正在使用NLOG进行日志记录,并且在日志记录发生的地方有单独的类@ global级别。每个要求,必须在记录结束后从该类重定向到“错误”视图(RedirectToAction()
)。
但它是一个非控制器类,因此无法使用return View("Error")
或Response.Redirect()
等常用方法。
有可能做到这一点吗?我试过HttpContext.Current.Response.Redirect("/Help/Error",true);
但没有做任何事情。
Error.cshtml
Views/Shared/*
是一个简单的HTML文件,其文本类似于有一些错误...请与logging
文件夹下的管理员联系。
记录类存在于根文件夹下的Result.body
单独文件夹中。
每次调用Action方法时,如果发生任何异常,则会自动调用记录器,这会记录日志,最后应重定向到错误视图。
答案 0 :(得分:2)
您可以创建自己的基本控制器并处理onexception事件中的异常
public class BaseController : Controller
{
protected override void OnException(ExceptionContext filterContext)
{
//Do your logging
// and redirect / return error view
filterContext.ExceptionHandled = true;
// If the exception occured in an ajax call. Send a json response back
// (you need to parse this and display to user as needed at client side)
if (filterContext.HttpContext.Request.Headers["X-Requested-With"]=="XMLHttpRequest")
{
filterContext.Result = new JsonResult
{
JsonRequestBehavior = JsonRequestBehavior.AllowGet,
Data = new { Error = true, Message = filterContext.Exception.Message }
};
filterContext.HttpContext.Response.StatusCode = 500; // Set as needed
}
else
{
filterContext.Result = new ViewResult { ViewName = "Error.cshtml" };
//Assuming the view exists in the "~/Views/Shared" folder
}
}
}
现在,对于其他控制器,继承此bascontroller。
public class ProductsController : BaseController
{
public ActionResult Die()
{
throw new Exception("I lost!");
}
}
如果要对Error操作方法进行重定向(新的GET调用),可以将ViewResult替换为RedirectToRouteResult
。
filterContext.Result = new RedirectToRouteResult(new RouteValueDictionary {
{"controller", "Home"}, {"action", "Error"}
};
答案 1 :(得分:1)
您没有说明如何自动调用日志记录代码"记录器会自动调用"。所以我将推荐一个HandleErrorAttribute。这要求您在共享视图文件夹中有一个Error.cshtml,但您可以在filterContext.Result中指定一个不同的视图
public class CustomErrorAttribute : HandleErrorAttribute
{
public override void OnException(ExceptionContext filterContext)
{
filterContext.HttpContext.Response.TrySkipIisCustomErrors = true;// This causes the webconfig httpErrors section to be ignored, since we are handling the exception
filterContext.ExceptionHandled = true;
//... log error
filterContext.HttpContext.Response.ClearContent();// Removes partially rendered content
// just information to be passed in the view model, this does NOT define which view is displayed next. It tells us where the error came from.
var controllerName = (string)filterContext.RouteData.Values["controller"];
var actionName = (string)filterContext.RouteData.Values["action"];
var model = new HandleErrorInfo(filterContext.Exception, controllerName, actionName);
// This presents an error page view. By default if a View is not passed to the Attribute, then this is Error.cshtml in Shared.
filterContext.Result = new ViewResult
{
ViewName = View, // View & Master are parameters from the attribute e.g. [ErrorAttribute(View="OtherErrorView")], by default the view is the "Error.cshtml" view
MasterName = Master,
ViewData = new ViewDataDictionary<HandleErrorInfo>(model),
TempData = filterContext.Controller.TempData
};
filterContext.Exception = null;
}
}