Question

我想知道您是否可以禁用Web例外，例如，

404 Not Found

Answer 1

您不禁用WebExceptions。像大多数其他例外一样，它们的全部意义在于发出一个在发生这种情况时无法解决的问题。你不能忽视这一点，并期望你的应用程序能够正常运作。

你所做的是捕获并处理异常。像这样。

Try
    Dim response = request.GetResponse()

    '... do stuff with response here ...

Catch ex as WebException
    ' Note, `response` probably isn't usable here!  Pretty sure it's
    ' out of scope.  In any case, if `GetResponse` is throwing the
    ' exception, then it didn't return a value.  However, you should be
    ' able to access `ex.Response` to get info about the response,
    ' including the HTTP response code.
    Dim errorResponse = CType(ex.Response, HttpWebResponse)
    If errorResponse.StatusCode = HttpStatusCode.NotFound Then

        '... handle error ...

    Else
        ' if it's not a 404, we're not doing anything about the exception
        ' so rethrow it
        Throw
    End If
End Try

' Note, `response` is out of scope here!

Answer 2

这必须在IIS中完成。

要执行此操作，请导航至开始 - ＆gt;控制面板 - ＆gt;管理工具 - ＆gt; IIS

在列表中选择您的Web服务器，然后双击错误页面选项

为您要替换或删除的错误消息添加特定网页。

如果您需要更多详细信息，请参阅以下内容：http://www.braintrove.com/id/46

你能禁用网络例外吗？

2 个答案: