Dynamic Cost Calculating System Based On EJB For Power Plant

J2EE is the first choice of building the enterprise application,and EJB is the most popular technical specification.The architecture,life cycle,the factors influencing properties and design pattern of EJB are studied in this article.On the basis of the theory, we set up the Dynamic Cost Accounting and Analysis System for Power Plant base on multi-tier structure of EJB,to the different constructing of the network environment of China Resources(Jinzhou) Power Co.,Ltd.And then database structure and business logic structure are designed.At the end,data storage layer and EJB are realized,and the Dynamic Cost Accounting and Analysis System for Power Plant base on EJB is realized. Application of this method and the development of a power plant basic data processing EJB can be widely extended to the production of the power plant,to analyze power generation cost real-timely.