Study Of J2EE Web Framework

With the development of network, most applications based on internet are built asthe infrastructure of enterprise information systems. As the most popular distributedcomputing platform, J2EE has come to be the crucial part of large-scale enterpriseapplications based on Web.The web application framework based on J2EE provides reused architecture fordeveloping web applications based on Java server side technology, it makes Web-tiertechnologies easier to use, helping application developers to concentrate on businesslogic. Based on the development of bank asset management system and facilitiesmanagement system, the paper brings forward the design and implementation of theWeb framework.Firstly, this paper introduces the relevant concepts such as components andframework, and then discusses the architecture of J2EE platform; the objective of J2EEweb framework is also defined. Based on the MVC MODEL 2 and J2EE server sidetechnology , the paper discuss the design and implementation of the Web application indetails .The architecture of the framework mainly include front controller, theinteraction between Web tier and EJB tier, view components and exception handler.Then we use a test case to show how to use the framework in practice. Finally the goalfor the next stage is pointed out.