我得到LazyInitializationException和服务层中的会话作用域bean。如果我在我的方法中使用常规dao加载相同的bean,则可以毫无问题地访问它的懒集合。但是,如果我将它注入到服务bean中,然后尝试访问它的一个懒惰集合,那么我有一个LazyInitializationException。LazyInitializationException和会话作用域bean
我正在使用JPA + Hibernate + Spring + struts。我已经配置了OpenEntityManagerInViewFilter。另外,我可以在日志中清楚地看到事务和会话已打开。
有没有什么特别的,我必须在配置会话范围的bean与懒惰集合?
下面是日志:
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter:lookupEntityManagerFactory:146 - Using EntityManagerFactory 'entityManagerFactory' for OpenEntityManagerInViewFilter
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter:doFilterInternal:101 - Opening JPA EntityManager in OpenEntityManagerInViewFilter
org.springframework.orm.jpa.JpaTransactionManager:doGetTransaction:285 - Found thread-bound EntityManager [[email protected]] for JPA transaction
org.springframework.transaction.support.AbstractPlatformTransactionManager:getTransaction:371 - Creating new transaction with name [com.xx.action.spring.service.SearchService.loadCurrencyCode]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT,readOnly
org.hibernate.impl.SessionImpl:<init>:247 - opened session at timestamp: 5093202578464768
org.hibernate.transaction.JDBCTransaction:begin:82 - begin
org.hibernate.jdbc.ConnectionManager:openConnection:444 - opening JDBC connection
org.hibernate.transaction.JDBCTransaction:begin:87 - current autocommit status: true
org.hibernate.transaction.JDBCTransaction:begin:90 - disabling autocommit
org.springframework.orm.jpa.JpaTransactionManager:doBegin:348 - Exposing JPA transaction as JDBC transaction [SimpleConnectionHandle: [email protected]]
org.hibernate.LazyInitializationException:<init>:42 - could not initialize proxy - no Session
org.hibernate.LazyInitializationException: could not initialize proxy - no Session
at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:86)
at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:140)
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190)
at com.xxx.api.jpa.bean.CurrencyBean_$$_javassist_29.getHtmlSymbol(CurrencyBean_$$_javassist_29.java)
这里的bean的配置:
<bean id="currentUserBean" class="com.xxx.action.spring.CurrentUserBean" scope="session">
<aop:scoped-proxy />
</bean>
谢谢,但我没有使用JSF。我正在使用Struts。 – 2009-05-27 22:00:13