如何在Windows Phone 8.1 / Windows 8.1中為http客戶端請求操作設置超時

Question

如何將Timeout屬性設置為Windows.Web.Http.HttpClient操作。 我使用的代碼示例如下。

public HttpClient httpClient;
public CancellationTokenSource cts;

public void SendRequest(addressUri,postrequestbody)
{
    HttpHelper.CreateHttpClient(ref httpClient);
    cts = new CancellationTokenSource();
    HttpRequestMessage msg = 
        new HttpRequestMessage(new HttpMethod("POST"), 
                               new Uri(addressUri));
    msg.Content = new HttpStringContent(postrequestbody);
    msg.Content.Headers.ContentType = 
        new HttpMediaTypeHeaderValue("application/json");
    HttpResponseMessage response = 
        await httpClient.SendRequestAsync(msg).AsTask();

    if (response.StatusCode == HttpStatusCode.Ok)
    {
    }
}

Answer 1

使用CancellationToken ：

try 
{
    CancellationTokenSource cts = new CancellationTokenSource(2000); // 2 seconds
    HttpClient client = new HttpClient();
    HttpResponseMessage response = await
        client.SendRequestAsync(request).AsTask(cts.Token);
}
catch (TaskCanceledException ex)
{
    // Catch operation aborted ...
}