器工作正常。使用接收到的数据进行语音识别也可以正常工作。当我尝试将数据从 Java 发送回 C# 时出现问题。

我当前的代码： JAVA

package main;

import java.io.InputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import edu.cmu.sphinx.api.Configuration;
import edu.cmu.sphinx.api.SpeechResult;
import edu.cmu.sphinx.api.StreamSpeechRecognizer;

public class SpeechRecognition {

private static StreamSpeechRecognizer recognizer;
private static Configuration configuration;

public static void main(String[] args)  {

    configuration = new Configuration();
    configuration.setAcousticModelPath("resource:/edu/cmu/sphinx/models/en-us/en-us");
    configuration.setDictionaryPath("resource:/edu/cmu/sphinx/models/en-us/cmudict-en-us.dict");
    configuration.setLanguageModelPath("resource:/edu/cmu/sphinx/models/en-us/en-us.lm.bin");

    try {
        recognizer = new StreamSpeechRecognizer(configuration);
        ServerSocket serverSocket = new ServerSocket(82);

        while (System.in.available() == 0) {
            Socket socket = serverSocket.accept();
            System.out.println("Client found");
            String recognized = RecognizeText(socket.getInputStream());

            System.out.println("sending now");
            PrintWriter out = new PrintWriter(socket.getOutputStream(), true);

            String json = recognized;
            out.print(json);
            out.flush();
            out.close();

            socket.close();
        }
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    System.out.println("Quitting...");
    serverSocket.close();   

}

private static String RecognizeText(InputStream stream) throws Exception {
    recognizer.startRecognition(stream);
    SpeechResult result;
    String resultString="";
    while ((result = recognizer.getResult()) != null) {
        resultString = result.getHypothesis();
        System.out.format("Hypothesis: %s\n", resultString);
    }
    recognizer.stopRecognition();
    return resultString;
}

}

现在我的 C# 代码是这样的：

void Start () {       
    dataPath = Application.dataPath;
    t = new Thread(Client);
    t.Start();
}

private void Client()
{
    String input;

    TcpClient tcpClient = new TcpClient("localhost", 82);
    NetworkStream networkStream = tcpClient.GetStream();
    BinaryWriter bw = new BinaryWriter(networkStream);

    var filepath = dataPath + "/Resources/audio/test.wav";
    FileStream filestream = new FileStream(filepath, FileMode.Open, FileAccess.Read);
    BinaryReader filereader = new BinaryReader(filestream);
    byte[] bytes = filereader.ReadBytes((Int32)filestream.Length);
    bw.Write(bytes);
    bw.Flush();

    StreamReader streamReader = new StreamReader(networkStream);
    input = streamReader.ReadToEnd();
    print("Received data: " + input + "\n");
}

识别大约需要 10 秒。当给出结果时，系统冻结。不打印 Println("sending now")（在 Java 中）。所以它甚至在到达它之前就冻结了。

奇怪的是：当我只将文本从 Java 发送到 C# 或从 C# 发送到 Java 时，它可以工作。如果我想在两端发送和接收，它会冻结。而且我需要同时发送和接收数据

【问题讨论】：

标签： java c# unity3d server tcpclient

【解决方案1】：

我找到了答案：在 RecognizeText 中循环没有中断，将 return 语句放在 while 循环中可以解决问题，因为无论如何都会首先返回已识别的文本。

【讨论】：