Hibernate SessionFactory与Spring LocalSessionFactoryBean
我正在尝试将spring3.2.x+hibernate4.x设置从xml迁移到java配置。Hibernate SessionFactory与Spring LocalSessionFactoryBean,spring,hibernate,Spring,Hibernate,我正在尝试将spring3.2.x+hibernate4.x设置从xml迁移到java配置。 下面是现有代码的一个片段: import org.hibernate.SessionFactory; import org.hibernate.Query; import org.hibernate.Session; public class StockDaoImpl implements StockDao{ private SessionFactory sessionFactory;
下面是现有代码的一个片段:
import org.hibernate.SessionFactory;
import org.hibernate.Query;
import org.hibernate.Session;
public class StockDaoImpl implements StockDao{
private SessionFactory sessionFactory;
public SessionFactory getSessionFactory() {
return sessionFactory;}
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public void save(Stock stock){
Session session = getSessionFactory().openSession();
try{
session.save(stock);
}
finally{
session.close();
}
}
spring配置文件
<!-- Stock Data Access Object -->
<bean id="stockDao" class="com.data.dao.StockDaoImpl" >
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<bean id="dataSource">
.....
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource"/>
</property>
<property name="hibernateProperties">
......
</property>
<property name="mappingResources">
.......
</property>
</bean>
但是它不会编译,因为所引用的sessionFactory
不是Spring的LocalSessionFactoryBean
我如何协调这一点 缺少返回的getObject()调用。用
return sessionFactory.getObject()
(并更改返回类型!)替换它。LocalSessionFactoryBean是一个FactoryBean
。这意味着它允许创建SessionFactory的实例
所以你只需要
public StockDao stockDao() {
StockDaoImpl dao=new StockDaoImpl();
dao.setSessionFactory(sessionFactory().getObject());
return dao;
}
但我不会像那样创建DAOs明确的电话。只需使用@Repository注释DAO,并使用@Autowired自动连接会话工厂。确保Java配置类用@ComponentScan(“the.base.package.of.daos”)注释对我有帮助,但我需要单独声明bean才能工作:
@Bean
public LocalSessionFactoryBean sessionFactoryBean(final DataSource dataSource,
final Properties hibernateProperties,
final List<String> hibernateMappings) {
LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean();
sessionFactoryBean.setDataSource(dataSource);
sessionFactoryBean.setHibernateProperties(hibernateProperties);
sessionFactoryBean.setMappingResources(hibernateMappings.toArray(new String[hibernateMappings.size()]));
return sessionFactoryBean;
}
@Bean
public SessionFactory sessionFactory(LocalSessionFactoryBean sessionFactoryBean) {
return sessionFactoryBean.getObject();
}
@Bean
公共LocalSessionFactoryBean sessionFactoryBean(最终数据源数据源,
最终属性和最终属性,
最终清单(附件){
LocalSessionFactoryBean sessionFactoryBean=新的LocalSessionFactoryBean();
setDataSource(dataSource);
setHibernateProperties(hibernateProperties);
setMappingResources(hibernateMappings.toArray(新字符串[hibernateMappings.size()]);
返回sessionFactoryBean;
}
@豆子
public SessionFactory SessionFactory(LocalSessionFactoryBean sessionFactoryBean){
返回sessionFactoryBean.getObject();
}
这将无法编译:准确完整的编译错误是什么?为什么不使用自动连接和类路径扫描,而不是明确定义DAO?com\data\config\PersistenceConfig.java:32:com.data.DAO.StockDaoImpl中的setSessionFactory(org.hibernate.sessionFactory)不能应用于(org.springframewor k.orm.hibernate4.LocalSessionFactoryBean)DAO.setSessionFactory(sessionFactory());
@Bean
public LocalSessionFactoryBean sessionFactoryBean(final DataSource dataSource,
final Properties hibernateProperties,
final List<String> hibernateMappings) {
LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean();
sessionFactoryBean.setDataSource(dataSource);
sessionFactoryBean.setHibernateProperties(hibernateProperties);
sessionFactoryBean.setMappingResources(hibernateMappings.toArray(new String[hibernateMappings.size()]));
return sessionFactoryBean;
}
@Bean
public SessionFactory sessionFactory(LocalSessionFactoryBean sessionFactoryBean) {
return sessionFactoryBean.getObject();
}