JAVA服务器和.Net客户端编程

Question

我正在与 Java 服务器进行通信。 一个用java开发的应用程序，它运行在一些ip、端口上。 例如 192.168.1.1 端口 9090 不想使用我的 ASp .NET ( C# ) 与该服务器通信

我有以下场景：

1. 与服务器的连接
2. 数据传输完毕后，我必须通知服务器我的数据传输已完成。 所以在那之后服务器将处理数据并恢复我（响应）。
3. 然后我将不得不读取该数据。

当我使用 NetworkStream 类时。

我使用的 1 种方法是写入发送数据。

但是服务器不知道是否收到了完整的数据。 所以它不断地等待数据。

那么如何做到这一点呢？

Answer 1

也许您可以考虑使用 Eneter 消息传递框架进行该通信。
它是用于进程间通信的轻量级跨平台框架。

Java 服务代码如下所示：

// Declare your type of request message.
public static class MyRequestMsg
{
    public double Number1;
    public double Number2;
}

// Declare your type of response message.
public static class MyResponseMsg
{
    public double Result;
}


public static void main(String[] args) throws Exception
{
    // Create receiver that receives MyRequestMsg and
    // responses MyResponseMsg
    IDuplexTypedMessagesFactory aReceiverFactory = new DuplexTypedMessagesFactory();
    myReceiver = 
      aReceiverFactory.createDuplexTypedMessageReceiver(MyResponseMsg.class, MyRequestMsg.class);
    
    // Subscribe to handle incoming messages.
    myReceiver.messageReceived().subscribe(myOnMessageReceived);
    
    // Create input channel listening to TCP.
    IMessagingSystemFactory aMessaging = new TcpMessagingSystemFactory();
    IDuplexInputChannel anInputChannel = 
      aMessaging.createDuplexInputChannel("tcp://127.0.0.1:4502/");

    // Attach the input channel to the receiver and start the listening.
    myReceiver.attachDuplexInputChannel(anInputChannel);
    
    System.out.println("Java service is running. Press ENTER to stop.");
    new BufferedReader(new InputStreamReader(System.in)).readLine();
    
    // Detach the duplex input channel and stop the listening.
    // Note: it releases the thread listening to messages.
    myReceiver.detachDuplexInputChannel();
}

private static void onMessageReceived(Object sender, 
             TypedRequestReceivedEventArgs<MyRequestMsg> e)
{
    // Get the request message.
    MyRequest aRequest = e.getRequestMessage();
    
    ... process the request ...
            
    // Response back the result.
    MyResponseMsg aResponseMsg = new MyResponseMsg();
    ... set the result in the response message ...
    
    try
    {
        // Send the response message.
        myReceiver.sendResponseMessage(e.getResponseReceiverId(), aResponseMsg);
    }
    catch (Exception err)
    {
        EneterTrace.error("Sending the response message failed.", err);
    }
}


// Handler used to subscribe for incoming messages.
private static EventHandler<TypedRequestReceivedEventArgs<MyRequestMsg>> myOnMessageReceived
        = new EventHandler<TypedRequestReceivedEventArgs<MyRequestMsg>>()
{
    @Override
    public void onEvent(Object sender, TypedRequestReceivedEventArgs<MyRequestMsg> e)
    {
        onMessageReceived(sender, e);
    }
};

.NET 客户端看起来像这样：

 public class MyRequestMsg { public double Number1 { get; set; } public double Number2 { get; set; } } public class MyResponseMsg { public double Result { get; set; } } private IDuplexTypedMessageSender<MyResponseMsg, MyRequestMsg> myMessageSender; private void OpenConnection() { // Create message sender. // It sends string and as a response receives also string. IDuplexTypedMessagesFactory aTypedMessagesFactory = new DuplexTypedMessagesFactory(); myMessageSender = aTypedMessagesFactory.CreateDuplexTypedMessageSender<MyResponseMsg, MyRequestMsg>(); // Subscribe to receive response messages. myMessageSender.ResponseReceived += OnResponseReceived; // Create TCP messaging. IMessagingSystemFactory aMessaging = new TcpMessagingSystemFactory(); IDuplexOutputChannel anOutputChannel = aMessaging.CreateDuplexOutputChannel("tcp://127.0.0.1:4502/"); // Attach the output channel to the message sender and be able // send messages and receive responses. myMessageSender.AttachDuplexOutputChannel(anOutputChannel); } private void CloseConnection(object sender, FormClosedEventArgs e) { // Detach output channel and stop listening to response messages. myMessageSender.DetachDuplexOutputChannel(); } private void SendMessage() { // Create message. MyRequestMsg aRequestMessage = new MyRequestMsg(); ... // Send message. myMessageSender.SendRequestMessage(aRequestMessage); } private void OnResponseReceived(object sender, TypedResponseReceivedEventArgs<MyResponseMsg> e) { // Get the response message. MyResponseMsg aResponse = e.ResponseMessage; .... process the response from your Java client .... }