反序列化通用<T>

Question

我致力于从API获得一致的响应。我包裹经由API控制器操作方法发送

public IHttpActionResult Validate([FromBody] PortalLoginDTO logindDTO) 
{ 
    IHttpActionResult response = null; 
    ApiResponseDTO<AppUserDTO> responseData = null; 

    var user = _userservice.GetUserByName(logindDTO.Username); 
    responseData = new ApiResponseDTO<AppUserDTO>(user, 200); 
    response = new ApiResponseActionResult<ApiResponseDTO<AppUserDTO>>(responseData, 200); 

    return response; 
} 

响应类所需的对象/在ApiResponsDTO实体在API

public class ApiResponseDTO<T> 
{ 
    private T _value; 

    [DataMember] 
    public string Version { private set { } get { return "1.2.3"; ; } } 

    [DataMember] 
    public double StatusCode { get; set; } 

    [DataMember] 
    public List<string> ErrorMessages { get; set; } 

    [DataMember] 
    public T Result { private set { } get { return _value; } } 
    public ApiResponseDTO() 
    { 
     ErrorMessages = new List<string>(); 
    } 
    public ApiResponseDTO(T value, double statusCode) 
    { 
     StatusCode = (int)statusCode; 
     _value = value; 
     ErrorMessages = new List<string>(); 
    } 
} 

在上述类的结果字段我想发送另一个请求的对象/类

请求的类

[DataContract] 
public partial class AppUserDTO 
{ 
    public AppUserDTO() 
    { 

    } 
    [DataMember] 
    public int UserId { get; set; } 
    [DataMember] 
    public string Username { get; set; } 
    [DataMember] 
    public Nullable<int> TitleId { get; set; } 
    [DataMember] 
    public string FirstName { get; set; } 
    [DataMember] 
    public string Surname { get; set; } 
    [DataMember] 
    public bool IsActive { get; set; } 
    [DataMember] 
    public string PasswordEncoded { get; set; } 

} 

在客户端MVC应用程序，我使用javascriptserializer

var responsedatda = serializer.Deserialize<ApiResponseDTO<AppUserDTO>>(response.Content.ReadAsStringAsync().Result); 

我得到了ApiResponseDTO但请求的类没有被序列化为图像Response in client side

中看到的是，我没有得到嵌套的原因API响应中的UserDTO。

Answer 1

串行器需要能够设定结果的潜在价值，但你的代码...

public T Result { private set { } get { return _value; } } 

...不允许作为串行使用默认的构造函数的类。

您需要更新Result财产...

public T Result { 
    get { return _value; } 
    set { _value = value; } 
} 

，或者你可以重构类...

public class ApiResponseDTO<T> { 

    [DataMember] 
    public string Version { get { return "1.2.3"; } } 

    [DataMember] 
    public double StatusCode { get; set; } 

    [DataMember] 
    public List<string> ErrorMessages { get; set; } 

    [DataMember] 
    public T Result { get; set; } 

    public ApiResponseDTO() 
    { 
     ErrorMessages = new List<string>(); 
    } 

    public ApiResponseDTO(T value, double statusCode) 
    { 
     StatusCode = (int)statusCode; 
     Result = value; 
     ErrorMessages = new List<string>(); 
    } 
} 

Answer 2

约只读一般属性系列化好文章： https://blogs.msdn.microsoft.com/darrylru/2011/05/04/datacontract-serialization-with-generics-read-only-properties/