How to use OpenSessionInViewFilter

[JayJayBee]

Hi everyone,

I'm using the following frameworks for my web application:

Hibernate 3.0.5
Spring 1.2.5
Struts 1.2.7
Tomcat 5.0.28

I tried to set up OpenInSessionViewFilter to access my persistent collections lazily in my views. Unfortunately, it seems i didn't configure my web.xml correctly as i always get this famous error :
org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed



This is how I configured my xml files:

web.xml (sorry for the indentation)
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/application-context.xml</param-value>
</context-param>
<filter>
<filter-name>hibernateFilter</filter-name>
<filter-class>org.springframework.orm.hibernate3.support.O penSessionInViewFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>hibernateFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoade rListener</listener-class>
</listener>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>3</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>3</param-value>
</init-param>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>/welcome.jsp</welcome-file>
</welcome-file-list>

struts-config.xml
<struts-config>
<form-beans>
...
</form-beans>

<global-exceptions />

<global-forwards>
<forward name="portal" path="/index.jsp" />
<forward name="loginPage" path="/login.jsp"/>
</global-forwards>

<action-mappings>
<action path="/toModule" type="org.springframework.web.struts.DelegatingAct ionProxy" />

<action path="/welcome" type="org.springframework.web.struts.DelegatingAct ionProxy" />
...
</action-mappings>

<controller processorClass="myApp.struts.main.RequestProcessor " />

<message-resources parameter="myApp.struts.ApplicationResources" />


<plug-in className="org.springframework.web.struts.ContextL oaderPlugIn">
<set-property property="contextConfigLocation" value="/WEB-INF/application-context.xml" />
</plug-in>
</struts-config>

application-context.xml
<beans>

<import resource="controller.xml" />
<import resource="service.xml" />
<import resource="dao.xml" />
<import resource="persistence.xml" />
</beans>

i won't include all the xml as they are just mapping of beans. I'ill just focus on persistence.xml

persistence.xml
<beans>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSes sionFactoryBean" singleton="true">
<property name="dataSource">
<ref local="dataSource" />
</property>
<property name="mappingResources">
...
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQ LDialect</prop>
<prop key="hibernate.show_sql">false</prop>
</props>
</property>
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryB ean">
<property name="jndiName">
<value>java:/comp/env/myDS</value>
</property>
</bean>
</beans>

It seems my hibernateFilter that i have defined just doesn't work because of a mistake in my configuration...


Would you mind telling my what's wrong with my configuraion of OpenSessionInViewFilter ?
Did I forget something ?


Thank you in advance for your help.

Best Regards,

Jay