【作者】 金琦；

【导师】 姚宇明； 李善平；

【作者基本信息】 浙江大学 ， 计算机应用， 2002， 硕士

【摘要】 人类社会已进入信息时代。信息技术的迅速发展加快了制造企业的现代化与信息化的进程。计算机技术与管理科学的结合促进了现代企业管理技术的形成。现代企业管理技术的目的是通过现代管理模式与计算机管理信息系统支持企业合理、系统地管理经营与生产，最大限度地发挥现有设备、资源、人、技术的作用，最大限度地产生企业经济效益。 在物料需求计划MRP(Material Requirements Planning)和制造资源计划MRPⅡ(Manufacturing Resource Planning)发展基础上产生了企业资源计划ERP(Enterprise Resource Planning)。ERP是一个集合企业内部的所有资源，进行有效的计划和控制，以达到最大效益的集成化管理信息系统。 随着计算机技术的发展，ERP系统由最初的主机系统向客户/服务器模式转变。基于C／S结构的ERP取得了较多的成功应用。但是越来越多的计算机系统由于三层式系统具有更好的扩展性，将原有的客户/服务器结构改为三层式／多层式机构。而Web技术的提出，越来越多的ERP系统开始转向基于Web的架构，浏览器成为三层／多层结构实质上的客户端。 针对这种需求，Sun公司提出了J2EE平台。J2EE是一种利用Java2平台来简化企业解决方案的开发、部署和管理相关的复杂问题的体系结构。J2EE体系结构提供中间层集成框架用来满足无需太多费用而又需要高可用性、高可靠性以及可扩展性的应用的需求。 本文提出基于J2EE的ERP应用系统，以三种基本概念方式来划分应用系统：传统的模块分解方式；模型-视图-控制器MVC(Model-View-Controller)体系结构；多层体系结构。这样整个系统成为一个多层的组件系统，以实现系统横向、纵向之间的弱耦合，使系统具备了灵活性、可重用性、可测性、可扩展性。 本文分三部分，第一章为第一部分，介绍了ERP系统的概念及其发展趋势。第二、三章为第二部分，介绍了ERP的历史发展过程、概念和思想内涵；应用体系结构发展过程；J2EE平台概念及其体系结构。第四、五章为第三部分，着重讨论了基于J2EE的ERP系统的设计和实现，还提出了使用J2EE设计模式进行系统性能优化。更多还原

【Abstract】 In the wake of the herald of information age, the rapid development of information technology speeds up the process of modernization of manufacturing industry. And the combination of computer technology and administration advances the formation of modern administration skills. By way of modern administration model and computer information system, modem administration skills aim to give full play to existing equipments, resources, manpower and technology and therefore produce economic benefit to the full.ERP (Enterprise Resource Planning) is emerged based on the development of MRP (Material Requirements Planning) and MRPII (Manufacturing Resource Planning). And ERP is an integrated management information system which aggregates, plans and controls effectively all the resources inside an enterprise to get biggest benefit.With the development of computer technology, the software system architecture adopts Client/Server architecture instead of mainframe architecture, and many ERPs in C/S architecture have made success. Currently, more and more systems move to the 3-tier or multi-tier system because the latter one shows better in scalability and reusability together with the emerging of Web technology, which makes web browsers the de facto client tier of m-tier system.Sun Microsystem Inc. provides J2EE platform for this requirement. J2EE is an architecture which is used to simplify the complications of development, deployment and management of enterprise solutions. J2EE architecture supplies middle-tier integrated framework to satisfy the requirement which needs a little cost but high availablity, high reliability and extensiblity.This thesis presents J2EE-based ERP system. My design partitions the application in three basic conceptual ways:Model-View-Controller(MVC) architecture,multi-tier architecture and traditional modular decomposition. These make the whole system become a multi-tier component system, loose-couple horizontally and vertically, provide flexibility, reusability, testability and extensibility.This thesis consists of three parts. The first part introduces the concept and trend of ERP system. The second part introduces the concept, development and intention ofERP; development of application architecture; concept and architecture of J2EE platform. The third part emphasizes the design and implementation of a J2EE-based ERP system, and presents the J2EE design pattern to optimize system’s performance.更多还原