Question

在HttpClient内部使用语句我需要从HttpResponseMessage的某处解包。

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：如何从此行获取HttpResponseMessage

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

Answer 1

你应该await任务：

HttpResponseMessage m = await client.GetAsync(url);

为此，需要将调用方法标记为async。

Answer 2

要获取HttpResponseMessasge，应使用Task.Result属性。这是您从Task获得的HttpResponseMessage的代码（经过一些修改）：

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;
}

从任务<httpresponsemessage>获取HttpResponseMessage

2 个答案: