Java TCP客户端-发送和接收响应

我正在连接到一个远程TCP侦听器，该侦听器接收一个字符串，并用响应进行响应

从我的Windows8手机应用程序到Java Jar。Jar正在接收消息，但Windows 8 Phone应用程序没有收到响应

C代码

outputClient.Connect (/IP ADDRESS/, /Port/);

        using (Socket sock = outputClient.Client) {
            sock.Send (UTF8Encoding.ASCII.GetBytes (broadcastMessage));

            var response = new byte[100];

            sock.Receive (response);
            var str = Encoding.ASCII.GetString (response).Replace ("\0", "");
            Console.WriteLine ("[RECV] {0}", str);
        } <-- JAVA CODE DOESN'T GET HIT UNTIL THIS LINE IS COMPLETED

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再做一点解释：JAVA代码在这一行完成之前不会被命中，这意味着套接字似乎在使用socket sock=outputClient.Client之前不会被发送

我将C代码替换为：

using (TcpClient client = new TcpClient (/IP ADDRESS/, /PORT/))
        using (NetworkStream stream = client.GetStream ())
        using (StreamReader reader = new StreamReader (stream))
        using (StreamWriter writer = new StreamWriter (stream)) {
            writer.AutoFlush = true;

            foreach (string lineToSend in linesToSend) {
                Console.WriteLine ("Sending to server: {0}", lineToSend);
                writer.WriteLine (lineToSend);
                string lineWeRead = reader.ReadLine ();
                Console.WriteLine ("Received from server: {0}", lineWeRead);
                Thread.Sleep (2000); // just for effect
            }
            Console.WriteLine ("Client is disconnecting from server");
        }

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这意味着什么：直到这一行完成，JAVA代码才被命中？如果此时没有执行Java代码，您的C程序如何接收任何数据？为什么你的问题似乎表明C接收没有完成？这个问题需要做大量的清理，这样才有意义。就发布的C代码而言，您犯的一个主要错误是没有检查接收的字节数。更重要的是，如果您使用的是TcpClient，那么为什么不从中获取NetworkStream并封装在StreamReader中（如Java代码中所示）？我做了一个快速编辑以进一步解释它。抱歉，这没有帮助。除非将套接字设置为非阻塞，否则在接收到某些数据之前无法访问using块的右括号，而在发送某些数据之前无法访问using块的右括号。Java端不可能在到达using语句的结束块之前不发送；它发送的很好，如果不是，它只是挂起。那么当sock.receiverresponse在那里时，接收到什么数据？

using (TcpClient client = new TcpClient (/IP ADDRESS/, /PORT/))
        using (NetworkStream stream = client.GetStream ())
        using (StreamReader reader = new StreamReader (stream))
        using (StreamWriter writer = new StreamWriter (stream)) {
            writer.AutoFlush = true;

            foreach (string lineToSend in linesToSend) {
                Console.WriteLine ("Sending to server: {0}", lineToSend);
                writer.WriteLine (lineToSend);
                string lineWeRead = reader.ReadLine ();
                Console.WriteLine ("Received from server: {0}", lineWeRead);
                Thread.Sleep (2000); // just for effect
            }
            Console.WriteLine ("Client is disconnecting from server");
        }