統一的mvc異常處理

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mvc異常處理

using System;using System.Configuration;using System.Web.Mvc;using Infrastructure.Exceptions;using log4net;namespace Infrastructure.Web.ActionFilters{    /// <summary>    /// 統一處理Mvc網站異常過濾器    /// </summary>    public class UnifyMvcSiteHandleErrorAttribute: HandleErrorAttribute    {        private static readonly ILog Log = LogManager.GetLogger(typeof(UnifyMvcSiteHandleErrorAttribute));        public readonly string BootStrapError = "~/Views/Shared/BootStrapError.cshtml";        public MVCResultType MVCResultType { set; get; }        public override void OnException(ExceptionContext filterContext)        {            if (filterContext == null || filterContext.ExceptionHandled)                return;            Log.Error(filterContext.Exception.GetFriendlyMessage(),filterContext.Exception);            if (filterContext.RequestContext.HttpContext.Request.IsAjaxRequest())            {                HandleAjaxRequestError(filterContext);            }            else if(filterContext.Exception.IsTipException())            {                HandleRequestWithTipException(filterContext);            }            base.OnException(filterContext);        }        /// <summary>        /// 處理Ajax請求產生的錯誤        /// </summary>        /// <param name="filterContext"></param>        private void HandleAjaxRequestError(ExceptionContext filterContext)        {            var message = GetMessage(filterContext.Exception);            filterContext.Result = BuildActionResultWithErrorMessage(filterContext, message);            filterContext.HttpContext.Response.StatusCode = 200;            filterContext.ExceptionHandled = true;        }        /// <summary>        /// 構建包含錯誤資訊的動作結果        /// </summary>        /// <param name="filterContext"></param>        /// <param name="message"></param>        /// <returns></returns>        private ActionResult BuildActionResultWithErrorMessage(ExceptionContext filterContext, string message)        {            var actionName = (string) filterContext.RouteData.Values["action"];            if (MVCResultType == MVCResultType.PartialHtml || actionName.EndsWith("Partial"))            {                return new ContentResult() {Content = message};            }            if (MVCResultType == MVCResultType.BootStrapModal)            {                return new PartialViewResult()                {                    ViewName = BootStrapError,                    ViewData = new ViewDataDictionary<string>(message)                };            }            return new JsonResult()            {                Data = new {success = false, message, flag = false, msg = message},                JsonRequestBehavior = JsonRequestBehavior.AllowGet            };        }        /// <summary>        /// 擷取提示資訊        /// </summary>        /// <param name="exception"></param>        /// <returns></returns>        private string GetMessage(Exception exception)        {            if (exception.IsTipException())            {                return GetTipMessage(exception);            }            if (ConfigurationManager.AppSettings["HideErrorToUser"] == "true")            {                return "Web內部異常，請聯絡系統管理員。";            }            return exception.GetFriendlyMessage();        }        /// <summary>        /// 處理出現提示類異常的請求        /// </summary>        /// <param name="filterContext"></param>        private void HandleRequestWithTipException(ExceptionContext filterContext)        {            var tipMessage = GetTipMessage(filterContext.Exception);            filterContext.Result = new ViewResult()            {                ViewName = "Tip",                MasterName = string.Empty,                ViewData = new ViewDataDictionary<string>(tipMessage)            };            filterContext.ExceptionHandled = true;            filterContext.HttpContext.Response.Clear();            filterContext.HttpContext.Response.StatusCode = 500;            filterContext.HttpContext.Response.TrySkipIisCustomErrors = true;        }        private string GetTipMessage(Exception exception)        {            if (exception is System.Web.HttpRequestValidationException)            {                return "請您輸入合法字元。";            }            if (exception is TipInfoException)            {                return exception.Message;            }            return null;        }    }    /// <summary>    /// MVC動作結果類型    /// </summary>    public enum MVCResultType    {        /// <summary>        /// 沒有指定        /// </summary>        NotSpecify = 0,        /// <summary>        /// Html片段        /// </summary>        PartialHtml = 1,        /// <summary>        /// 彈出框        /// </summary>        BootStrapModal = 2    }}

 

統一的mvc異常處理