Application of Design Patterns and Component Technology to Business Logic Layer
设计模式及组件技术在业务逻辑层中的应用

In the post-maintenance of software application,the change of business logic layer occupies the majority,but some traditional development frames,for example structs,spring and so on,which based on MVC pattern has only realized the model-view-control solution coupling,however the business also has the close coupling relations in the business logic layer.If a change happens in the module,that will cause a chain-like reflection and a series of related modules change.This article uses the business case report a...