步驟：

1.配置hibernate.cfg.xml文件配置屬性

<!-- 配置管理Session的方式 -->
<property name="current_session_context_class">thread</property>
        

2.HibernateUtils 創(chuàng)建SessionFactory 獲取Session 獲取SessionFactory

public class HibernateUtils {
    private SessionFactory sessionFactory;
    private static HibernateUtils hUtils = new HibernateUtils();

    private HibernateUtils() {
    }

    // 獲取SessionFactory
    public SessionFactory getSessionFactory() {
        if (sessionFactory == null) {
            StandardServiceRegistry registry = new StandardServiceRegistryBuilder().configure().build();// 配置文件configure()
            sessionFactory = new MetadataSources(registry).buildMetadata().buildSessionFactory();
        }
        return sessionFactory;
    }

    // 獲取Session
    public Session getSession() {
        return getSessionFactory().getCurrentSession();// 獲取當(dāng)前線程綁定的Session

    }

    public static HibernateUtils gethUtils() {
        return hUtils;
    }
}

3.創(chuàng)建Dao類

• 1.傳入Session硅堆，會(huì)導(dǎo)致上一層和hibernate緊密耦合 不推薦
• 2.獲取與當(dāng)前線程綁定Session 是同一個(gè) 多個(gè)Dao可以使用同一個(gè)事務(wù)

public class DepartmentDao {
    
    /**
     * 1.傳入Session塌碌，會(huì)導(dǎo)致上一層和hibernate緊密耦合 不推薦
     * 2.獲取與當(dāng)前線程綁定Session 是同一個(gè) 多個(gè)Dao可以使用同一個(gè)事務(wù)
     * 
     * 
     * */
    public void save(Department dept) {
        Session session = HibernateUtils.gethUtils().getSession();
        session.save(dept);
        System.out.println("保存");
    }

}

業(yè)務(wù)調(diào)用

    //1.配置文件配置屬性
    public static void manageSession() {
        
        //開啟事務(wù)
        Transaction transaction = HibernateUtils.gethUtils().getSession().beginTransaction();
        DepartmentDao dao=new DepartmentDao();
        Department dept = new Department();
        dept.setName("綁定");
        
        Department dept1 = new Department();
        dept1.setName("綁定1");
        
        Department dept2 = new Department();
        dept2.setName("綁定2");
        dao.save(dept);
        dao.save(dept1);
        dao.save(dept2);
        //提交事務(wù)
        transaction.commit();
    }

使用Spring時(shí)不用這些

批量處理

• 建議使用JDBC AP

//建議使用JDBC API
    
public static void batch() {
    StandardServiceRegistry registry = new StandardServiceRegistryBuilder().configure().build();// 配置文件configure()
    SessionFactory sessionFactory = new MetadataSources(registry).buildMetadata().buildSessionFactory();
    Session session = sessionFactory.openSession();
    Transaction transaction = session.beginTransaction();
    session.doWork(new Work() {
        @Override
        public void execute(Connection connection) throws SQLException {
        //這里處理效率最高
        }
    });
    transaction.commit();
    session.close();
    sessionFactory.close();
    }