我有两个并行运行的数据库。
我为每个配置创建了两个具有不同GenericDAO / SessionFactories的配置,但是要实例化的第二个SessionFactory存在问题。当我尝试getCurrentSession()时,出现以下错误:org.hibernate.HibernateException:当前会话未找到会话。
Config1.xml:
<bean id="mainDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/main" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
<bean id="mainSessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="mainDataSource" />
<property name="annotatedClasses">
<list>
<value>com.avocat.domain.entities.main.User</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
<bean id="mainTransactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="dataSource" ref="mainDataSource" />
<property name="sessionFactory" ref="mainSessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="mainTransactionManager" />
<context:annotation-config />
Config2.xml:
<bean id="fakeDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/fake" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
<bean id="fakeSessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="fakeDataSource" />
<property name="annotatedClasses">
<list>
<value>com.avocat.domain.entities.intra.Bla</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
<bean id="fakeTransactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="dataSource" ref="fakeDataSource" />
<property name="sessionFactory" ref="fakeSessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="fakeTransactionManager" />
<context:annotation-config />
MainGenericDAO:
@Autowired
@Qualifier("mainSessionFactory")
private SessionFactory mainSessionFactory;
protected Session currentSession()
{
return mainSessionFactory.getCurrentSession();
}
FakeGenericDAO:
@Autowired
@Qualifier("fakeSessionFactory")
private SessionFactory fakeSessionFactory;
protected Session currentSession()
{
return fakeSessionFactory.getCurrentSession();
}
Config1在Config2之前声明。
另外,使用MainGenericDAO / MainSessionFactory的查询也可以。
但是FakeGenericDAO的currentSession()返回错误。
最佳答案
似乎未在DAO
的第二个FakeSessionFactory
上创建事务。您必须在@Transactional("fakeTransactionManager")
上使用FakeGenericDAO
。