Question

当我浏览 http：// localhost：8004 / elmah.axd 时，它会显示应用程序中发生的错误，但它也会生成404错误。我将如何阻止这404错误？

404错误的详细信息是：

    System.Web.HttpException (0x80004005): File does not exist.
   at System.Web.StaticFileHandler.GetFileInfo(String virtualPathWithPathInfo, String physicalPath, HttpResponse response)
   at System.Web.StaticFileHandler.ProcessRequestInternal(HttpContext context, String overrideVirtualPath)
   at System.Web.DefaultHttpHandler.BeginProcessRequest(HttpContext context, AsyncCallback callback, Object state)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

我的网络配置文件如下：

    < configuration >
  < configSections >
    < sectionGroup name="elmah" >
      < section name="security" requirePermission="false" type="Elmah.SecuritySectionHandler, Elmah" />
      < section name="errorLog" requirePermission="false" type="Elmah.ErrorLogSectionHandler, Elmah" />
    </ sectionGroup >
  </ configSections >

  < system.web>
        < compilation debug="true" targetFramework="4.0" />

        < httpHandlers >
          < add verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah" />
        </ httpHandlers >

        < httpModules>
          < add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" />
        </ httpModules>

        < authentication mode="Forms" >
          < forms loginUrl="~/Account/Login.aspx" timeout="2880" />
        </ authentication >
    ..........
    ..........
  </ system.web >

  < system.webServer >
        < modules runAllManagedModulesForAllRequests="true" />
        < validation validateIntegratedModeConfiguration="false" />
        < modules >
          < add name="Elmah.ErrorLog" type="Elmah.ErrorLogModule, Elmah" preCondition="managedHandler" />
        </ modules >
        < handlers >
          < add name="Elmah" path="elmah.axd" verb="POST,GET,HEAD" type="Elmah.ErrorLogPageFactory, Elmah" preCondition="integratedMode" />
        </ handlers >
  </ system.webServer >

  < elmah>
        < security allowRemoteAccess="0" />
        < errorLog type="Elmah.XmlFileErrorLog, Elmah" logPath="~/ErrorLogs" />
  </ elmah >

</ configuration >

Answer 1

我将如何阻止此404错误？

在您的网络应用程序中添加/favicon.ico。当Google Chrome等现代浏览器请求网址时，他们会向/favicon.ico发送额外的HTTP请求，以显示与此网页相关联的favicon。如果您的站点根目录中没有此类文件，则Web服务器将返回404，这是您在Elmah错误日志中观察到的内容。

尝试使用Internet Explorer浏览elmah.axd，但不会看到404错误。

Answer 2

或者，您可以将以下内容添加到web.config文件中的ELMAH configure部分，以忽略favicon.ico请求。

<elmah>

 ...

<errorFilter>
  <!--    Do not capture 404 errors for favicon.ico file requests -->
  <test>
    <and>
      <equal binding="HttpStatusCode" value="404" type="Int32" />
      <regex binding="Context.Request.ServerVariables['URL']" pattern="/favicon.ico(\z|\?)" />
    </and>
  </test>
</errorFilter>

...

</elmah>

当我浏览http：// localhost：8004 / elmah.axd时，它会生成404错误

2 个答案: