1.cshtml页面异常
2.Controller异常
3.路由参数异常。
4.页面不存在404
页面不存在404，可以通过配置config来处理
???<customErrors mode="On"> ?????<error statusCode="404" redirect="~/Error/Page404" /> ???</customErrors>
其它的异常都可以通过HandleErrorAttribute拦截处理
???public class ErrorFilter : HandleErrorAttribute ???{ ???????public override void OnException(ExceptionContext filterContext) ???????{ ???????????string errorMsg; ???????????var exception = filterContext.Exception; ???????????errorMsg = exception.Message; ?????????????if (filterContext.RequestContext.HttpContext.Request.IsAjaxRequest()) ???????????{ ???????????????var accept = filterContext.RequestContext.HttpContext.Request.AcceptTypes; ???????????????if (accept.Contains("application/json")) ???????????????{ ???????????????????filterContext.Result = new JsonResult() { Data = new { Success = false, Msg = errorMsg } }; ???????????????} ???????????????else ???????????????{ ???????????????????filterContext.Result = new JavaScriptResult() { Script = "alert( ‘" + errorMsg + "‘);" }; ???????????????} ???????????} ???????????else ???????????{ ???????????????//普通异常 ???????????????filterContext.Result = new ViewResult() { ViewName = "/Views/Test/ErrorMsg.cshtml",ViewData = new ViewDataDictionary() { { "msg", errorMsg } } }; ???????????} ???????????filterContext.ExceptionHandled = true; ???????} ???}注册全局过滤器
???public class FilterConfig ???{ ???????public static void RegisterGlobalFilters(GlobalFilterCollection filters) ???????{ ???????????filters.Add(new ErrorFilter()); ???????} ???}MVC异常处理（异常捕获）
原文地址：http://www.cnblogs.com/lgxlsm/p/7903478.html