WCF REST风格的控制台主办，返回400错误的请求

Question

学习WCF REST风格，主机控制台，

我的步骤：

1. 创建样本模型
2. 创建服务合同
3. 创建服务
4. 在控制台中托管此服务。
5. 运行这个主机，看起来不错。
6. 创建一个winform，通过json post使用服务地址来服务主机。
7. 我希望它的工作，但返回的HTTP 400

我尝试了WCF（不是REST）控制台主办，的WebAPI，步骤一切ok。

finally，stackoverflow。COM

请帮助

模式

[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; } 
} 

合同

[ServiceContract] 
public interface IHotel 
{ 
    // Create objct Hotel 
    [OperationContract] 
    [WebInvoke(UriTemplate = "", Method = "POST", RequestFormat= WebMessageFormat.Json, ResponseFormat=WebMessageFormat.Json)] 
    bool Create(Hotel hotel); 
} 

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; 
    } 
} 

主机（控制台）

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(); 

客户端（WinForm的）

来电

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; 
} 

JSON字符串为 '布尔BuildHotel（串）' 在

{ 
    "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"} 
} 

Answer 1

，预计这类JSON的：

{ “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_ BackingField “：{” K _BackingField “：” 3" ， “k_ BackingField “：” 3 “}，” K _BackingField “：[{” K_ BackingField “：{” K _BackingField “：” 1" ， “K_ BackingField”： “1”}， “K _BackingField” ：“1”}，{“k_ BackingField”：{“k _BackingField”：“2”，“k_ BackingField”：“2”}，“k _BackingField”：“2”}]，“k__BackingField” ：空}]}

要改变它，你可以标记与DataContract和所有数据契约数据成员属性：如您在给我们

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

在这种情况下，它会明白JSON该问题将会成功处理。