如何从 WP7 中的服务器获取响应？

发布于 2024-11-17 10:20:29 字数 863 浏览 4 评论 0原文

我正在尝试使用 WP7 上的 HttpWebRequest 类发送请求，但没有得到任何响应... 这是我的代码：

            InitializeComponent();
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.google.com/");
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream dataStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream);
            tbResponse.Text = reader.ReadToEnd();

            // Cleanup the streams and the response.
            reader.Close();
            dataStream.Close();
            response.Close();
            Console.ReadLine();

此外，我使用此扩展：单击此处，但是我在Windows控制台应用程序上测试了它，没有任何问题，所以我认为问题是我对WP7不了解。

原文

I'm trying to send a request with the HttpWebRequest class on WP7, but I don't get any response...
Here is my code:

            InitializeComponent();
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.google.com/");
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream dataStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream);
            tbResponse.Text = reader.ReadToEnd();

            // Cleanup the streams and the response.
            reader.Close();
            dataStream.Close();
            response.Close();
            Console.ReadLine();

Moreover, I use this extension: click here, but I tested it on a Windows Console Application and there wasn't any problem, so I think the problem is that I don't know something about WP7.

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╰◇生如夏花灿烂 2024-11-24 10:20:29

您需要像这样发出异步请求：

var webRequest = (HttpWebRequest)HttpWebRequest.Create(Url);
webRequest.BeginGetResponse(new AsyncCallback(request_CallBack), webRequest );

和响应处理程序：

void request_CallBack(IAsyncResult result)
{
        var webRequest = result.AsyncState as HttpWebRequest;
        var response = (HttpWebResponse)WebRequest.EndGetResponse(result);
        var baseStream = response.GetResponseStream();

            // if you want to read binary response
            using (var reader = new BinaryReader(baseStream))
            {
                DataBytes = reader.ReadBytes((int)baseStream.Length);
            }

            // if you want to read string response
            using (var reader = new StreamReader(baseStream))
            {
                Result = reader.ReadToEnd();
            }
}

这是我开发的一个帮助程序类，用于在开发 Windows Phone 7 应用程序期间处理我的 Web 请求需求：

http://www.manorey.net/mohblog/?p=17&preview=true

You need to make asynchronous requests like this:

var webRequest = (HttpWebRequest)HttpWebRequest.Create(Url);
webRequest.BeginGetResponse(new AsyncCallback(request_CallBack), webRequest );

and the response handler:

void request_CallBack(IAsyncResult result)
{
        var webRequest = result.AsyncState as HttpWebRequest;
        var response = (HttpWebResponse)WebRequest.EndGetResponse(result);
        var baseStream = response.GetResponseStream();

            // if you want to read binary response
            using (var reader = new BinaryReader(baseStream))
            {
                DataBytes = reader.ReadBytes((int)baseStream.Length);
            }

            // if you want to read string response
            using (var reader = new StreamReader(baseStream))
            {
                Result = reader.ReadToEnd();
            }
}

Here is a helper class I developed to handle my web request needs during development of windows phone 7 apps:

http://www.manorey.net/mohblog/?p=17&preview=true

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