返回HttpResponseMessage的方法 - 如何返回Exception,这可能吗?

时间:2014-03-13 15:27:28

标签: c# http exception asp.net-web-api httpresponse

我正在使用ASP.NET WebAPI2。这是我的代码:

[HttpPost]
    public HttpResponseMessage SaveNewPdf(HttpRequestMessage req)
            {
                var json = req.Content.ReadAsStringAsync().Result;
                NewFile newFile = JsonConvert.DeserializeObject<NewFile>(json);
                string error = string.Empty;

                // check all the foreign key values to ensure they are valid
                var isArticleCategoryValid = HelperClasses.ForeignKeyChecks.IsArticleCategoryValid(newFile.ArticleCategory);
                var isDocumentTypeValid = HelperClasses.ForeignKeyChecks.IsDocumentTypeValid(newFile.DocumentType);
                var isActionPublisherValid = HelperClasses.ForeignKeyChecks.IsActionPublisherValid(newFile.ActionPublisher);
                var isRuleComplianceValid = HelperClasses.ForeignKeyChecks.IsRuleComplianceValid(newFile.RuleCompliance);

                if (!isArticleCategoryValid)
                {
                    error = "articleCategory in the JSON is not a valid Article Category";
                    return new HttpResponseException();
                }
    }

我想做一些如上所示的事情 - 返回一个表示错误的异常。我知道我可以返回一个HttpResponseMessage,其状态代码是我想要的,但我想返回一个Exception。我知道HttpResponseException,但这需要一个HttpResponseMessage,所以我回到原点。是否可以返回异常?

1 个答案:

答案 0 :(得分:5)

您需要使用正确创建的ErrorResponse抛出HttpResponseException,如下所示:

throw new HttpResponseException(Request.CreateErrorResponse(
    HttpStatusCode.BadRequest, // Use the right status code
    "OMG, I like totally FAILED."));