n层架构

2层架构

2层架构_+_entity

3层架构_+_entity_+_service

3层架构_+_entity_+_service_+_hibernate

N层架构_+_entity_+_service_+_hibernate实现DAO

N层架构_+_entity_+_service_+_hibernate实现DAO_+_impl

N层架构_+_entity_+_service+_impl_+_hibernate实现DAO_+_impl

N层架构_+_entity_+_service+_impl_+_hibernate实现DAO_+_impl_+_struts

N层架构_+_entity_+_service+_impl_+_hibernate实现DAO_+_impl_+_struts_+_spring_1

N层架构_+_entity_+_service+_impl_+_hibernate实现DAO_+_impl_+_struts_+_spring_1_+_DTO