在ssh中出现attempt to associate a collection with two open sessions

 假若你的web.xml中配置了hibernate的OpenSessionInViewFilter的filter那么去掉后，在spring 中这样配置：
<bean name="openSessionInViewInterceptor" 
        class="org.springframework.orm.hibernate3.support.OpenSessionInViewInterceptor">  
        <property name="sessionFactory">  
            <ref bean="sessionFactory" />  
        </property>  
        <property name="flushMode" value="1"/>  
        <property name="singleSession" value="false" />  
    </bean>