ASP.NET Ajax 客户端框架未能加载 Sys 未定义

<httpHandlers>
      <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"/>
    </httpHandlers>
    <httpModules>
      <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
    </httpModules>

我看还有网友建议直接在IIS的脚本映射里设置。


扩展名:.axd
可执行文件：C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll

动作限制为：GET,HEAD,POST,DEBUG

还有一个地方值得注意的！！！！！
将

<globalization requestEncoding="gb2312" responseEncoding="gb2312"/>

换成
<globalization requestEncoding="utf-8" responseEncoding="utf-8"/>