Json HttpWebRequest无法从MVC3操作获取响应_Json_Asp.net Mvc 3_Post_Httpwebrequest_Fiddler

Json HttpWebRequest无法从MVC3操作获取响应

json asp.net-mvc-3 post

Json HttpWebRequest无法从MVC3操作获取响应,json,asp.net-mvc-3,post,httpwebrequest,fiddler,Json,Asp.net Mvc 3,Post,Httpwebrequest,Fiddler,我正在Windows Phone上运行以下代码： string baseAddress = tcAddress + "/Api/Audio/RegisterAudioThoughtUpload/"; HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(baseAddress); request.Method = "POST"; request.ContentT

我正在Windows Phone上运行以下代码：

        string baseAddress = tcAddress + "/Api/Audio/RegisterAudioThoughtUpload/";
        HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(baseAddress);
        request.Method = "POST";
        request.ContentType = "application/json; charset=utf-8";

        int total = 1633;

        using (var streamWriter = new StreamWriter(request.GetRequestStream()))
        {
            string json = "{ \"AnonymousUserId\":\"" + Guid.NewGuid().ToString() + "\", \"TotalSize\":\"" + total.ToString() + "\" }";

            streamWriter.Write(json);
            streamWriter.Close();
        }

        using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
        {
            int statusCode = (int)response.StatusCode; \\At this point response is null
            StreamReader reader = new StreamReader(response.GetResponseStream());
            string results = reader.ReadToEnd();
            response.Close();
        }

基本上，我正在尝试向mvc3操作发送一个json压缩guid和一个int

在服务器端，处理操作是：

    [HttpPost]
    public JsonResult RegisterAudioThoughtUpload(string AnonymousUserId, int TotalSize)
    {
        var aUId = Guid.Parse(AnonymousUserId);

        return new JsonResult {Data = Guid.NewGuid()};
    }

记录通信的fiddler2显示服务器正在向客户端提供预期响应：

但是在客户机上，对

GetResponse（）

的调用只是超时，实际上从未得到响应

由于它是Windows Phone，因此GetResponse（）的实现方式如下：

    private const int DefaultRequestTimeout = 15000;

    public static HttpWebResponse GetResponse(this HttpWebRequest request)
    {
        var dataReady = new AutoResetEvent(false);
        HttpWebResponse response = null;
        var callback = new AsyncCallback(delegate(IAsyncResult asynchronousResult)
        {
            response = (HttpWebResponse)request.EndGetResponse(asynchronousResult);
            dataReady.Set();
        });

        request.BeginGetResponse(callback, request);

        if (dataReady.WaitOne(DefaultRequestTimeout))
        {
            return response;
        }

        return null;
    }

为什么我没有得到一个

HttpWebResponse

，即使我通过代理看到它正在被发送？

由于这是一个WP应用程序，我建议您避免阻塞主UI线程。我还建议您使用JSON序列化程序，而不是手动构建JSON字符串。让我们从定义我们的模型开始：

[DataContract]
public class Request
{
    [DataMember]
    public string AnonymousUserId { get; set; }

    [DataMember]
    public int TotalSize { get; set; }
}

然后：

var dataToSend = new Request
{
    AnonymousUserId = Guid.NewGuid().ToString(),
    TotalSize = 123
};
var serializer = new DataContractJsonSerializer(typeof(Request));
var request = string.Empty;
using (var stream = new MemoryStream())
{
    serializer.WriteObject(stream, dataToSend);
    request = Encoding.Default.GetString(stream.ToArray());
}
var client = new WebClient();
client.Headers[HttpRequestHeader.ContentType] = "application/json";
client.UploadStringCompleted += (sender, e) =>
{
    // make sure there's no error before trying to access the result
    if (e.Error == null)
    {
        string result = e.Result;
        // TODO: do something with the returned result here
    }
    else
    {
        // some error occurred => notify the UI
    }
};

client.UploadStringAsync(new Uri(tcAddress + "/Api/Audio/RegisterAudioThoughtUpload), request);

我在服务器显示的fiddler响应中还看到另一个问题，即

内容类型

标题设置为

application/json

，但内容不是有效的json：

"03cc77ed-e92b-48d9-b471-ba55a6065e2f"

而不是：

{"Data":"03cc77ed-e92b-48d9-b471-ba55a6065e2f"}

就超时错误而言，可能手机没有收到响应。检查您的网络。