asp.net-ajax - HTTP 处理程序在 ~/admin/folder 中的嵌套 Web 应用程序文件夹 : Telerik RadScriptManager cannot find WebResource. axd 中找不到 axd 文件

Question

我们有一个带有 2 个 web.config 文件的 Web 应用程序。我在 ASP.NET 页面中使用 telerik:RadScriptManager 控件。该控件需要访问其 ScriptReferences 的 Web 资源文件 (WebResource.axd)。我认为这个 .axd 文件包含 Telerik 控件的 JavaScript 文件。我们所有的 Rad 控件都是在名为“admin”的单独 Web 应用程序 (.csproj) 项目中实现的。根 Web 应用程序项目 (.csproj) 有一个名为“admin”的文件夹，其中包含所有管理项目文件，包括管理 web.config。我在这里遇到问题的页面也存在于管理项目中。我认为它试图访问根文件夹中的 .axd 文件，而不是“/admin”文件夹。 (在更改 HTTP 处理程序的路径后，问题底部出现另一个错误)。 如何让应用程序读取 ~/admin/Telerik.Web.UI.WebResource.axd 中的 WebResource.axd 文件而不是 ~/Telerik.Web.UI.WebResource.axd？猜测这 3 个 JavaScript 错误是由于此资源问题而导致的，因为当我显式导航到管理文件夹 URL 中的资源时，我可以看到 ASP.NET AJAX Control Toolkit JavaScript 代码。

源代码:

   <telerik:RadScriptManager ID="RadScriptManager1" runat="server">
       <%--<Scripts>
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
       </Scripts>--%>
   </telerik:RadScriptManager>

根应用程序 web.config 中的代码:

<location path="Telerik.Web.UI.WebResource.axd">
  <system.web>
    <authorization>
      <allow users="*"/>
    </authorization>
  </system.web>
</location>

以下是网站(根)应用程序项目 web.config HTTP 处理程序:

    <httpHandlers>
        <add path="/services/social.axd" verb="GET,POST" type="Acu.Cms.Modules.Social.PeopleHandler, Acu.Cms.Modules.Social"/>
        <add verb="*" path="AcuLanapCaptcha.axd" type="Lanap.BotDetect.AcuCaptchaHandler, Lanap.BotDetect"/>
        <add verb="*" path="LanapCaptcha.aspx" type="Lanap.BotDetect.CaptchaHandler, Lanap.BotDetect"/>
        <add path="*.cmsx" verb="*" type="Acu.Cms.Web.HttpCmsRequestHandler, Acu.Cms"/>
        <add path="image.acux" verb="GET" type="Acu.Web.Imaging.WebImageHandler, Acu.Web.Imaging"/>
        <add path="media.acux" verb="GET" type="Acu.Cms.Web.CmsWebMediaHandler, Acu.Cms"/>
        <remove verb="*" path="*.asmx" />
        <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" />
        <add path="WebResource.axd" verb="GET" type="System.Web.Handlers.AssemblyResourceLoader" validate="true" />
    </httpHandlers>

以下是管理(虚拟目录)应用程序项目 web.config HTTP 处理程序:

  <httpHandlers>
        <remove path="LanapCaptcha.aspx" verb="*" />
        <remove path="AcuLanapCaptcha.aspx" verb="*" />
        <remove verb="*" path="*.asmx" />
        <add path="Authenticator.ashx" verb="GET,POST" type="Acu.Cms.Website.Admin.Authenticator, Acu.Cms.Website.Admin" />
        <add verb="*" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" validate="false" />
        <add verb="*" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.Upload.RadUploadProgressHandler, Telerik.Web.UI" />
        <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add verb="*" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" validate="false" />
        <!--ScriptResourceHandler.axd is the resource handler URL used to serve all of the javascript files found in the Microsoft AJAX Library-->
        <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" />
        <add path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" verb="*" validate="false" />
        <add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false" />
        <add path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" validate="false" />
        <add verb="*" validate="false" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler, Telerik.Web.UI" />
    </httpHandlers>

JavaScript 错误#1:

ASP.NET Ajax 客户端框架加载失败。

<script type="text/javascript">
//<![CDATA[
if (typeof(Sys) === 'undefined') throw new Error('ASP.NET Ajax client-side framework failed to load.');
function WebForm_OnSubmit() {
if (typeof(ValidatorOnSubmit) == "function" && ValidatorOnSubmit() == false) return false;
return true;
} 

JavaScript 错误#2:

系统未定义

<script type="text/javascript">
//<![CDATA[
Sys.WebForms.PageRequestManager._initialize('RadScriptManager1', document.getElementById('editorform'));
Sys.WebForms.PageRequestManager.getInstance()._updateControls(['tctl00SU'], [], [], 90);
//]]>
</script> 

