ASP.NET MVC HandleError

我如何[HandleError]在asp.net MVC Preview 5中进行过滤？
我在我的Web.config文件中设置了customErrors

并将[HandleError]放在我的Controller类上面,如下所示:

[HandleError]
public class DSWebsiteController: Controller
{
    [snip]
    public ActionResult CrashTest()
    {
        throw new Exception("Oh Noes!");
    }
}

然后我让我的控制器从这个类继承并在它们上调用CrashTest().视觉工作室在错误时停止并按下f5继续后,我被重新路由到Error.aspx？aspxerrorpath =/sxi.mvc/CrashTest(其中sxi是所用控制器的名称.当然道路无法找到,我得到"'''应用程序中的服务器错误."404.

这个站点从预览3移植到5.除了错误处理之外,所有东西都运行(没有太多工作要移植).当我创建一个完整的新项目时,错误处理似乎有效.

想法？

- 注意 -
由于这个问题现在有超过3K的视图,我认为放入我目前使用的(ASP.NET MVC 1.0)是有益的.在mvc contrib项目中有一个名为"RescueAttribute"的出色属性你也应该检查一下;)

1> Elijah Manor..：

---

[HandleError]

当你只为你的类提供HandleError属性时(或者你的动作方法),当发生未处理的异常时,MVC将首先在Controller的View文件夹中查找名为"Error"的相应视图.如果它找不到它,那么它将继续查看共享视图文件夹(默认情况下应该包含Error.aspx文件)

[HandleError(ExceptionType = typeof(SqlException), View = "DatabaseError")]
[HandleError(ExceptionType = typeof(NullReferenceException), View = "LameErrorHandling")]

您还可以使用有关所查找的异常类型的特定信息来堆叠其他属性.此时,您可以将错误定向到默认"错误"视图以外的特定视图.

有关更多信息,请查看Scott Guthrie关于它的博客文章.

---

标志性的,这是我的"迟到总比没有好"回复你的评论:你可以改为继承HandleErrorAttribute并覆盖它的"OnException"方法:然后,插入你想要的任何记录或自定义动作.然后,您可以完全处理异常(将context.ExceptionHandled设置为true),或者将其延迟回基类自己的OnException方法.这是一篇很有帮助的文章:http://blog.dantup.me.uk/2009/04/aspnet-mvc-handleerror-attribute-custom.html

2> Corin Blaiki..：

---

还应注意,未将http错误代码设置为500的错误

(例如UnauthorizedAccessException)

HandleError过滤器不会处理.

3> 小智..：

---

将http错误代码解为500这是一个名为[ERROR]的属性,将其置于一个动作上

public class Error: System.Web.Mvc.HandleErrorAttribute
{
    public override void OnException(System.Web.Mvc.ExceptionContext filterContext)
    {

            if (filterContext.HttpContext.IsCustomErrorEnabled)
            {
                filterContext.ExceptionHandled = true;

            }
            base.OnException(filterContext);
            //OVERRIDE THE 500 ERROR  
           filterContext.HttpContext.Response.StatusCode = 200;
    }

    private static void RaiseErrorSignal(Exception e)
    {
        var context = HttpContext.Current;
      // using.Elmah.ErrorSignal.FromContext(context).Raise(e, context);
    } 

}

//例:

[Error]
[HandleError]
[PopulateSiteMap(SiteMapName="Mifel1", ViewDataKey="Mifel1")]
public class ApplicationController : Controller
{
}

4> Sandip - Ful..：

---

MVC中的属性在get和post方法的错误处理中非常有用,它还跟踪ajax调用.

在应用程序中创建一个基本控制器,并在主控制器(EmployeeController)中继承它.

public class EmployeeController:BaseController

在基本控制器中添加以下代码.

/// 

/// Base Controller
/// 
public class BaseController : Controller
{       
    protected override void OnException(ExceptionContext filterContext)
    {
        Exception ex = filterContext.Exception;

        //Save error log in file
        if (ConfigurationManager.AppSettings["SaveErrorLog"].ToString().Trim().ToUpper() == "TRUE")
        {
            SaveErrorLog(ex, filterContext);
        }

        // if the request is AJAX return JSON else view.
        if (IsAjax(filterContext))
        {
            //Because its a exception raised after ajax invocation
            //Lets return Json
            filterContext.Result = new JsonResult()
            {
                Data = Convert.ToString(filterContext.Exception),
                JsonRequestBehavior = JsonRequestBehavior.AllowGet
            };
        }
        else
        {
            filterContext.ExceptionHandled = true;
            filterContext.HttpContext.Response.Clear();

            filterContext.Result = new ViewResult()
            {
                //Error page to load
                ViewName = "Error",
                ViewData = new ViewDataDictionary()
            };

            base.OnException(filterContext);
        }
    }

    /// 

    /// Determines whether the specified filter context is ajax.
    /// 
    /// The filter context.
    private bool IsAjax(ExceptionContext filterContext)
    {
        return filterContext.HttpContext.Request.Headers["X-Requested-With"] == "XMLHttpRequest";
    }

