1 Session session = sessionFactory.openSession(); 2 Transaction tx = session.beginTransaction(); 3 for ( int i=0; i<100000; i++ ) { 4 Customer customer = new Customer(.....); 5 session.save(customer); 6 if ( i % 20 == 0 ) { //20, same as the JDBC batch size 7 //flush a batch of inserts and release memory: 8 session.flush(); 9 session.clear(); 10 } 11 } 12 tx.commit(); 13 session.close();
hibernate导入大量数据时,为了避免内存中产生大量对象,在编码时注意什么,如何去除?
这个问题,我如果我没记错的话,hibarnate官方手册中就说明了,也有demo,你可以查查;
具体的就是
http://zhidao.baidu.com/question/2201283544888578828.html?qbl=relate_question_3