从其他API控制器调用时，Web API请求为null

Question

我有2个Web API控制器： 1. Runtime1Controller 2. Runtime2Controller

在Runtime2Controller中：

 public HttpResponseMessage PostCreateRequest(KeyRequest keyRequest)
    {
        try
        {
            Runtime1Controller runtime1Controller = new Runtime1Controller();
            HttpResponseMessage response = runtime1Controller.PostCreateRequest(keyRequest);

            response.Content.Headers.ContentType = new MediaTypeHeaderValue("text/html");

            return response;
        }
        catch(Exception ex)
        {
            throw;
        }
    }

在Runtime1Controller中，我返回HttpResponse消息：

public HttpResponseMessage PostCreateRequest(KeyRequest keyRequest)
{
    // Process Data .....
    Request.CreateResponse(HttpStatusCode.Created, keyRequest);
}

然后，为什么所有时间请求为NULL。如果我直接调用Runtime1Controller PostCreateRequest，它不是NULL。为什么SO ???

Answer 1

在Runtime1Controller中，在创建响应时使用return（或者你可能不用这个部分）：

public HttpResponseMessage PostCreateRequest(KeyRequest keyRequest)
{
    // Process Data .....
    return Request.CreateResponse(HttpStatusCode.Created, keyRequest);
}