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今天在处理mvc 项目404和500页面时，发现我以前比较喜欢用的Return HttpNotFound()没有跳转到我在webconfig中配置的自定义404页面，而且也不会去执行Global中的Application_Error方法，经过一番查阅资料，发现这个问题得去想别的办法去做，具体的做法有三种，如下：
1.放弃Return HttpNotFound()，适用throw new HttpException(404, "page not found");
2.让所有的Controller继承自BaseController,然后BaseController重写HttpNotFound方法，代码如下：
protected override HttpNotFoundResult HttpNotFound(string statusDescription) { this.Response.StatusCode = 404; this.Response.TrySkipIisCustomErrors = true; Response.Clear(); Response.Redirect("~/FileNotFound.html"); Response.End(); return null; }
3.使用Fliter来处理异常，代码如下；
public class CustomViewForHttpStatusResultFilter : IResultFilter, IExceptionFilter { string viewName; int statusCode; #region Ctor public CustomViewForHttpStatusResultFilter(HttpStatusCodeResult prototype, string viewName) : this(prototype.StatusCode, viewName) { } public CustomViewForHttpStatusResultFilter(int statusCode, string viewName) { this.viewName = viewName; this.statusCode = statusCode; } #endregion public void OnResultExecuted(ResultExecutedContext filterContext) { HttpStatusCodeResult httpStatusCodeResult = filterContext.Result as HttpStatusCodeResult; //比较重要的一句，当请求完成后，发现 if (httpStatusCodeResult != null && httpStatusCodeResult.StatusCode == statusCode) { ExecuteCustomViewResult(filterContext.Controller.ControllerContext); } } public void OnResultExecuting(ResultExecutingContext filterContext) { } public void OnException(ExceptionContext filterContext) { HttpException httpException = filterContext.Exception as HttpException; if (httpException != null && httpException.GetHttpCode() == statusCode) { ExecuteCustomViewResult(filterContext.Controller.ControllerContext); // This causes ELMAH not to log exceptions, so commented out //filterContext.ExceptionHandled = true; } } void ExecuteCustomViewResult(ControllerContext controllerContext) { ViewResult viewResult = new ViewResult(); viewResult.ViewName = viewName; viewResult.ViewData = controllerContext.Controller.ViewData; viewResult.TempData = controllerContext.Controller.TempData; viewResult.ExecuteResult(controllerContext); controllerContext.HttpContext.Response.TrySkipIisCustomErrors = true; } }
Asp.net MVC 自定义错误页面以及return HttpNotFound遇到的问题
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原文地址：http://www.cnblogs.com/baiyunchen/p/4888579.html
