| In the last few years, J2EE appears as the standard platform which is a kind of technology to build enterprise applications, and it matures, develops progressively. The platform uses a large amount of different technical standards. It offers n-tier distributed application model, reused components ability, unified security model and flexible transaction process, it offers strong and stable service for developing and disposing enterprise application.According to the criterion and system of the electric power calling, our purpose is to develop a system that the users can apply and scrutinize the project on this system.Compared JSP pattern 1 with JSP pattern 2, Struts framework, we can realize the superiority of Struts framework, which is based on MVC pattern. Through this paper, we can draw a conclusion that it is necessary to use design pattern in this system. According to the analysis of the project requirement, we put forward the project manage system based on Struts framework, and use some design patterns to improve the quality of the codes. According to the application, we divide the system to three subsystem. Through the analysis and implement of the message module and the meeting arrangement module, we know how the modulization of the system realize. We can get the solutions of handling bug mechanism and managing popedom mechanism, and we also can find the solutions of the two key technology. At last the paper describe how to optimize the performance of the system.Adapting to the requirement of users and the developing course, we designed the system totally according to the standards of J2EE. Front desk interface use JSP technology, it is adopt Servlet is it develop to come partly to control, business logic use Struts and EJB technology come encapsulation, using the server to adopt Weblogic of BEA Company which supports J2EE standard, what the backstage supporter's database is selected for use is Oracle9i, the purpose is to make the system work well on different Operation Systems. |
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