用EJB模型实现的简单的购物车构件，可以实现商品添加，删除，查看，结算，清空功能。-EJB model implementation with a simple shopping cart component, can be achieved merchandise add, delete, view, settlement, clearing functions.

opencart clean cart functoin

Struts购物车的制作，可以进行各项操作-Making Struts shopping cart, you can operate the............