我正在处理部署在IIS 8.5上的遗留应用程序，它应该自动显示default.aspx页面但不显示404错误。为了测试，我在同一台机器上添加了一个新网站，并上传了一个空的default.aspx页面，这很有效。当我在新网站中再次粘贴web.config时，再次出现相同的错误404。
我尝试在web.config中手动添加默认页面，但同样问题。
所以这看起来像web.config文件中的miss-configuration，请你查看下面的web.config，如果你发现任何问题，请告诉我。
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<sectionGroup name="elmah">
<section name="security" requirePermission="false" type="Elmah.SecuritySectionHandler, Elmah" />
<section name="errorLog" requirePermission="false" type="Elmah.ErrorLogSectionHandler, Elmah" />
<section name="errorMail" requirePermission="false" type="Elmah.ErrorMailSectionHandler, Elmah" />
<section name="errorFilter" requirePermission="false" type="Elmah.ErrorFilterSectionHandler, Elmah" />
</sectionGroup>
</configSections>
<system.web>
<pages enableViewStateMac="false" controlRenderingCompatibilityVersion="4.0" />
<httpRuntime maxRequestLength="2097151" executionTimeout="360" />
<httpHandlers>
<add verb="*" path="Test_*.aspx" type="Test.Web.Domain.Abstract.UrlRewriter" validate="false" />
</httpHandlers>
<compilation debug="true" targetFramework="4.5">
<assemblies>
<add assembly="System.Web.Extensions.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
<add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
</assemblies>
</compilation>
<httpModules>
<add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" />
<add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" />
<add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah" />
</httpModules>
<customErrors mode="RemoteOnly" defaultRedirect="~/500.aspx">
<error statusCode="404" redirect="~/404.aspx" />
<error statusCode="500" redirect="~/500.aspx" />
</customErrors>
</system.web>
<system.webServer>
<httpErrors errorMode="Detailed" />
<asp scriptErrorSentToBrowser="true" />
<directoryBrowse enabled="true" />
<validation validateIntegratedModeConfiguration="false" />
<modules>
<add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" preCondition="managedHandler" />
<add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" preCondition="managedHandler" />
<add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah" preCondition="managedHandler" />
</modules>
</system.webServer>
<system.webServer>
<handlers>
<remove name="ScriptResource" />
<add name="*.aspx_*" path="Test_*.aspx" verb="*" type="Events.WebFormHandlerFactory" />
<add name="HTMLHandler" path="*.aspx" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode,runtimeVersionv4.5,bitness32" type="System.Web.UI.PageHandlerFactory" />
</handlers>
</system.webServer>
<system.webServer>
<staticContent>
<remove fileExtension=".woff" />
<mimeMap fileExtension=".woff" mimeType="application/x-font-woff" />
<remove fileExtension=".ttf" />
<mimeMap fileExtension=".ttf" mimeType="application/octet-stream" />
<remove fileExtension=".svg" />
<mimeMap fileExtension=".svg" mimeType="image/svg+xml" />
<remove fileExtension=".mp4" />
<mimeMap fileExtension=".mp4" mimeType="video/mp4" />
</staticContent>
</system.webServer>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Microsoft.Data.Edm" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.6.4.0" newVersion="5.6.4.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.Data.Services.Client" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.6.4.0" newVersion="5.6.4.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.Data.OData" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.6.4.0" newVersion="5.6.4.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-7.0.0.0" newVersion="7.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.WindowsAzure.MediaServices.Client" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-3.3.0.0" newVersion="3.3.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.WindowsAzure.MediaServices.Client.Common.BlobTransfer" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-3.3.0.0" newVersion="3.3.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Net.Http.Primitives" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-4.2.29.0" newVersion="4.2.29.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<elmah>
<security allowRemoteAccess="true" />
<errorLog type="Elmah.SqlErrorLog, Elmah" connectionStringName="SqlCon" />
</elmah>
<location path="AAAAA.aspx">
<system.web>
<pages validateRequest="false" />
<httpRuntime requestValidationMode="2.0" />
</system.web>
</location>
</configuration>
在上面的代码中，我怀疑在线
<handlers>
<remove name="ScriptResource" />
<add name="*.aspx_*" path="Test_*.aspx" verb="*" type="Events.WebFormHandlerFactory" />
<add name="HTMLHandler" path="*.aspx" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode,runtimeVersionv4.5,bitness32" type="System.Web.UI.PageHandlerFactory" />
</handlers>
它的runtimeVersion是4.5，它也是目标框架，但是scriptProcessor有v4.0.30319这有点像臭虫。
非常感谢任何输入。
答案 0 :(得分：1)
web.config中没有任何问题，只有在我在现有Web表单应用程序中启用MVC位后才出现此问题。
MVC应用程序覆盖现有的基于Web表单扩展的URL，因此当请求没有扩展名（.aspx）时，这会将请求映射到默认路由，即domain.com/Home/Index，这在我的应用程序中不可用，因此我看到404 Not Found。
现在，为了设置或阻止此MVC默认设置，我们可以使用
routes.IgnoreRoute("");
这里的代码就像魅力一样。
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.IgnoreRoute("");
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
希望这会节省你的时间。
答案 1 :(得分：0)
您可以尝试只使用一个 system.webServer 条目。