我正在使用 @Transactional 而不是创建 TransactionManager 对象并进行调用。有人可以说明为什么我会收到此 HibernateException:如果没有活动交易,保存无效?
对于sessionFactory和TransactionManager ,Bean
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="configLocation" value="classpath:hibernate.cfg.xml"/>
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
UserServiceImpl.java
@Service("userService")
public class UserServiceImpl implements UserService {
@Autowired
private UserDao userDao;
@Override
@Transactional
public void addUser(User user) {
userDao.addUser(user);
}
}
UserDaoImpl.java
@Repository("userDao")
public class UserDaoImpl implements UserDao {
@Autowired
private SessionFactory sessionFactory;
@Override
public void addUser(User user) {
sessionFactory.getCurrentSession().save(user);
}
}
堆栈跟踪
org.hibernate.HibernateException: save is not valid without active transaction
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:348)
at com.sun.proxy.$Proxy27.save(Unknown Source)
at com.hemanths.expense.manager.hibernate.dao.impl.UserDaoImpl.addUser(UserDaoImpl.java:19)
at com.hemanths.expense.manager.service.impl.UserServiceImpl.addUser(UserServiceImpl.java:21)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
Hibernate.hbm.xml
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.current_session_context_class">thread</property>
<property name="connection.url">jdbc:mysql://127.0.0.1:3306/emanager</property>
<property name="connection.username">root</property>
<property name="connection.password">password</property>
<property name="hibernate.c3p0.min_size">5</property>
<property name="hibernate.c3p0.max_size">20</property>
<mapping class="com.hemanths.expense.manager.hibernate.entity.User"/>
</session-factory>
</hibernate-configuration>
答案 0 :(得分:3)
删除
<property name="hibernate.current_session_context_class">thread</property>
并尝试