创建新的IHttpActionResult操作结果方法

问题描述

有没有办法使用新的IHttpActionResult接口返回HttpStatusCode.NoContent响应消息?

Is there a way I can use the new IHttpActionResult interface to return a HttpStatusCode.NoContent response message?

我当前正在使用return new HttpResponseMessage( HttpStatusCode.NoContent );并希望将其转换为return NoContent();.

I am currently using return new HttpResponseMessage( HttpStatusCode.NoContent ); and would like to convert this into return NoContent();.

IHttpActionResult已经具有Ok()，Conflict()和NotFound()，但是我找不到在我的项目中需要使用的Forbidden()和NoContent()中的任何一个.

IHttpActionResult has already got Ok(), Conflict() and NotFound() but I cannot find any for Forbidden() and NoContent() which I need to use in my project.

添加其他结果类型有多容易?

How easy is it to add other result types?

推荐答案

我发现了这个，其中显示了如何添加自定义IHttpActionResult方法，而我已经使用它创建了Forbidden()和NoContent()方法，并取得了巨大的成功.

I found this example site that shows how to add a custom IHttpActionResult method and I've used this to create the Forbidden() and NoContent() methods with great success.

public abstract class CommonApiController : ApiController
{
    public class ForbiddenResult : IHttpActionResult
    {
        private readonly HttpRequestMessage _request;
        private readonly string _reason;

        public ForbiddenResult(HttpRequestMessage request,string reason)
        {
            _request = request;
            _reason = reason;
        }

        public ForbiddenResult(HttpRequestMessage request)
        {
            _request = request;
            _reason = "Forbidden";
        }

        public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
        {
            var response = _request.CreateResponse(HttpStatusCode.Forbidden,_reason);
            return Task.FromResult(response);
        }
    }

    public class NoContentResult : IHttpActionResult
    {
        private readonly HttpRequestMessage _request;
        private readonly string _reason;

        public NoContentResult(HttpRequestMessage request,string reason)
        {
            _request = request;
            _reason = reason;
        }

        public NoContentResult(HttpRequestMessage request)
        {
            _request = request;
            _reason = "No Content";
        }

        public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
        {
            var response = _request.CreateResponse(HttpStatusCode.NoContent,_reason);
            return Task.FromResult(response);
        }
    }
}

然后我可以像这样使用它:

And then I can use it like this:

public class InvoiceController : CommonApiController
{
    public async Task<IHttpActionResult> Post([FromBody]Invoice invoice)
    {
        if(User.IsInRole("Readonly"))
        {
            return Forbidden();
        }

        // Rest of code

    }
}

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