Hibernate批量提交

批量插入(Batch inserts) 
如果要将很多对象持久化,你必须通过经常的调用 flush() 以及稍后调用 clear() 来控制第一级缓存的大小。 

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, same as the JDBC batch size //20,与JDBC批量设置相同 
        //flush a batch of inserts and release memory: 
        //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(); 

  

原文地址:https://www.cnblogs.com/wujixing/p/5465425.html