public virtual void OnException(ExceptionContext filterContext){if (filterContext == null){throw new ArgumentNullException("filterContext");}if (filterContext.IsChildAction){return;}// If custom errors are disabled, we need to let the normal ASP.NET exception handler// execute so that the user can see useful debugging information.if (filterContext.ExceptionHandled || !filterContext.HttpContext.IsCustomErrorEnabled){return;}Exception exception = filterContext.Exception;// If this is not an HTTP 500 (for example, if somebody throws an HTTP 404 from an action method),// ignore it.if (new HttpException(null, exception).GetHttpCode() != 500){return;}if (!ExceptionType.IsInstanceOfType(exception)){return;}string controllerName = (string)filterContext.RouteData.Values["controller"];string actionName = (string)filterContext.RouteData.Values["action"];HandleErrorInfo model = new HandleErrorInfo(filterContext.Exception, controllerName, actionName);filterContext.Result = new ViewResult{ViewName = View,MasterName = Master,ViewData = new ViewDataDictionary<HandleErrorInfo>(model),TempData = filterContext.Controller.TempData};filterContext.ExceptionHandled = true;filterContext.HttpContext.Response.Clear();filterContext.HttpContext.Response.StatusCode = 500;// Certain versions of IIS will sometimes use their own error page when// they detect a server error. Setting this property indicates that we// want it to try to render ASP.NET MVC's error page instead.filterContext.HttpContext.Response.TrySkipIisCustomErrors = true;}

    public class FilterConfig{public static void RegisterGlobalFilters(GlobalFilterCollection filters){//filters.Add(new HandleErrorAttribute());
        }}

1. <customErrors mode="On" defaultRedirect="GenericErrorPage.htm">
2. <error statusCode="403" redirect="403.htm" />
3. <error statusCode="404" redirect="404.htm" />
4. </customErrors>

1. public class UtilityController : Controller
2. {
3. public ActionResult Error()
4. {
5. return View();
6. }
7. public ActionResult PageNotFound()
8. {
9. return View();
10. }
11. }

1. {
2. var ex = Server.GetLastError();
3. Log.Error(ex); //记录日志信息
4. var httpStatusCode = (ex is HttpException) ? (ex as HttpException).GetHttpCode() : 500; //这里仅仅区分两种错误
5. var httpContext = ((MvcApplication)sender).Context;
6. httpContext.ClearError();
7. httpContext.Response.Clear();
8. httpContext.Response.StatusCode = httpStatusCode;
9. var shouldHandleException = true;
10. HandleErrorInfo errorModel;
11. var routeData = new RouteData();
12. routeData.Values["controller"] = "Utility";
13. switch (httpStatusCode)
14. {
15. case 404:
16. routeData.Values["action"] = "PageNotFound";
17. errorModel = new HandleErrorInfo(new Exception(string.Format("No page Found", httpContext.Request.UrlReferrer), ex), "Utility", "PageNotFound");
18. break;
19. default:
20. routeData.Values["action"] = "Error";
21. Exception exceptionToReplace = null; //这里使用了EntLib的异常处理模块的一些功能
22. shouldHandleException = ExceptionPolicy.HandleException(ex, "LogAndReplace", out exceptionToReplace);
23. errorModel = new HandleErrorInfo(exceptionToReplace, "Utility", "Error");
24. break;
25. }
26. if (shouldHandleException)
27. {
28. var controller = new UtilityController();
29. controller.ViewData.Model = errorModel; //通过代码路由到指定的路径
30. ((IController)controller).Execute(new RequestContext(new HttpContextWrapper(httpContext), routeData));
31. }
32. }
33. }