add sql and cart.txt
add sql and cart.txt
add Scanner class
update spring config
add Pos class
add model class
add main function
update spring config
add fields
change Promotion to abstract
change parameter
add PromotionDiscount Test
add dao class
add getCategoryById
update category dao
add DataResource
update CategoryDaoImpl
add datasource and nameParameterJdbcTemplate
update category name
add function in itemDao