OnActionExecuting 事件未返回 jsonResult

Question

我创建了一个 ActionFilterAttribute，用于在允许处理 MVC 控制器 get/post 请求之前验证帐户是否可用于处理。如果该帐户不可用，我想 return 给客户一个错误。如果请求是 ajax post 我想在响应中包含 json 数据。出于某种原因，当浏览器和网站运行在同一台机器上时，json 数据只会 return 发送到浏览器。如果我在另一台机器上浏览网站并执行 ajax post 响应内容类型 returned 为 "text/html"。但是，如果浏览器运行与网站位于同一台计算机上，则响应 Content-Type 会被正确地 return 编辑为 "application/json"。

我做错了什么？

ActionFilterAttribute

public override void OnActionExecuting(ActionExecutingContext filterContext)
{
    base.OnActionExecuting(filterContext);

    if (filterContext.Result == null)
    {
        if (IsAccountUnavailable(Key))
        {
            if (filterContext.HttpContext.Request.IsAjaxRequest())
            {
                filterContext.HttpContext.Response.StatusCode = (int)HttpStatusCode.Conflict;
                filterContext.HttpContext.Response.ContentType = "application/json";
                filterContext.Result = new JsonResult
                {
                    Data = new {Error = "Unavailable", Url = GetLogOffUrl()},
                    JsonRequestBehavior = JsonRequestBehavior.AllowGet
                };
            }
          else
                filterContext.Result = new RedirectResult(GetLogOffUrl());
        }
    }
}

jQuery ajax post

$.ajax({
    url: window.location.href,
    type: 'POST',
    data: JSON.stringify(ko.mapping.toJS(serverModel.SelectionsViewModel)),
    contentType: "application/json; charset=utf-8",
    dataType: 'json'
})
    .done(function (data) {
        if (data.isValid)
            window.location.href = serverModel.NextView();
        else
            showGenericSaveError();
    })
    .fail(function (jqXhr) {
        handleAjaxError(jqXhr);
    });
};

Answer 1

感谢发现以下问题的同事 post 我的问题已经解决。我需要设置 Response.TrySkipIisCustomErrors = true

工作代码...

public override void OnActionExecuting(ActionExecutingContext filterContext)
{
    base.OnActionExecuting(filterContext);

    if (filterContext.Result == null)
    {
        if (QuoteServiceLayer.IsAccountUnavailable(AccountKey, EnrollmentPeriodType, EmployeeKey))
        {
            if (filterContext.HttpContext.Request.IsAjaxRequest())
            {
                filterContext.HttpContext.Response.StatusCode = (int)HttpStatusCode.Conflict;
                filterContext.HttpContext.Response.TrySkipIisCustomErrors = true;
                filterContext.Result = new JsonResult
                {
                    Data = new {Error = "Unavailable", Url = GetLogOffUrl()},
                    JsonRequestBehavior = JsonRequestBehavior.AllowGet
                };
            }
        else
            filterContext.Result = new RedirectResult(GetLogOffUrl());
        }
    }
}

OnActionExecuting 事件未返回 jsonResult

jsonResult not returned by OnActionExecuting event

ajax

jquery

json

asp.net-mvc-5