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POHow do I re-open a Spring session in conjunction with OpenSessionInViewInterceptor
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copied!<p>I am using the Spring MVC framework with Hibernate. All of my controllers are using OpenSessionInViewInterceptor.</p> <p>I am getting "could not initialize proxy - the owning Session was closed" errors in my controller's onSubmit() method. I believe this is because Hibernate needs to go back to the database to fetch certain objects which were retrieved as proxies, and the OpenSessionInViewInterceptor has already closed the session.</p> <p>I have been working around these problems by using HibernateTemplate().reattach() on the objects.</p> <p>My questions are:</p> <p>a) am I right in my diagnosis? and b) is there a better way to re-open the Hibernate session? Is there a way to programmatically re-open a session in Hibernate without reattach()?</p> <p>Edit: stack trace is below: when I iterate over the Set in my submit method I get the error</p> <pre><code>Data access failure: failed to lazily initialize a collection of role: com.companyname.apps.manager.domain.PriceChangeset.priceChanges, no session or session was closed org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.companyname.apps.manager.domain.PriceChangeset.priceChanges, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358) at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350) at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:343) at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86) at org.hibernate.collection.PersistentSet.iterator(PersistentSet.java:163) **at com.companyname.apps.manager.service.impl.PriceChangesetServiceImpl.addChangesToSqlTransfer(PriceChangesetServiceImpl.java:263) at com.companyname.apps.manager.service.impl.PriceChangesetServiceImpl.approve(PriceChangesetServiceImpl.java:185)** at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:299) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:139) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:161) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) at $Proxy100.approve(Unknown Source) at com.companyname.apps.manager.webapp.controller.pricechanges.PriceChangeDetailsController.onSubmit(PriceChangeDetailsController.java:115) </code></pre> <p>Thanks!</p>

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