failed to lazily initialize a collection of role: com.qf.entity.Operator.questio

[yjzkaishi]

在做ssh项目的时候,在questionBiz中 运行到以下语句
Operator oper=(Operator)ServletActionContext.getRequest().getSession()
.getAttribute("userInfo");
oper.getQuestions().add(question);
就报以下错误 failed to lazily initialize a collection of role: com.qf.entity.Operator.questions, no session or session was closed

web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:com/qf/spring/*.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!--
<servlet>
<servlet-name>dwr</servlet-name>
<servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/dwr/dwr.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dwr</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
-->
<!-- TODO:配置安全过滤器，拦截所有struts请求 -->
<filter>
<filter-name>security</filter-name>
<filter-class>
com.qf.util.SecurityFilter
</filter-class>
<init-param>
<param-name>excludePath</param-name>
<param-value>/loginOperator</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>security</filter-name>
<url-pattern>*.htm</url-pattern>
</filter-mapping>



<filter>
<filter-name>openSession</filter-name>
<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>openSession</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>


<filter>
<filter-name>struts2-cleanup</filter-name>
<filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2-cleanup</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>


<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

请高手指点

[Octer]

add之前load一下吧
或者questions属性不是懒加载的