我使用spring 3.2和hibernate 4.我想用spring来控制事务。 但是,通过下面提到的配置,我得到了
用于servlet spring的Servlet.service()抛出异常:org.hibernate.HibernateException:找不到当前线程的会话'异常:
<aop:config>
<aop:pointcut id="serviceMethods"
expression="execution(* com.locator.service.impl.ServiceTypeService.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethods" />
</aop:config>
<tx:advice id="txAdvice" transaction-manager="hbTransactionManager">
<tx:attributes>
<tx:method name="*" propagation="REQUIRED" />
</tx:attributes>
</tx:advice>
<!-- Hibernate session factory -->
<bean id="hbSessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
<property name="mappingResources">
<list>
<value>../spring/model/ServiceType.hbm.xml</value>
</list>
</property>
</bean>
<bean id="hbTransactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="hbSessionFactory" />
</bean>
<bean id="serviceTypeService" class="com.locator.service.impl.ServiceTypeService">
<property name="serviceTypeDao" ref="serviceTypeDao"></property>
</bean>
<bean id="serviceTypeDao" class="com.locator.dao.impl.ServiceTypeDao">
<property name="sessionFactory" ref="hbSessionFactory"></property>
</bean>
Dao层和服务的代码如下:
public class ServiceTypeDao implements IServiceTypeDao{
private static final Log log = LogFactory.getLog(ServiceTypeDao.class);
private SessionFactory sessionFactory;
public SessionFactory getSessionFactory(){
return sessionFactory;
}
public void setSessionFactory(SessionFactory sessionFactory){
this.sessionFactory = sessionFactory;
}
public ServiceType findById(int id) {
log.debug("getting ServiceType instance with id: " + id);
try {
Session session = getSessionFactory().getCurrentSession();
ServiceType instance = (ServiceType) session.get("com.locator.model.ServiceType", id);
if (instance == null) {
log.debug("get successful, no instance found");
} else {
log.debug("get successful, instance found");
}
instance.setName(instance.getName()+"0");
session.saveOrUpdate(instance);
return instance;
}catch (RuntimeException re) {
log.error("get failed", re);
throw re;
}
}
}
public class ServiceTypeService implements IServiceTypeService{
private ServiceTypeDao serviceTypeDao;
public void setServiceTypeDao(ServiceTypeDao serviceTypeDao){
this.serviceTypeDao = serviceTypeDao;
}
public ServiceType getServiceTypeById(int id){
return serviceTypeDao.findById(id);
}
}
用getSessionFactory()替换getSessionFactory()。getCurrentSession()。openSession()将解决上述问题,但这意味着开发人员将负责会话打开/关闭而不是弹簧。因此,请告知如何使用弹簧解决这个问题。
答案 0 :(得分:0)
我能够解决这个问题。它是由于以下问题而发生的: