Hibernate批量插入的方法

  Session session = sessionFactory.openSession(); 
   Transaction tx = session.beginTransaction();   
   for ( int i=0; i<100000; i++ ) { 
    Customer customer = new Customer(.....); 
    session.save(customer); 
    if ( i % 20 == 0 ) { 
      //20，与JDBC批量设置相同 
       //将本批插入的对象立即写入数据库并释放内存 
        session.flush(); 
       session.clear(); 
    } 
  } 
   
  tx.commit(); 
  session.close();