映射文件如下:
sequence_stuid
sequence_teaid
@Test public void testSave2() { Configuration cfg = null; ServiceRegistry sr = null; SessionFactory sf = null; Session session = null; Transaction tx = null; try { cfg = new Configuration().configure("hibernate.cfg.xml"); sr = new StandardServiceRegistryBuilder().applySettings(cfg.getProperties()).build(); sf = cfg.buildSessionFactory(sr); System.out.println("SessionFactory --> " + sf); session = sf.openSession(); System.out.println("SESSION --> " + session); tx = session.beginTransaction(); // 创建对象 Teacher t1 = new Teacher("韩老师"); Teacher t2 = new Teacher("王老师"); Student s1 = new Student("小明"); Student s2 = new Student("小蓝"); // 建立关联关系 t1.getStudentSet().add(s1); t1.getStudentSet().add(s2); t2.getStudentSet().add(s2); s1.getTeacherSet().add(t1); s2.getTeacherSet().add(t1); s2.getTeacherSet().add(t2); // 由主动方维护关联关系 inverse="false" session.save(s1); session.save(s2); tx.commit(); System.out.println("transaction commit."); } catch (Exception e) { tx.rollback(); System.out.println("transaction rollback."); } finally { if (session != null) session.close(); System.out.println("session closed."); } }
执行以上方法时事务为什么不会提交?
下面是控制台打印的信息
八月 22, 2015 6:49:48 下午 org.hibernate.annotations.common.reflection.java.JavaReflectionManager
INFO: HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
八月 22, 2015 6:49:48 下午 org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.3.10.Final}
八月 22, 2015 6:49:48 下午 org.hibernate.cfg.Environment
INFO: HHH000206: hibernate.properties not found
八月 22, 2015 6:49:48 下午 org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
八月 22, 2015 6:49:48 下午 org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: hibernate.cfg.xml
八月 22, 2015 6:49:48 下午 org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: hibernate.cfg.xml
八月 22, 2015 6:49:48 下午 org.hibernate.cfg.Configuration addResource
INFO: HHH000221: Reading mappings from resource: com/bdqn/entity/Student.hbm.xml
八月 22, 2015 6:49:48 下午 org.hibernate.cfg.Configuration addResource
INFO: HHH000221: Reading mappings from resource: com/bdqn/entity/Teacher.hbm.xml
八月 22, 2015 6:49:48 下午 org.hibernate.cfg.Configuration doConfigure
INFO: HHH000041: Configured SessionFactory: null
八月 22, 2015 6:49:48 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!)
八月 22, 2015 6:49:48 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000401: using driver [oracle.jdbc.OracleDriver] at URL [jdbc:oracle:thin:@localhost:1521:orcl]
八月 22, 2015 6:49:48 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000046: Connection properties: {user=rolland, password=**}
八月 22, 2015 6:49:48 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000006: Autocommit mode: false
八月 22, 2015 6:49:48 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
八月 22, 2015 6:49:49 下午 org.hibernate.dialect.Dialect
INFO: HHH000400: Using dialect: org.hibernate.dialect.Oracle10gDialect
八月 22, 2015 6:49:49 下午 org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)
八月 22, 2015 6:49:49 下午 org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory
INFO: HHH000397: Using ASTQueryTranslatorFactory
SessionFactory --> org.hibernate.internal.SessionFactoryImpl@52815fa3
SESSION --> SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=org.hibernate.engine.spi.ExecutableList@5e403b4a updates=org.hibernate.engine.spi.ExecutableList@5117dd67 deletions=org.hibernate.engine.spi.ExecutableList@5be49b60 orphanRemovals=org.hibernate.engine.spi.ExecutableList@2931522b collectionCreations=org.hibernate.engine.spi.ExecutableList@7674b62c collectionRemovals=org.hibernate.engine.spi.ExecutableList@19e7a160 collectionUpdates=org.hibernate.engine.spi.ExecutableList@662706a7 collectionQueuedOps=org.hibernate.engine.spi.ExecutableList@45a4b042 unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])
transaction rollback.
session closed.