asp.net - 404 页面适用于本地主机，但不适用于生产(Azure Web App)

Question

我的本​​地主机上有一个 404 页面，它工作得很好。但是，当它被推送到 Azure Web App 时，却没有。

我最初是通过发布工具推送它的，现在我使用从 Github 分支推送的内置功能。<​​/p>

我有以下web.config:

<system.web>
    <customErrors mode="On" defaultRedirect="~/Error/Index">
      <error redirect="~/Error/NotFound" statusCode="404" />
      <error redirect="~/Error/Index" statusCode="500" />

    </customErrors>
    <!-- More stuff :-) -->
  </system.web>
  <system.webServer>

这是我的错误 Controller :

 public class ErrorController : Controller
    {
        public ViewResult Index()
        {
            return View("Error");
        }
        public ViewResult NotFound()
        {
            Response.StatusCode = 404; 
            return View("NotFound");
        }
    }

我的生产 web.config 转换文件根本没有更改(请参阅注释中的内容):

<?xml version="1.0"?>

<!-- For more information on using Web.config transformation visit http://go.microsoft.com/fwlink/?LinkId=301874 -->

<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <!--
    In the example below, the "SetAttributes" transform will change the value of
    "connectionString" to use "ReleaseSQLServer" only when the "Match" locator
    finds an attribute "name" that has a value of "MyDB".

    <connectionStrings>
      <add name="MyDB"
        connectionString="Data Source=ReleaseSQLServer;Initial Catalog=MyReleaseDB;Integrated Security=True"
        xdt:Transform="SetAttributes" xdt:Locator="Match(name)"/>
    </connectionStrings>
  -->
  <system.web>
    <compilation xdt:Transform="RemoveAttributes(debug)" />
    <!--
      In the example below, the "Replace" transform will replace the entire
      <customErrors> section of your Web.config file.
      Note that because there is only one customErrors section under the
      <system.web> node, there is no need to use the "xdt:Locator" attribute.

      <customErrors defaultRedirect="GenericError.htm"
        mode="RemoteOnly" xdt:Transform="Replace">
        <error statusCode="500" redirect="InternalError.htm"/>
      </customErrors>
    -->
  </system.web>
</configuration>

但是，虽然我的 404 页面在本地主机中运行得很好，但在生产中我得到:

The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.

而不是一个好看的 404 页面。

有什么想法吗？

Answer 1

I have a 404 page on my localhost which works just fine. However, when it's pushed to Azure Web App, it does not.

我使用了您的代码并重现了您的结果。

我添加<httpErrors existingResponse="PassThrough" />至<system.webServer> </system.webServer>在 web.config 中，然后它就可以正常工作了。

<system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules>
      <remove name="ApplicationInsightsWebTracking" />
      <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" preCondition="managedHandler" />
    </modules>
    <httpErrors existingResponse="PassThrough" />
</system.webServer>

可以引用这个article了解更多详情。