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 framework 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 incre