c# - 如何在 ASP.NET MVC 中获取错误状态代码

Question

我正在使用 ASP.NET MVC 和下面的代码来返回异常描述并将其存储在 session 中。我需要帮助找出异常的错误代码，如 500、403、404 等。我该怎么做？

这就是我在 session 中存储错误消息的方式:

System.Web.HttpContext.Current.Session["errorMessage"] = filterContext.Exception.Message.ToString();

public override void OnException(System.Web.Mvc.ExceptionContext filterContext)
{
    ProcessResult processResult = new ProcessResult();

    // If the exception is already handled, we do nothing
    if (filterContext.ExceptionHandled)
    {
        return;
    }
    else
    {
        var controllerName = (string)filterContext.RouteData.Values["controller"];
        var actionName = (string)filterContext.RouteData.Values["action"];
        var model = new HandleErrorInfo(filterContext.Exception, controllerName, actionName);
        processResult.Controller = controllerName;
        processResult.Action = actionName;
        processResult.ExceptionMessage = filterContext.Exception.Message;
        System.Web.HttpContext.Current.Session["errorMessage"] = filterContext.Exception.Message.ToString();
        processResult.StackTrace = filterContext.Exception.StackTrace;
        processResult.Source = filterContext.Exception.Source;
    }
    // Mark the exception as handled
    filterContext.ExceptionHandled = true;
}

Answer 1

检查异常是否为 HttpException。然后照原样转换并获取状态代码。

if (filterContext.Exception is HttpException)
{
    var statusCode = ((HttpException)filterContext.Exception).GetHttpCode();
}