ASP.Net MVC使用错误处理措施筛选器属性

问题描述

我想实现错误使用Action过滤器属性的处理按照ScottGu的的

I am trying to implement Error handling using Action Filters Attributes as per ScottGu's blog

我的code是如下：

[HandleError]
[HandleError(ExceptionType = typeof(NullReferenceException), View = "CustomError")]
public class ArticlesController : Controller
{
    public object OhDearACrash()
    {
        throw new Exception("Oh Dear");
    }

    public object NullRefCrash()
    {
        throw new NullReferenceException();
    }

我遇到了在那里我从来没有能够作为我收到一个异常时，抛出异常击中CustomError查看问题

I am encountering an issue where I am never able to hit the CustomError view as I receive an exception when the exception is thrown

OhDearACrash：异常是由用户code

OhDearACrash: Exception was unhandled by user code

NullRefCrash：NullReferenceException异常是由用户code

NullRefCrash: NullReferenceException was unhandled by user code

等未处理的异常是由默认拿起[的HandleError]查看哪些路由/共享/ Error.aspx它处理错误。

and so the unhandled exception is picked up by the Default [HandleError] which routes to View/Shared/Error.aspx which handles the error.

我如何处理未处理的异常？

How do I handle the unhandled exception?

推荐答案

动作过滤器逐一执行。在你的情况，问题很可能是通用的HandleError行为过滤器是具体的人之前执行。

The action filters are executed one by one. In your case, the problem is probably that the generic HandleError action filter is executed before the specific one.

您可以通过设置过滤器作用的秩序属性影响执行的顺序：

You can influence the order of execution by setting the 'Order' property of your action filter:

[HandleError(Order = 2)]
[HandleError(Order = 1, ExceptionType = typeof(NullReferenceException), View = "CustomError")]
public class ArticlesController : Controller
{
}

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