您可以使用InvalidModelStateResult的ExecuteAsync方法(ApiController的BadRequest()方法的返回类型)来实现所需的输出,该方法实际上序列化了ModelState.
因此,我们的想法是创建一个新类,该类扩展InvalidModelStateResult并覆盖ExecuteAsync方法以更改状态代码.
public class ModelStateResult : InvalidModelStateResult
{
private readonly HttpStatusCode _status;
public ModelStateResult(ModelStateDictionary modelState, ApiController controller, HttpStatusCode status) : base(modelState, controller)
{
_status = status;
}
public override Task ExecuteAsync(CancellationToken cancellationToken)
{
var response = base.ExecuteAsync(cancellationToken).Result;
response.StatusCode = _status;
return Task.FromResult(response);
}
}
使用它像：
return new ModelStateResult(ModelState, this, HttpStatusCode.Forbidden); //this refers to ApiController here
我认为这只是一个解决方法,希望有人发布更好的方法来实现它.
编辑：
不使用InvalidModelStateResult：
public class ModelStateResult : IHttpActionResult
{
public HttpStatusCode Status { get; }
public ModelStateDictionary ModelState { get; }
public HttpRequestMessage Request { get; }
public ModelStateResult(HttpStatusCode status, ModelStateDictionary modelState, HttpRequestMessage request)
{
Status = status;
ModelState = modelState;
Request = request;
}
public Task ExecuteAsync(CancellationToken cancellationToken)
{
var response = Request.CreateErrorResponse(Status, ModelState);
return Task.FromResult(response);
}
}