JavaScript 错误#3:

RadEditorCommandList 未定义

RadEditorCommandList['Edit Link'] = function(commandName, editor, oTool)
{
_editor = editor;
_point = editor.CreateRestorePoint();
var selection = editor.GetSelection();
var pe = selection.GetParentElement();
var id = '';
if (pe && pe.tagName.toLowerCase() == 'a' && pe.attributes['cms:asset_id']) {
id = pe.attributes['cms:asset_id'].value;
}
window.top.InlineLinkEditor.selection = selection.GetText();
window.top.InlineLinkEditor.show('elementid=' + $('__elementId').value + '&xrefid=' + id + '&html=' + encodeURIComponent(selection.GetHtmlText()), editLink, null);
}; 

============

排查更多问题...

我尝试将管理项目 web.config WebResource HTTP 处理程序的路径更改为“/admin/...”，但随后出现以下新错误。

<add verb="*" path="/admin/Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" validate="false" />

新错误:

Server Error in '/' Application.
'~/Telerik.Web.UI.WebResource.axd' is missing in web.config. RadScriptManager requires a HttpHandler registration in web.config. Please, use the control Smart Tag to add the handler automatically, or see the help for more information: Controls > RadScriptManager
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.InvalidOperationException: '~/Telerik.Web.UI.WebResource.axd' is missing in web.config. RadScriptManager requires a HttpHandler registration in web.config. Please, use the control Smart Tag to add the handler automatically, or see the help for more information: Controls > RadScriptManager

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:

[InvalidOperationException: '~/Telerik.Web.UI.WebResource.axd' is missing in web.config. RadScriptManager requires a HttpHandler registration in web.config. Please, use the control Smart Tag to add the handler automatically, or see the help for more information: Controls > RadScriptManager]
   Telerik.Web.UI.RadScriptManager.OnPreRender(EventArgs e) +169
   System.Web.UI.Control.PreRenderRecursiveInternal() +80
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842


Version Information: Microsoft .NET Framework Version:2.0.50727.3623; ASP.NET Version:2.0.50727.3618 

尝试从本文中获取一些信息:

http://weblogs.asp.net/asptest/archive/2008/10/06/asp-net-ajax-and-http-handlers-a-cautionary-tale.aspx

还尝试使用它来解决问题..它帮助指导了我一点，但对于我的特定问题来说并不完整:

http://www.telerik.com/help/aspnet-ajax/introduction-troubleshooting.html

Answer 1

事实证明，ASP.NET 首先查看根 web.config 中的 HTTP 处理程序，然后查看虚拟目录 web.config 文件中的 HTTP 处理程序。因此，当它到达下面我标记为“罪魁祸首”的行时，它从未到达虚拟目录 web.config 文件中的行。所以我只是在“罪魁祸首”HTTP 处理程序上方添加了另一行。

根网站文件夹 web.config HTTP 处理程序:

<httpHandlers>
    <add path="/services/social.axd" verb="GET,POST" type="Acu.Cms.Modules.Social.PeopleHandler, Acu.Cms.Modules.Social"/>
    <add verb="*" path="AcuLanapCaptcha.axd" type="Lanap.BotDetect.AcuCaptchaHandler, Lanap.BotDetect"/>
    <add verb="*" path="LanapCaptcha.aspx" type="Lanap.BotDetect.CaptchaHandler, Lanap.BotDetect"/>
    <add path="*.cmsx" verb="*" type="Acu.Cms.Web.HttpCmsRequestHandler, Acu.Cms"/>
    <add path="image.acux" verb="GET" type="Acu.Web.Imaging.WebImageHandler, Acu.Web.Imaging"/>
    <add path="media.acux" verb="GET" type="Acu.Cms.Web.CmsWebMediaHandler, Acu.Cms"/>
    <remove verb="*" path="*.asmx" />
    <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" />
    <!-- FIXED WITH THIS LINE --><add verb="*" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" validate="false" />  
    <!-- CULPRIT ............ --><add path="WebResource.axd" verb="GET" type="System.Web.Handlers.AssemblyResourceLoader" validate="true" />  
</httpHandlers>

还将其添加到虚拟目录 web.config 中:

    <handlers>

...删除了其他处理程序

        <add name="Telerik.Web.UI.WebResource"
             path="Telerik.Web.UI.WebResource.axd" 
             type="Telerik.Web.UI.WebResource, Telerik.Web.UI"
             verb="*"  />

    </handlers>

...另一种选择是将“admin/*”添加到路径 web.config 属性的开头。如果该处理程序在 RadEditor 或其他控件中使用，则必须正确引用它。