我看到很多关于这个主题的帖子。经过2天的阅读，我在我的智慧结束时
看起来很简单。会话关闭，然后JSF去渲染延迟加载的集合，无法使用会话。
我错过了什么？我疯了
的web.xml
<filter>
<filter-name>hibernateFilter</filter-name>
<filter- class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
<init-param>
<param-name>sessionFactoryBeanName</param-name>
<param-value>sessionFactory</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>hibernateFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
的applicationContext.xml
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" />
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/dbname" />
<property name="username" value="username" />
<property name="password" value="password" />
</bean>
<bean name="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation">
<value>/hibernate.cfg.xml</value>
</property>
</bean>
服务层
@Transactional(readOnly = true, propagation = Propagation.REQUIRED)
public List<Order> findAll() {
return orderDAO.findAll();
}
OrderDAO.java
public List<T> findAll() {
return sessionFactory.getCurrentSession().createCriteria(getReferenceClass()).list();
}
Order.java
@Entity
@Table(
name="orders"
)
@Access(AccessType.FIELD)
public class Order implements Serializable, Data {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue
private long id;
@OneToMany(mappedBy = "order", fetch = FetchType.LAZY)
private List<PrimaryKeyword> primKeywords;
@Override
public long getId() {
return id;
}
public void addToPrimKeywords(PrimaryKeyword primKeyword) {
if (primKeywords == null) {
primKeywords = new ArrayList<PrimaryKeyword>();
}
this.primKeywords.add(primKeyword);
}
public List<PrimaryKeyword> getPrimKeywords() {
return primKeywords;
}
}
堆栈跟踪
INFO: org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.ardor.data.Order.primKeywords, no session or session was closed
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.ardor.data.Order.primKeywords, no session or session was closed
at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:394)
at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:386)
at org.hibernate.collection.internal.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:126)
at org.hibernate.collection.internal.PersistentBag.size(PersistentBag.java:242)
at javax.faces.model.ListDataModel.isRowAvailable(ListDataModel.java:109)
at javax.faces.model.ListDataModel.setRowIndex(ListDataModel.java:184)
at javax.faces.model.ListDataModel.setWrappedData(ListDataModel.java:219)
at javax.faces.model.ListDataModel.<init>(ListDataModel.java:78)
at com.sun.faces.facelets.component.UIRepeat.getDataModel(UIRepeat.java:258)
at com.sun.faces.facelets.component.UIRepeat.setIndex(UIRepeat.java:444)
at com.sun.faces.facelets.component.UIRepeat.process(UIRepeat.java:483)
at com.sun.faces.facelets.component.UIRepeat.processDecodes(UIRepeat.java:755)
at org.primefaces.component.api.UIData.process(UIData.java:322)
at org.primefaces.component.api.UIData.processChildren(UIData.java:305)
at org.primefaces.component.api.UIData.processPhase(UIData.java:267)
at org.primefaces.component.api.UIData.processDecodes(UIData.java:231)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176)
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:506)
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1612)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at javax.faces.component.UIForm.visitTree(UIForm.java:371)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:376)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:252)
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:57)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:928)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:98)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:145)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:180)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:149)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)