相关疑难解决方法(0)

我有以下代码:

...
AuthenticationHeaderValue authHeaders = new AuthenticationHeaderValue("OAuth2", Contract.AccessToken);
string result = await PostRequest.AuthenticatedGetData(fullUrl, null, authHeaders);
return result; 
...

public static async Task<string> AuthenticatedGetData(string url, FormUrlEncodedContent data, AuthenticationHeaderValue authValue)
{

    HttpClient client = new HttpClient();
    client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(authValue.Parameter);

    HttpResponseMessage response = await client.PostAsync(new Uri(url), data);

    response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
    response.EnsureSuccessStatusCode();
    string responseBody = await response.Content.ReadAsStringAsync();
    return responseBody;
}

响应=等待部分只是继续循环,没有任何反应.我有什么想法我做错了吗？

问题是,我如何发送以下标题:

Authorization: OAuth2 ACCESS_TOKEN

到外部网络api