十八、springboot中hibernate配置sessionFactory访问数据库

前提

  在yml或properties文件中配置数据库与数据库连接池

Hibernate配置

几种方式:

方式一:

@Configuration
public class HibernateConfig {
    
    @Bean
    public SessionFactory sessionFactory(@Qualifier("entityManagerFactory") EntityManagerFactory emf){
         return emf.unwrap(SessionFactory.class);
     }

}

方式二:

@Autowired
private EntityManagerFactory entityManagerFactory;

@Bean
public SessionFactory getSessionFactory() {
    if (entityManagerFactory.unwrap(SessionFactory.class) == null) {
        throw new NullPointerException("factory is not a hibernate factory");
    }
    return entityManagerFactory.unwrap(SessionFactory.class);
}

方式三:

  在属性配置文件中配置(可有可无)

  spring.jpa.properties.hibernate.current_session_context_class=org.springframework.orm.hibernate4.SpringSessionContext

@Bean
public HibernateJpaSessionFactoryBean sessionFactory() {
    return new HibernateJpaSessionFactoryBean();
}

方式四:

  在属性配置文件中配置(可有可无)

  spring.jpa.properties.hibernate.current_session_context_class=org.springframework.orm.hibernate4.SpringSessionContext

@Bean
public SessionFactory sessionFactory(HibernateEntityManagerFactory hemf) {
    return hemf.getSessionFactory();
}

调用

@Autowired
private SessionFactory sessionFactory;

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转载自www.cnblogs.com/soul-wonder/p/9052471.html