爲什麼我的JSon在子數組上給我空值？

Question

我一直有一個可怕的時間試圖讓一個傳入的Json消息序列化（和反序列化正確）。首先是我通過POSTMAN發佈到MVC休息服務的傳入Json。通過JsonLint進行驗證。主要問題是兩個子數組，account和propertyValues都是空的。 serviceAddresses是profilePush的一個數組成員，它的其他屬性正在填充。在我將它們全部納入DataContracts之前，我獲得了serviceAddresses的空值。我在這裏錯過了什麼？

------------傳入JSON ------------------

{ 
    "userId" : 15, 
    "firstName" : "Michael", 
    "lastName" : "Smith", 
    "email" : "msmith@google.org", 
    "deleted" : false, 
    "serviceAddresses" : [ { 
    "addressId" : 18, 
    "address1" : "8401 Lorain Road", 
    "address2" : "Suite 10A", 
    "city" : "Newton Falls", 
    "state" : "OH", 
    "zip" : "44021", 
    "deleted" : false, 
    "accounts" : [], 
    "propertyAttributes" : { 
     "attr_name" : "heat_type", 
     "attr_value" : "Gas", 
     "attr_name" : "hot_water_heater_type", 
     "attr_value" : "Gas", 
     "attr_name" : "rent_own", 
     "attr_value" : "Own", 
     "attr_name" : "sq_ft", 
     "attr_value" : "2000", 
     "attr_name" : "stove_type", 
     "attr_value" : "Gas" 
          } 
         } 
    ] 
    } 





    [HttpPost] 
    public JsonResult profileInformationPush(profilePush profile) 
    { 
      bool bError = false; 

      string s = JsonConvert.SerializeObject(profile); 

      profilePush deserializedProfile = 
      JsonConvert.DeserializeObject<profilePush>(s); 

    } 

------- - 這是什麼「個人資料」的模樣進來的程序--------------

{"UserId":15,"FirstName":"Michael","LastName":"Smith","Email":"msmith@google.org","Deleted":"False","ServiceAdresses":[{"AddressId":18,"Address1":"8401 Lorain Road","Address2":"Suite 10A","City":"Newton Falls","State":"OH","Zip":"44021","Deleted":"False","Accounts":null,"PropertyAttributes":null}]} 


--------------Data Contracts --------------------- 



    [DataContract] 
     public class accountInfo 
     { 
      [DataMember(Name="accountNumber", EmitDefaultValue = false)] 
      public string AccountNumber { get; set; } 
      [DataMember(Name="deleted", EmitDefaultValue = false)] 
      public string Deleted { get; set; } 
     } 



    [DataContract] 
    public class PropertyAttributes 
    { 
     [DataMember(Name="attr_name", EmitDefaultValue = false)] 
     public string Attr_Name { get; set; } 
     [DataMember(Name="attr_value", EmitDefaultValue = false)] 
     public string Attr_Value { get; set; } 

    } 

    [DataContract] 
    public class ServiceAddresses 
    { 
     [DataMember(Name="addressId", EmitDefaultValue = false)] 
     public int AddressId { get; set; } 
     [DataMember(Name="address1", EmitDefaultValue = false)] 
     public string Address1 { get; set; } 
     [DataMember(Name="address2", EmitDefaultValue= false)] 
     public string Address2 { get; set; } 
     [DataMember(Name="city", EmitDefaultValue = false)] 
     public string City { get; set; } 
     [DataMember(Name="state", EmitDefaultValue = false)] 
     public string State { get; set; } 
     [DataMember(Name="zip", EmitDefaultValue = false)] 
     public string Zip { get; set; } 
     [DataMember(Name="deleted", EmitDefaultValue = false)] 
     public string Deleted { get; set; } 
     [DataMember(Name="accounts", EmitDefaultValue = false)] 
     public accountInfo[] Accounts { get; set; } 

     [DataMember(Name = "propertyAttributes", EmitDefaultValue = false)] 
     public PropertyAttributes[] PropertyAttributes { get; set; } 
    } 

    [DataContract] 
    public class profilePush 
    { 
     [DataMember(Name="userId", EmitDefaultValue= false)] 
     public int UserId { get; set; } 
     [DataMember(Name="firstName", EmitDefaultValue = false)] 
     public string FirstName { get; set; } 
     [DataMember(Name="lastName", EmitDefaultValue = false)] 
     public string LastName { get; set; } 
     [DataMember(Name="email", EmitDefaultValue = false)] 
     public string Email { get; set; } 
     [DataMember(Name="deleted", EmitDefaultValue = false)] 
     public string Deleted { get; set; } 
     [DataMember(Name="serviceAddresses", EmitDefaultValue = false)] 
     public ServiceAddresses[] ServiceAddresses { get; set; } 
    } 

Answer 1

問題是這樣的JSON：

"propertyAttributes" : { 
    "attr_name" : "heat_type", 
    "attr_value" : "Gas", 
    "attr_name" : "hot_water_heater_type", 
    "attr_value" : "Gas", 
    "attr_name" : "rent_own", 
    "attr_value" : "Own", 
    "attr_name" : "sq_ft", 
    "attr_value" : "2000", 
    "attr_name" : "stove_type", 
    "attr_value" : "Gas" 
} 

和你結構：

[DataMember(Name = "propertyAttributes", EmitDefaultValue = false)] 
    public PropertyAttributes[] PropertyAttributes { get; set; } 

他們不適合。根據你的JSON propertyAttributes是object，而不是array。而且由於json反序列化器需要一個數組但是得到一個對象，它不能填充你的屬性，而你得到空值。

你確定這是你得到的JSON嗎？它甚至不是有效的，因爲屬性名稱在一個對象內多次使用。這將是正確的：

"propertyAttributes": [ 
    { 
     "attr_name": "heat_type", 
     "attr_value": "Gas" 
    }, { 
     "attr_name": "hot_water_heater_type", 
     "attr_value": "Gas" 
    } 
] 

在這裏，你得到的每個對象{..}數組[...]與屬性attr_name和財產attr_value。