Research On Study And Implementation Of J2EE Lightweight Framework

Nowadays the technology of J2EE has been applied widely in many fields.From the viewpoint of the designment,the application of J2EE technology can be divided three layers architecture,which are View layer,Business layer and Data persistence layer。These three layers are alternatively supported by the techonology of WEB and EJB.The technology of WEB supports the View layer, meanwhile, Business layer and Data persistence layer are supported by the techonology of EJB.With the rapid and constant development of the techonology of J2EE,there are a lots of Lightweight Frameworks corresponding to every layer of the designment of J2EE technology。In fact,the development of Lightweight Framework boosts the development of J2EE technology and Lightweight Framework has been the basic of the following Architecture of J2EE technology.In this paper, I studied the frame technology , especially on the J2EE Lightweight Framework。At first ,I studied the J2EE technology and analyzed some source codes of Lightweight Framework,on which basis,I design the System architecture of J2EE Lightweight framework,then I work hard to devided the Lightweight Framework and design the component of the every layer.these component includes: Knowledge base component,MVC component,IOC component,AOP component and O/R mapping component etc.In succedent chapter, I introduced the designment of Knowledge base component and MVC component,and finally emphasized on introducing the designment and realization of business layer and persistence layer in detail。At last, I have brought forth the application and validation of IOC component and AOP component in relizition of O/R Mapping component.