如何在C＃桌面应用程序和移动（安卓）设备之间的本地网络进行通信？ [英] How to communicate over local network between C# desktop application and mobile (android) device?

问题描述

我有一个C＃打印出一些数字在屏幕上（.NET 3.5）的桌面应用程序。现在，我想这种扩展到移动设备。 （Android设备在我的情况）。它能够显示的相同数字在计算机屏幕上。整个事情是概念只是一个证明，它没有看起来很好，它没有工作100％，有一个很好的GUI或简单的设置，它只是显示一些数字。

I have a C# (.net 3.5) desktop application which prints out some numbers on the screen. Now I would like to extend this to a mobile device. (Android device in my case.) It has to display the same numbers as on the computer screen. The whole thing is just a proof of concept, it doesn't have to look nice, it doesn't have to work 100%, have a nice GUI or easy setup, it just has to display some numbers.

我一直在寻找到MonoDroid，因为它使用WCF服务的潜力。 （我知道在移动设备和桌面电脑将被连接到同一个网络。）不幸的是MonoDroid的试用版不支持真正的设备，我不想花几百块钱只是为了证明这一点。

I have been looking into MonoDroid, as it has the potential to use a WCF service. (I know the mobile device and the desktop computer will be connected to the same network.) Unfortunately MonoDroid's trial version doesn't support a real device and I don't want to spend a few hundred bucks just to prove a point.

我对Java的基本知识，我认为我能够迅速开发了Android SDK的一个示例应用程序从网页抓取网络上的数据，除preT它（XML，JSON，无论），并在屏幕上显示它。

I have a basic knowledge of Java, and I think I am able to quickly develop a sample application with the Android SDK to fetch data from a web page on the network, interpret it (XML, JSON, whatever) and display it on the screen.

所以我的问题是：是否有可能，从现有的应用程序中，创建某种网络服务（不含建立一个整个IIS服务器），其中包含了一些XML数据，我可以在给定的刷新网页间隔和是从同一网络上的计算机访问？我应该怎么做，要使用哪种技术？

So my question becomes: is it possible to, from within an existing application, create some kind of web service (without setting up an entire IIS server) that contains a web page with some XML data that I can refresh at a given interval and is accessible from a computer on the same network? How should I do this, which technology to use?

还是有其他方法来实现这样的事？

Or are there alternative ways to achieve something like this?

推荐答案

我使用C＃的HttpListener如下...

I use a C# HttpListener as follows...

private void CreateListener
{
    HttpListener listener = null;
    HttpListenerContext context = null;
    HttpListenerRequest request = null;
    HttpListenerResponse response = null;
    string PortNumber = "9876";
    string requestUrl;
    Boolean listen = false;

    try
    {
        if (listener == null)
        {
            listener = new HttpListener();
            listener.Prefixes.Add("http://*:" + PortNumber + "/");
            listener.Start();
            listen = true;
            while (listen)
            {
                try
                {
                    context = listener.GetContext();
                }
                catch (Exception e)
                {
                    listen = false;
                }
                if (listen)
                {
                    request = context.Request;
                    requestUrl = request.Url.ToString();

                    // Process request and/or request Url
                }
            }
        }
    }
}

基本上 listener.GetContext（）; 块，直到接收到一个HTTP请求。然后，您可以使用请求= context.Request 以检索HTTP请求数据，并对其进行处理。然后，您可以使用 context.Response 返回响应。

Basically listener.GetContext(); blocks until an HTTP request is received. You can then use request = context.Request to retrive the HTTP request data and process it. You can then use context.Response to return a response.

相当容易实现和适应。

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