    /// 

    /// Saves the error log.
    /// 
    /// The ex.
    /// The filter context.
    void SaveErrorLog(Exception ex, ExceptionContext filterContext)
    {
        string logMessage = ex.ToString();

        string logDirectory = Server.MapPath(Url.Content("~/ErrorLog/"));

        DateTime currentDateTime = DateTime.Now;
        string currentDateTimeString = currentDateTime.ToString();
        CheckCreateLogDirectory(logDirectory);
        string logLine = BuildLogLine(currentDateTime, logMessage, filterContext);
        logDirectory = (logDirectory + "\\Log_" + LogFileName(DateTime.Now) + ".txt");

        StreamWriter streamWriter = null;
        try
        {
            streamWriter = new StreamWriter(logDirectory, true);
            streamWriter.WriteLine(logLine);
        }
        catch
        {
        }
        finally
        {
            if (streamWriter != null)
            {
                streamWriter.Close();
            }
        }
    }

    /// 

    /// Checks the create log directory.
    /// 
    /// The log path.
    bool CheckCreateLogDirectory(string logPath)
    {
        bool loggingDirectoryExists = false;
        DirectoryInfo directoryInfo = new DirectoryInfo(logPath);
        if (directoryInfo.Exists)
        {
            loggingDirectoryExists = true;
        }
        else
        {
            try
            {
                Directory.CreateDirectory(logPath);
                loggingDirectoryExists = true;
            }
            catch
            {
            }
        }

        return loggingDirectoryExists;
    }

    /// 

    /// Builds the log line.
    /// 
    /// The current date time.
    /// The log message.
    /// The filter context.       
    string BuildLogLine(DateTime currentDateTime, string logMessage, ExceptionContext filterContext)
    {
        string controllerName = filterContext.RouteData.Values["Controller"].ToString();
        string actionName = filterContext.RouteData.Values["Action"].ToString();

        RouteValueDictionary paramList = ((System.Web.Routing.Route)(filterContext.RouteData.Route)).Defaults;
        if (paramList != null)
        {
            paramList.Remove("Controller");
            paramList.Remove("Action");
        }

        StringBuilder loglineStringBuilder = new StringBuilder();

        loglineStringBuilder.Append("Log Time : ");
        loglineStringBuilder.Append(LogFileEntryDateTime(currentDateTime));
        loglineStringBuilder.Append(System.Environment.NewLine);

        loglineStringBuilder.Append("Username : ");
        loglineStringBuilder.Append(Session["LogedInUserName"]);
        loglineStringBuilder.Append(System.Environment.NewLine);

        loglineStringBuilder.Append("ControllerName : ");
        loglineStringBuilder.Append(controllerName);
        loglineStringBuilder.Append(System.Environment.NewLine);

        loglineStringBuilder.Append("ActionName : ");
        loglineStringBuilder.Append(actionName);
        loglineStringBuilder.Append(System.Environment.NewLine);

        loglineStringBuilder.Append("----------------------------------------------------------------------------------------------------------");
        loglineStringBuilder.Append(System.Environment.NewLine);

        loglineStringBuilder.Append(logMessage);
        loglineStringBuilder.Append(System.Environment.NewLine);
        loglineStringBuilder.Append("==========================================================================================================");

        return loglineStringBuilder.ToString();
    }

    /// 

    /// Logs the file entry date time.
    /// 
    /// The current date time.
    string LogFileEntryDateTime(DateTime currentDateTime)
    {
        return currentDateTime.ToString("dd-MMM-yyyy HH:mm:ss");
    }

    /// 

    /// Logs the name of the file.
    /// 
    /// The current date time.
    string LogFileName(DateTime currentDateTime)
    {
        return currentDateTime.ToString("dd_MMM_yyyy");
    }

}

================================================

查找目录:Root/App_Start/FilterConfig.cs

添加以下代码:

/// 

/// Filter Config
/// 
public class FilterConfig
{
    /// 

    /// Registers the global filters.
    /// 
    /// The filters.
    public static void RegisterGlobalFilters(GlobalFilterCollection filters)
    {
        filters.Add(new HandleErrorAttribute());
    }
}

跟踪AJAX错误:

在布局页面加载中调用CheckAJAXError函数.

function CheckAJAXError() {
    $(document).ajaxError(function (event, jqXHR, ajaxSettings, thrownError) {

        var ex;
        if (String(thrownError).toUpperCase() == "LOGIN") {
            var url = '@Url.Action("Login", "Login")';
            window.location = url;
        }
        else if (String(jqXHR.responseText).toUpperCase().indexOf("THE DELETE STATEMENT CONFLICTED WITH THE REFERENCE CONSTRAINT") >= 0) {

            toastr.error('ReferanceExistMessage');
        }
        else if (String(thrownError).toUpperCase() == "INTERNAL SERVER ERROR") {
            ex = ajaxSettings.url;
            //var url = '@Url.Action("ErrorLog", "Home")?exurl=' + ex;
            var url = '@Url.Action("ErrorLog", "Home")';
            window.location = url;
        }
    });
};