任务继续

Question

我有一个返回人员列表的Web API：

public async Task<HttpResponseMessage> Get()
{
    var people = await _PeopleRepo.GetAll();
    return Request.CreateResponse(HttpStatusCode.OK, people);
}

我有一个控制台应用程序，我希望能够调用它以便首先获取人员，然后迭代调用他们的ToString（）方法，然后完成。

我有以下方法来吸引人们：

static async Task<List<Person>> GetAllPeople()
{
    List<Person> peopleList = null;
    using (var client = new HttpClient())
    {
        client.BaseAddress = new Uri("http://localhost:38263/");
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        HttpResponseMessage response = await client.GetAsync("People");
        response.EnsureSuccessStatusCode();
        if (response.IsSuccessStatusCode)
        {
            peopleList = await response.Content.ReadAsAsync<List<Person>>();
        }
    }

    return peopleList;
}

然后我有第二个函数来打印列表：

static void PrintPeopleList(List<Person> people)
{
    if (people == null)
    {
        Console.Write("No people to speak of.");
        return;
    }

    people.ForEach(m => Console.WriteLine(m.ToString()));
}

我尝试使用任务工厂首先使用GetAllPeople（）下载人员列表，然后在响应返回时将结果提供给PrintPeopleList（），但编译器发出了模糊的调用错误：

Task.Factory.StartNew(() => GetAllPeople()).ContinueWith((t) => PrintPeopleList(t.Result));

我离开了吗？

Answer 1

致电

List<Person> persons = await GetAllPeople();
PrintPeopleList(persons);