Small Erp System Based On J2ee Design And Realization

Enterprises today need to extend their reach, reduce their costs, and lower the response times of their services to customers, employees, and suppliers.Typically, enterprise applications that provide these services need to be: Secure, Reliable and scalable.Currently, the distributed system based on Java 2 Platform, Enterprise Edition (J2EE) has been a new trend of enterprise applications. It reduces the complexity of developing multitier, enterprise services. J2EE applications can be rapidly deployed and easily enhanced as the enterprise responds to competitive pressures. EJB plays a very important role that which constructs software system. EJB can shorten the developing cycle and cut the cost and improve the software quality.This paper studied the structure, implementation technology and application of small erp system based on Java 2 Platform, Enterprise Edition (J2EE), Based on the study the autor has implemented an antetype system. The paper emphased on the following issues:Unified Modeling Language (UML)Java Servlets technology, JavaServer Pages technology (JSP)Enterprise Java Bean (EJB)Java Naming and Directory Interface (JNDI)Session Facade pattenResearch and using dynamic authority assignmentThe purpose of this paper is researching and using J2EE method, which Serves as the theory basis; and using EJB develop business layer; and using Session Facade patten (using SessionBean encapsulate EntityBean ) ,it can separate presentation logic and business logic indeed. Design and implementation of Dynamic Authority Assignment and Data Integrality, which setting a solid basis for the whole software.In this item, personally takes the item main participation, participates the item overall plan discussion, the design and the development of logic business layer and persistent layer.