我在处理 MVC 中的错误时遇到问题。我的目标是在标题中显示“友好”错误消息,但应用程序应该已经可见。我在基本控制器方法上使用覆盖 OnException,如下所示:
protected override void OnException(ExceptionContext filterContext)
{
if (filterContext.ExceptionHandled)
return;
var error = new ErrorModel(filterContext.Exception);
error.ActionName = filterContext.RouteData.Values["action"].ToString();
error.ControllerName = filterContext.RouteData.Values["controller"].ToString();
filterContext.Controller.TempData["ErrorInfo"] = error;
filterContext.HttpContext.Response.Clear();
filterContext.HttpContext.Response.StatusCode = 500;
filterContext.ExceptionHandled = true;
filterContext.Result = this.RedirectToAction(actionName: "DisplayError", controllerName: "Error");
//base.OnException(filterContext);
}
ErrorModel 是 HandleErrorInfo 的平面副本,因为所有操作都需要序列化。
在 ErrorController 中,我从 TempData 检索我的模型
public ActionResult DisplayError()
{
var error = TempData["ErrorInfo"] as ErrorModel;
ControllerContext.HttpContext.Response.StatusCode = 500;
return PartialView("Error", error);
}
我称我的观点
@using log4net;
@model Easily.MVC.Utils.ErrorModel
@{
ViewBag.Title = "Error";
}
<link href="@string.Format("http://{0}/easily.Ressources.Web/css/easilyCommon.min.css", System.Configuration.ConfigurationManager.AppSettings["EasilyServerName"])" rel="stylesheet" type="text/css" />
<link href="@Url.Content("~/Content/custom.css")?v=@Html.Action("GetVersion", "Main")" rel="stylesheet" type="text/css" />
<link href="@Url.Content("~/Content/Worklist.css")?v=@Html.Action("GetVersion", "Main")" rel="stylesheet" type="text/css" />
<link href="@Url.Content("~/Content/jquery.contextMenu.css")?v=@Html.Action("GetVersion", "Main")" rel="stylesheet" type="text/css" />
<script type="text/javascript"> window['currentPath'] = '@Url.Content("~/")'; </script>
<script src="@string.Format("http://{0}/easily.Ressources.Web/js/easilyCommon.min.js", System.Configuration.ConfigurationManager.AppSettings["EasilyServerName"])" type="text/javascript"></script>
<fieldset class="divError">
@if (ViewBag != null && ViewBag.Message != null)
{
<legend title="Erreur Easily.MVC" class="legendError">Une erreur s'est produite</legend>@*
<span>Erreur Easily.MVC</span>*@
}
@if (Model != null /*&& HttpContext.Current.IsDebuggingEnabled*/)
{
<legend title="Erreur @Model.Exception.Message" class="legendError">Une erreur s'est produite</legend>@*
<span>Erreur @Model.Exception.Message</span>*@
}
<div class="detailError">
<h3>Detail de l'erreur</h3>
<div class="list-sfs-holder msgError">
@if (ViewBag != null && ViewBag.Message != null)
{
<div class="alert alert-error">@ViewBag.Message</div>
}
@if (Model != null /*&& HttpContext.Current.IsDebuggingEnabled*/)
{
<div>
<p>
<b>Exception:</b> @Model.Exception.Message<br />
<b>Controller:</b> @Model.ControllerName<br />
<b>Action:</b> @Model.ActionName
</p>
<hr />
<p>
<b>StackTrace:</b>
</p>
<div style="overflow: scroll; width: 980px;">
<pre>
@Model.Exception.StackTrace
</pre>
</div>
</div>
}
</div>
</div>
</fieldset>
@{
ILog log = LogManager.GetLogger("WorkListError");
if (ViewBag != null && ViewBag.Message != null)
{
log.Error("ViewBag.Message:" + @ViewBag.Message);
}
if (Model != null && HttpContext.Current.IsDebuggingEnabled)
{
log.Error("Exception:" + Model.Exception.Message + "|" +
"Controller:" + Model.ControllerName + "|" +
"Action:" + Model.ActionName + "|" +
"StackTrace:" + Model.Exception.StackTrace
);
}
}
<script>
$(document).ready(function () {
$(".detailError").accordion({ collapsible: true, active: false, heightStyle: "content", width: '980px' });
});
</script>
至少,对于 AJAX 错误,我使用这个脚本:
$(document).ajaxError(function (event, jqxhr, settings, exception) {
$("#error_content").html(jqxhr.responseText);
});
使用此代码,结果是我的目标@ localhost。但是当我在测试服务器上部署它时,我有服务器消息错误 500 而不是我的错误视图。那么如何修改代码以避免错误 500 并在自定义显示中捕获错误(服务器无法修改,但我可以使用 web.config)?如果我评论 ControllerContext.HttpContext.Response.StatusCode = 500; 在 DisplayError 中,未捕获 Ajax 错误。
谢谢你的帮助。