MVC 里怎么捕捉不到Action里异常

Question

我使用的Spring.net + Nhibernate +mvc有这么一段配置 
  <databaseSettings>
    <add key="db.datasource" value="aaaaa" />
    <add key="db.user" value="sa" />
    <add key="db.password" value="1111" />
    <add key="db.database" value="bbbbb" />
  </databaseSettings>
我故意配置错误,
然后在action里面调用
try{
                   var iof = Spring.Context.Support.ContextRegistry.GetContext();                    return iof.GetObject("SessionService") as ISessionService;
}
catch{}
就是捕捉不到异常,但是确实有异常为System.Configuration.ConfigurationErrorsException,
异常出在这句话            var iof = Spring.Context.Support.ContextRegistry.GetContext();vs提示说没有处理异常,
为什么没有将异常传递到catch里

Answer 1

<configuration>
  <!--SpringCfgStrat-->
  <!--ConfigSections-->
  <configSections>
    <section name="databaseSettings" type="System.Configuration.NameValueSectionHandler" />
    <sectionGroup name="spring">
      <section name="context" type="Spring.Context.Support.ContextHandler, Spring.Core" />
    </sectionGroup>
  </configSections>
  <!--String to connect special db-->
  <databaseSettings>
    <add key="db.datasource" value="aaaaa" />
    <add key="db.user" value=" sa" />
    <add key="db.password" value="1111" />
    <add key="db.database" value="bbbbb" />
  </databaseSettings>
  <!--Ref XML-->
  <spring>
    <context>
      <resource uri="assembly://NetDiskRepository/NetDiskRepository/NhibernateCfg.xml" />
      <resource uri="assembly://NetDiskRepository/NetDiskRepository/RepositoryCfg.xml" />
      <resource uri="assembly://NetDiskService/NetDiskService/TransactionCfg.xml" />
      <resource uri="assembly://NetDiskService/NetDiskService/ServiceBeanCfg.xml" />
    </context>
  </spring>
  <!--SpringCfgEnd-->
  <appSettings>
    <add key="webpages:Version" value="2.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="PreserveLoginUrl" value="true" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>
  <system.web>
    <compilation debug="true" targetFramework="4.0" />
    <pages>
      <namespaces>
        <add namespace="System.Web.Helpers" />
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Routing" />
        <add namespace="System.Web.WebPages" />
      </namespaces>
    </pages>
  </system.web>
  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules runAllManagedModulesForAllRequests="true" />
    <handlers>
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    </handlers>
  </system.webServer>
</configuration>