ASP NET MVC 4.自定义异常过滤器中的RedirectToRouteResult

Question

我有一个自定义异常过滤器属性：

 public class RedirectOnErrorAttribute : FilterAttribute, IExceptionFilter {

        #region IExceptionFilter Members

        public void OnException(ExceptionContext filterContext) {
            if(filterContext.ExceptionHandled) return;

            filterContext.Controller.TempData["Exception"] = filterContext.Exception;
            filterContext.Result = new RedirectToRouteResult(new RouteValueDictionary(new {area = "Desktop", controller = "Exception", action = "HandleError" }));
            filterContext.ExceptionHandled = true;
            filterContext.HttpContext.Response.Clear();
            filterContext.HttpContext.Response.StatusCode = 500;
            filterContext.HttpContext.Response.TrySkipIisCustomErrors = true;
        }

        #endregion
    }

'ExceptionController'的Action'HandleError'包含一些业务逻辑 在'HandleError'动作中

public ActionResult HandleError() {
        Exception ex = (Exception)TempData["Exception"];
        logger.Log(ex);
}

在ex变量中，我总是得到异常消息'错误执行处理程序的子请求'System.Web.Mvc.HttpHandlerUtil + ServerExecuteHttpHandlerAsyncWrapper'。'
如何解决我的问题？

Answer 1

您可以尝试查看ex.InnerException。如果它不为null，则可能包含更多有用的信息。