| With the development of InternetlIntranet and multimedia technologies,remote education shows its educational potential advantages gradually.Remote examination is a significant part of remote education.With the teaching content continually enriched and an increasing number of people entering for study,the online examination system is required to upgrade itself more functions continually,and to resolve the problem of overweight loading by mass access.Therefore,building an examination system with high flexibility stability, extensibility and maintainability is important for the development of remote education.So that,This paper studies a design and project of the dynamic on-line test system based on J2EE and XML.In the paper,the thesis describes the background of computer basis test Secondly,the thesis describesthe on-line test key technologies.Discussing the dynamic J2EE developing technology and the developing history of XML,achieve the test depiction by XML and how to combination J2EE and XML.Pointing out the traditional test's defect and then tells the test based on the network is the development direction in future Especially.The structural framework of the on-line test system has been built in the paper,based on J2EE and XML.UML is integrated into the development of web application in virtue of Rose to get visual system model.The system requirements and design models are defined by UML diagrams such as Use Case diagram,Class diagram,Sequence diagram,Collaboration diagram,Component diagram,and Deployment diagram.Web pages,component objects, data tables and databases are all regarded as a class or an object.The modeling process bases on the views of real world.The design and development process is established according to the views of Software Engineering.The online examination system which bases on J2EE can fully use the JSP,JavaBean,Servlet,XML, flexibility of three-tier model to optimize the system performance and to enhance.the development value. |
PDF Full Text Request