WCF RESTful控制台托管，返回400个错误请求

正在研究WCF RESTful，控制台中的主机

我的步骤：

创建示例模型

创建服务合同

创建服务

在控制台中托管此服务

运行此主机，看起来正常

创建一个winform，通过json post到服务主机使用服务地址

我希望它能起作用，但返回http 400

我试过WCF（不是REST）控制台托管，WebAPI，所有步骤都可以

最后是stackoverflow.com

请帮忙

型号

[Serializable]
public abstract class Building
{
    public Manufacturer Manufacturer { get; set; }
}

[Serializable]
public class Manufacturer
{
    public string Name { get; set; }

    public string Telephone { get; set; }
}

[Serializable]
public class Furniture : Building
{
    public string Name { get; set; }
}

[Serializable]
public class Reception
{
    public int Floor { get; set; }

    public int Number { get; set; }
}

[Serializable]
public class Room : Building
{
    public string Number { get; set; }

    public List<Furniture> Furnitures { get; set; }
}

[Serializable]
public class Hotel : Building
{
    public Guid Guid { get; set; }

    public List<Reception> Receptions { get; set; }

    public List<Room> Rooms { get; set; }

    public string Name { get; set; }

    public string Address { get; set; }
} 

服务

public class HotelService : I Hotel
{
    public bool Build(Models.Hotel hotel)
    {
        if (hotel == null)
            return false;

        // codes here is object hotel(EF) creation, test OK
        return true;
    }
}

WebServiceHost serviceHost = new WebServiceHost(typeof(Demo.Services.HotelService), new Uri("http://192.168.1.101/HotelService"));
ServiceEndpoint endpoint = serviceHost.AddServiceEndpoint(typeof(Demo.Contracts.IHotel), new WebHttpBinding(), "");
ServiceDebugBehavior sdb = serviceHost.Description.Behaviors.Find<ServiceDebugBehavior>();
sdb.HttpHelpPageEnabled = false;

Console.WriteLine("Starting Service...");
// start service
serviceHost.Open();
Console.WriteLine("Started, press RETURN to exit.");
Console.ReadLine();
serviceHost.Close();

主机（控制台）

上的“boolbuildhotel（String）”的Json字符串

---

它需要这样的JSON：

{“k_BackingField”：“k_BackingField”：“4”，“k_BackingField”：“4”}，“k_BackingField”：“x”，“k_BackingField”：“ea59c011-d656-4870-b29b-30a44e668560”，“k_BackingField”：“x”，“k_BackingField”：[{“k_BackingField”：1，“k_BackingField”：1}，{“k_BackingField”：2，“k_BackingField”：2]，“k_BackingField”：“k"”：“k"3”，“k_BackingField”：[{“k_BackingField”：{“k_BackingField”：“1”，“k_BackingField”：“1”}，“k_BackingField”：“1”}，{“k_BackingField”：“2”，“k_BackingField”：“2”}，“k_BackingField”：“2”}]，“k_BackingField”：“空”}

要更改它，您可以使用DataContract和DataMember属性标记所有数据协定：

    [DataContract]
    public abstract class Building
    {
        [DataMember]
        public Manufacturer Manufacturer { get; set; }
    }

---

在这种情况下，它将理解您在问题中给出的json，并将成功处理它。

您的json字符串在address元素之后包含一个Manufacturer元素，并且在Hotel类对象中没有属性。请尝试删除此元素，看看是否有效。

public bool BuildHotel(string json)
{
    WebRequest request = HttpWebRequest.Create("http://192.168.1.101/HotelService");

    request.ContentType = "application/json";

    byte[] data = Encoding.UTF8.GetBytes(json);
    request.ContentLength = data.Length;
    Stream requestStream = request.GetRequestStream();
    requestStream.Write(data, 0, data.Length);
    requestStream.Close();

    WebResponse response = request.GetResponse(); // 400 throwed here
    Stream responseStream = response.GetResponseStream();
    StreamReader responseStreamReader = new StreamReader(responseStream);
    string result = responseStreamReader.ReadToEnd();

    return true;
}

{
    "Guid":"ea59c011-d656-4870-b29b-30a44e668560",
    "Receptions":[
        {"Floor":1,"Number":1},
        {"Floor":2,"Number":2}
    ],
    "Rooms":[
        {
            "Number":"c",
            "Furnitures":[
                {"Name":"1","Manufacturer":{"Name":"1","Telephone":"1"}},
                {"Name":"2","Manufacturer":{"Name":"2","Telephone":"2"}}
            ],
            "Manufacturer":{"Name":"c","Telephone":"c"}
        }
    ],
    "Name":"x",
    "Address":"x",
    "Manufacturer":{"Name":"x","Telephone":"x"}
}

    [DataContract]
    public abstract class Building
    {
        [DataMember]
        public Manufacturer Manufacturer { get; set; }
    }