从Task<HttpResponseMessage>获取HttpResponseMessage

Question

在HttpClient using语句中，我需要从某处HttpResponseMessage解包。

using (HttpClient client = new HttpClient())
{
     client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", authUser);
     Task<HttpResponseMessage> m = client.GetAsync(url);   
     // HttpResponseMessage msg = ???              
     task.Wait();
     return task.Result;
}

我的问题是:如何从这行获得HttpResponseMessage

Task<HttpResponseMessage> m = client.GetAsync(url);   

Answer 1

您应该对任务执行await操作：

HttpResponseMessage m = await client.GetAsync(url);   

为此，调用方法需要标记为async。

Answer 2

要获取HttpResponseMessasge，您应该使用Task.Result属性。这是你从任务中得到的HttpResponseMessage代码(稍微修改了一下)：

using (HttpClient client = new HttpClient())
{
    client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", authUser);
    Task<HttpResponseMessage> task = client.GetAsync(uri);
    **HttpResponseMessage msg = task.Result;**
    task.Wait();
    return task.Result;
}