Java的双向套接字连接（客户端/服务器）(Java two- way socket connect

我想要做的是从Android手机发送一些JSON到Java服务器工作正常。而Android /客户端看起来是这样的：

                    Socket s = new Socket("192.168.0.36", 12390);
                s.setSoTimeout(1500);

                JSONObject json = new JSONObject();
                json.put("emergency", false);
                json.put("imei", imei);
                json.put("lat", l.getLatitude());
                json.put("lon", l.getLongitude());
                json.put("acc", l.getAccuracy());
                json.put("time", l.getTime());


                BufferedWriter out = new BufferedWriter(new OutputStreamWriter(
                        s.getOutputStream()));
                out.write(json.toString());
                out.flush();
                s.close();

服务器端是这样的：

        try {
        s = new ServerSocket(port);
    } 
    catch (IOException e) {
        System.out.println("Could not listen on port: " + port);
        System.exit(-1);
    }


    Socket c = null;
    while (true) {
        try {
            c = s.accept();
        } catch (IOException e) {
            System.out.println("Accept failed: " + port);
            System.exit(-1);
        }
        try {

            BufferedReader in = new BufferedReader(new InputStreamReader(c.getInputStream()));
                String inputLine = null;
            String result = "";
            while ((inputLine = in.readLine()) != null) {
                result = result.concat(inputLine);  
            }
            System.out.println(result);

正如我所说的，所有的工程。现在我要发送邮件从服务器返回给客户端收到来自客户端的消息之后。我伸出这样，安卓/客户端的代码：

                    Socket s = new Socket("192.168.0.36", 12390);
                s.setSoTimeout(1500);

                JSONObject json = new JSONObject();
                json.put("emergency", false);
                json.put("imei", imei);
                json.put("lat", l.getLatitude());
                json.put("lon", l.getLongitude());
                json.put("acc", l.getAccuracy());
                json.put("time", l.getTime());


                BufferedWriter out = new BufferedWriter(new OutputStreamWriter(
                        s.getOutputStream()));
                out.write(json.toString());
                out.flush();

                String inputLine = null;
                String result = "";
                BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));  
                while ((inputLine = in.readLine()) != null) {
                    Log.d(TAG, in.readLine());
                    result = result.concat(inputLine);
                }

而在服务器端：

        try {
    s = new ServerSocket(port);
} 
catch (IOException e) {
    System.out.println("Could not listen on port: " + port);
    System.exit(-1);
}


Socket c = null;
while (true) {
    try {
        c = s.accept();
    } catch (IOException e) {
        System.out.println("Accept failed: " + port);
        System.exit(-1);
    }
    try {

        BufferedReader in = new BufferedReader(new InputStreamReader(c.getInputStream()));
            String inputLine = null;
        String result = "";
        while ((inputLine = in.readLine()) != null) {
            result = result.concat(inputLine);  
        }
        System.out.println(result);

    PrintWriter out = new PrintWriter(c.getOutputStream());
    out.write("Hello phone");
    out.flush();
    out.close();

在客户端，从来都没有进来，它挂在

                while ((inputLine = in.readLine()) != null) {
                Log.d(TAG, in.readLine());
                result = result.concat(inputLine);
            }

直至插槽超时（永远不会进入循环）。我想这可能是一个时间问题，例如服务器发出答复太早，因此客户端从不接受任何东西，但我试图把out.write（“你好手机”）; 几乎任何地方的代码，总是相同的结果。它可以从ServerSocket的而获得的插座做，不能够发送数据？缺少什么我在这里，这是一整天缠着我...

编辑：尼可莱斯的答案后，我想这（客户端）：

                    out.write(json.toString());
                out.newLine();
                out.write("###");
                out.flush();


                String inputLine = null;
                String result = "";
                BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));  
                while ((inputLine = in.readLine()) != null) {
                    if (inputLine.contains("###")) {
                        break;
                    }
                    Log.d(TAG, in.readLine());
                    result = result.concat(inputLine);

                }


                s.close();

和服务器：

                while ((inputLine = in.readLine()) != null) {

                result = result.concat(inputLine);  
                if (inputLine.contains("###")) {
                    System.out.println("received ###");
                    out.println("Hello phone");
                    out.println("###");
                    out.flush();
                    break;
                }

            }

当时的想法是从服务器发送邮件的客户端关闭套接字之前。仍然不工作...任何提示？

在服务器端，你永远不会发送您的“你好手机”。直到客户端关闭套接字，但在这一点上也没用。这是因为in.readLine()块，直到数据可用或EOF ，即插座关闭。

你需要一种方法来摆脱阅读循环 - 发明（或采用）某些应用程序级协议，它会告诉你，在接收到整个消息。常用的选项是固定长度的消息，长度前缀，分隔等