HandleError属性中的意外异常处理

Question

详细

我正在尝试使用内置错误处理属性HandleError来处理错误。它按预期处理错误，只是通过抛出错误消息知道错误但是然后发生错误，这不是期望的，并且没有处理它发送默认错误消息。而不是它我想在未处理的异常发生时显示一个通用消息。

码

[HandleError]
public async Task<ActionResult> Index(string operation, string returnUrl, string salt, string sig, string userId, string productId, string subscriptionId)
        {
            throw new Exception("Test Error");
            if (Request.QueryString.Count == 0) return Redirect("/Portal"); //RedirectToAction("Index", "Error", new { message = "Forbidden" });

            var url = Request.UrlReferrer;
            //TODO: move these to settings store (Configuration) Configuration should be based on per sender (Referrer)

            if (operation.ToLowerInvariant() == "signin" || operation.ToLowerInvariant() == "subscribe")
            {
                var signature = productId == null ? "\n" + returnUrl : "\n" + productId + "\n" + userId;
                var check = _apimHandler.CheckHash(salt + signature, sig, _delegationValidationKey);
                if (!check)
                {
                    return new HttpStatusCodeResult(HttpStatusCode.ExpectationFailed, "Invalid Token");
                }
            }
}

处理了错误

Unhandle Error