sharepoint下Session不可用，更改Web.config配置

 Add the following directives in the Web.config file of the Web application between the <system.web> tag and the </system.web> tag:
<!-- Clear out the WSS ASP.NET handler and specify the default ASP.NET handler for all pages. -->
<httpHandlers>
<clear />
<add verb="*" path="*.aspx" type="System.Web.UI.PageHandlerFactory, System.Web, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</httpHandlers>
<!-- Set the trust to Full. WSS configures a very restrictive trust policy that does not allow ASP.NET Web application to run correctly.-->
<trust level="Full" originUrl="" />
<!-- Enable the session module. This can also be enabled on the WSS Web.config, but is not enabled by default. If you receive the following message:Parser Error Message: The module 'Session' is already in the application and cannot be added again. You can remove the following <httpModules></httpModules> section as session is already enabled on the virtual server. -->
<httpModules>
<add name="Session" type="System.Web.SessionState.SessionStateModule"/>
</httpModules>
<!-- Enable session state for all the pages in the Web application. -->
<pages enableSessionState="true" enableViewState="true" enableViewStateMac="true" validateRequest="false" />