hibernate。session

Question

C

ustomerDao cc=new CustomerDao();
        Customer  customer = new Customer();
        customer.setCustomerName("dssdsd");
        cc.save(customer);
        System.out.println("1");
        cc.save(customer);
        System.out.println("2");
        cc.save(customer);
        System.out.println("3");

为什么只有一个insert 语句呢、
Hibernate:
insert
into
customers
(Customer_name)
values
(?)
1
543409470
2
543409470
3

Answer 1

hibernate框架自带一级二级缓存, 当你执行过一边同样sql时候,第二次时候用的是缓存的 机制