Junit测试 解决Lazy加载时 Session关闭的问题。

import org.hibernate.FlushMode;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.junit.After;
import org.junit.Before;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate3.SessionFactoryUtils;
import org.springframework.orm.hibernate3.SessionHolder;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.transaction.support.TransactionSynchronizationManager;

/**
* Title: AbstractSessionTestCase.java
*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"/spring.xml"})
public abstract class AbstractSessionTestCase {

@Autowired
private SessionFactory sessionFactory;
private Session session;

@Before
public void openSession()  throws Exception {
session = SessionFactoryUtils.getSession(sessionFactory, true);
session.setFlushMode(FlushMode.MANUAL);
TransactionSynchronizationManager.bindResource(sessionFactory,new SessionHolder(session));
}

@After
public void closeSession()  throws Exception {
TransactionSynchronizationManager.unbindResource(sessionFactory);
SessionFactoryUtils.releaseSession(session, sessionFactory);
}

}