运用ssm框架实现在线购物，用户可以选择商品类型，进行商品的增删改查进购物车。系统管理员可对数据库里商品进行增删改查。用户还可以在线付款(The use of SSM fr a mework to achieve online shopping, users can choose the type of goods, the increase or deletion of goods into the shopping cart. The system administrator can inc