Research And Implementation Of Lightweight JAVA EE Framework

Along with the popularity of J2EE,more and more softwares begin to use J2EE technology.but J2EE's core API is very complicated,especially its multilayer structure,that increase the cost of software.So a good design pattern ,a good framework will be the key success factor of a J2EE project.J2EE's official EJB API is too complicated,it has many defects.The most popular light framework called SSH is a combination of Struts,Spring and Hibernate,and it's difficult to being extended and changed.This article use the basic J2EE patterns and APIs,to redisign the J2EE's 3 layer structure and try to work out a new and good framework to replace the old one.In this article,first we researched the basic theories and patterns of J2EE,then we talk about the standard struture of a J2EE framework.At last,we give out a new design of a framework and discuss it through the 3 layers including the data access layer ,the business logic layer and the Web layer.In the end,as to prove the framework is successful and usable,we use the framework to finish a classic project-Petstore,through the project ,we discuss the application of the framework and the shortage.