Question

我正在尝试将帖子发送到我的WebApi，然后获取并反序列化结果到我的对象。我从Windows Phone 8.1发送帖子。如何从我的Web Api中获取对象？

我的构造函数：

public MyTravelsPage()
{
     Task getTravels = this.GetTravels();
}

internal async Task GetTravels()
{
    string uri = "http://localhost:6234/api/services/app/travel/GetMyTravels";
    TravelPositions travel = new TravelPositions();
    travel.UserGuid = UserIdentity.UserId;
    string x = JsonConvert.SerializeObject(travel);
    var stringContent = "";
    using (var client = new System.Net.Http.HttpClient())
    {
        // New code:
        client.BaseAddress = new Uri(uri);
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
        HttpContent content = new StringContent(x, Encoding.UTF8);
        var response = await client.PostAsync(uri, new StringContent(x, Encoding.UTF8, "application/json"));
        var p = response.Content.ReadAsStringAsync();
        var result = JsonConvert.DeserializeObject<Dictionary<string, string>>(p.Result);
    }

}

在p.Result中，我得到了这个字符串：

"{\"success\":true,\"result\":{\"output\":[{\"id\":1,\"userGuid\":\"334e5955-fe89-4a49-b8ab-f0b36575bd8d\",\"where\":\"Bukowno\",\"forMoney\":false,\"money\":\"\",\"peopleCount\":1,\"driverGuid\":null,\"longitude\":-122.188606,\"latitude\":47.622482},{\"id\":2,\"userGuid\":\"334e5955-fe89-4a49-b8ab-f0b36575bd8d\",\"where\":\"Krakow\",\"forMoney\":false,\"money\":\"\",\"peopleCount\":1,\"driverGuid\":null,\"longitude\":-122.188606,\"latitude\":47.622482},{\"id\":3,\"userGuid\":\"334e5955-fe89-4a49-b8ab-f0b36575bd8d\",\"where\":\"Warszawa\",\"forMoney\":true,\"money\":\"\",\"peopleCount\":2,\"driverGuid\":null,\"longitude\":-122.188606,\"latitude\":47.622482},{\"id\":4,\"userGuid\":\"334e5955-fe89-4a49-b8ab-f0b36575bd8d\",\"where\":\"Zakopane\",\"forMoney\":false,\"money\":\"\",\"peopleCount\":1,\"driverGuid\":null,\"longitude\":-122.188606,\"latitude\":47.622482}]},\"error\":null,\"unAuthorizedRequest\":false}"

如何从此json字符串中仅获取“result”值？

不幸的是，我的最后一行：

var result = JsonConvert.DeserializeObject<Dictionary<string, string>>(p.Result);

它没有给出字典......只有错误

有关详细信息，这是来自WebApi的对象

public class TravelOutput
{
    public List<Travel> output { get; set; }
}

public class Travel
{
    public int Id { get; set; }
    public Guid UserGuid { get; set; }
    public string Where { get; set; }
    public bool ForMoney { get; set; }
    public string Money { get; set; }
    public int PeopleCount { get; set; }
    public Guid? DriverGuid { get; set; }
    public double Longitude { get; set; }
    public double Latitude { get; set; }
}

Answer 1

您需要 root 对象来反序列化

public class RootObject
{
    public bool success { get; set; }
    public TravelOutput result { get; set; }
    public bool unAuthorizedRequest { get; set; }
}

现在您可以反序列化为

var result = JsonConvert.DeserializeObject<RootObject>(p.Result);

您的列表现在是result.result.output

发布到WebApi并获取结果HttpClient

1 个答案: