在asp.net中发生异常时重定向到错误页面？

我想在发生异常时重定向到错误页面。在asp.net中发生异常时重定向到错误页面？

如果代码未在页面中处理try{}catch(Exception ex){}并且Web应用程序中发生错误。然后我想重定向Error.aspx与异常详细信息diplay。

我已经在Global.asax这样的页面中编写了代码。

Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs) 
    ' Code that runs when an unhandled error occurs 
    Dim str As String = CType(sender, HttpApplication).Context.Request.Url.ToString 
    Helper.ApplicationErrorHandler() 
End Sub 

Public Shared Sub ApplicationErrorHandler() 
    Dim ex As Exception 

    ex = HttpContext.Current.Server.GetLastError 

    Dim str As String = HttpContext.Current.Request.Url.ToString() 

    ' filter out 404 responses 
    Dim httpException = TryCast(ex, HttpException) 
    If httpException IsNot Nothing AndAlso httpException.GetHttpCode() = 404 Then 
     Return 
    End If 


    If TypeOf ex Is HttpUnhandledException AndAlso ex.InnerException IsNot Nothing Then 
     ex = ex.InnerException 
    End If 

    If (ex IsNot Nothing) Then 

     Dim msg As String = String.Format("An unhandled exception occurred:{0}Message: {1}{0}{0} Stack Trace:{0}{2}", System.Environment.NewLine, ex.Message, ex.StackTrace) 
     Utility.SendEMail("[email protected]", System.Configuration.ConfigurationManager.AppSettings("ErrorEmailRecipient"), msg, "Labor Error") 

    End If 
    HttpContext.Current.Session.Add("Error", ex.Message) 
    HttpContext.Current.Server.Transfer("error.aspx") 

End Sub

它仍然是异常停止在错误的地方。它不会重定向到错误页面。

Object reference not set to an instance of an object. 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. 

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. 

Stack Trace: 


[NullReferenceException: Object reference not set to an instance of an object.] 
    Labor.AttributeProcess.Page_Load(Object sender, EventArgs e) in C:\Source Trunk\Labor\Labor\AttributeProcess.aspx.vb:23 
    System.Web.UI.Control.OnLoad(EventArgs e) +131 
    System.Web.UI.Control.LoadRecursive() +65 
    System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2427

如何处理？即使没有尝试抓取句柄，我也希望重定向到错误页面。

来源

2011-04-18 James123

检查web.config中的customErrors Element。您可以使用它来配置您的网站，以便在发生异常时重定向到其他页面。

来源

2011-04-18 03:22:33

通过雅各布盖德建议的链接不工作了，所以这里就是答案，如果有人有一次跟我一样，同样的问题，下面的代码复制Application_Error事件中在Global.asax里面：

// After Handle the error. Clear It 
Server.ClearError(); 

// Clear rendered. Just if needed 
Response.Clear(); 

// Finally redirect, transfer 
Response.Redirect("~/ErrorViewer.aspx");

来源

2014-08-06 17:56:05

在asp.net中发生异常时重定向到错误页面？

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