I'm having some problems with Spring 3, with annotations and hibernate.
Im trying to execute this in a JSP that will be included in all the others JSPs, its a header.
${pageContext['request'].userPrincipal.principal.notifications}
My User pojo have a relation with notifications like this
@OneToMany(mappedBy="user", fetch = FetchType.LAZY)
protected Collection<Notification> notifications;
If I call getNotifications from a Controller or Service correctly annotated, I have no problems, but when i'm trying to execute the code insede a JSP, I received a LazyInitializationException like this one :
org.hibernate.LazyInitializationException: failed to lazily initialize a
collection of role: org.prog.para.model.pojo.user.User.notifications, no session or
session was closed
I read about the OpenSessionInViewFilter but i don't know why it does not work.
my web.xml :
<filter>
<filter-name>OpenSessionInViewFilter</filter-name>
<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
<init-param>
<param-name>singleSession</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>OpenSessionInViewFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/spring/app-config.xml
/WEB-INF/spring/security-config.xml
</param-value>
</context-param>
<context-param>
<param-name>defaultHtmlEscape</param-name>
<param-value>true</param-value>
</context-param>
<servlet>
<servlet-name>para-mvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/mvc-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>para-mvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>/static/*</url-pattern>
</servlet-mapping>
my app-config.xml file is :
<context:component-scan base-package="org.prog.para">
<context:exclude-filter expression="org.springframework.stereotype.Controller" type="annotation" />
</context:component-scan>
<!-- Datasource -->
<import resource="ds-config.xml" />
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="org.prog.para.model.pojo" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
<prop key="hibernate.default_schema">schema</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<bean id="hibernateTransactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="hibernateTransactionManager"
proxy-target-class="true" mode="proxy" />
<bean id="emailTemplateResolver" class="org.thymeleaf.templateresolver.ServletContextTemplateResolver">
<property name="prefix" value="/WEB-INF/views/templates/" />
<property name="suffix" value=".html" />
<property name="characterEncoding" value="UTF-8" />
<property name="order" value="1" />
</bean>
<bean id="templateEngine" class="org.thymeleaf.spring3.SpringTemplateEngine">
<property name="templateResolvers" ref="emailTemplateResolver" />
</bean>
<bean id="viewResolver" class="org.thymeleaf.spring3.view.ThymeleafViewResolver">
<property name="templateEngine" ref="templateEngine" />
<property name="characterEncoding" value="UTF-8" />
</bean>
<bean id="springApplicationContext" class="org.prog.para.config.SpringApplicationContext" />
Anyone knows where's my fail? I don't understand why my session is closed when the view is being executed.
I could solve it putting FetchType.EAGER on notifications collection, but it's not what i want. I need it to be a lazy relation.
Thanks in advance !
