Question

您好我最近发现我可以构建一个请求类，这样在控制器参数中我不需要有多个[FromHeader]参数和一个[FromBody]参数。相反，我在下面创建了一个类RequestForController。目前，要将请求类转换为实体类，我需要创建一个指定目标和源的所有成员的映射。如果合同/实体发生变化，那么我需要在两个类以及automapper配置中更改它。我的目标是配置automapper，以便在合同/实体更改时不需要维护automapper配置。我在下面发布了我的设置示例

// Source class Body Members
public class RequestBody
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

// Source class Headers
public class RequestHeaders
{
    [FromHeader]
    public string SomeHeader { get; set; }
}

// Source Class
public class RequestForController
{
    public RequestHeaders Headers { get; set; }

    [FromBody, Required(ErrorMessage = "Request Body is missing")]
    public RequestBody Body { get; set; }
}

// Destination class
public class EntityModel
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string SomeHeader { get; set; }
}

// AutoMapper Configuration in Startup.cs
CreateMap<RequestForController, EntityModel>()
    .ForMember(dest => dest.FirstName, opt => opt.MapFrom(src => src.Body.FirstName))
    .ForMember(dest => dest.LastName, opt => opt.MapFrom(src => src.Body.LastName))
    .ForMember(dest => dest.SomeHeader, opt => opt.MapFrom(src => src.Headers.SomeHeader));

// Controller Function
public async Task<IActionResult> ApiEndpoint(RequestForController request)
{
    // do validation
    var entity = Mapper.Map<EntityModel>(request);
    // do work
    return Ok();
}

如何使用automapper将具有嵌套成员的源类映射到没有嵌套成员的目标

0 个答案: