在junit测试中运用openSessionInView
因为在spring提供的junit扩展中无法像web程序那样使用openSessionInView,
查了下官方信息，找到了如下解决方式
spring已经提供了针对此情况的应对方式,具体类为TransactionSynchronizationManager
使用此类可在事务中绑定一个hibernate的session对象,使之达到openSessionInView的效果.
具体列子:
@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration(locations = { "classpath:applicationContext.xml" })public class OpenSessionInViewTest extends AbstractTransactionalSpringContextTests { @Resource(name="hibernateSessionFactory")private SessionFactory sessionFactory; @Beforepublic void init() {Session s = sessionFactory.openSession();TransactionSynchronizationManager.bindResource(sessionFactory, new SessionHolder(s)); } @Testpublic void testQuery() {SessionHolder holder = (SessionHolder)TransactionSynchronizationManager.getResource(sessionFactory);Session session = holder.getSession();User user= (User)session.get(User.class, "abc0003");System.out.println(user.getId());Set<Book> books= user.getBooks();for (Book book: books) {System.out.println(book.getId());}} @Afterpublic void close() {SessionHolder holder = (SessionHolder)TransactionSynchronizationManager.getResource(sessionFactory);SessionFactoryUtils.closeSession(holder.getSession());TransactionSynchronizationManager.unbindResource(sessionFactory); }}