J2ee-based Inventory Management System

To solve the problems of warehouse management system using c/s structure, ideveloped a warehouse management system using three tiers B/S structure to meet therequirement of enterprises working in web environment.Based on existing warehouse management system, the goal of this paper is todesign and implement a warehouse management system based on J2EE. There are sixgroups of functions fulfilled in this system, including basic information management,cargo management, stocks query management, voucher query management, stocksaccount management and statistic analysis management.This warehouse management system consists of database, persistence tier, webtier. Database uses Sqlserver 2000 of Microsoft. Persistent tier uses Entity Beantechnology, using O/R Mapping technology to separate database and business tier,lowers the dependence of business tier on database system. Business tier is realizedusing Session Bean technology, in business tier I adopt many design patterns andutilize object's characteristics such as polymorphic, inheritance, interface. Throughthese technologies, the expansibility, agility and plug ability of system are greatlyenhanced, so maintenance costs drop. I use Struts framework to realize Web tier.Through Struts framework, front pages view, controller and model separated, coupleis reduced.This paper introduces the design of business tier and database, realization ofpersistence tier and Web tier, exhibiting how to use advanced j2ee framework todevelop an application and what is the j2ee's advantages.