网络教学系统教学应用现状分析.doc

摘要Abstract This paper analyses the real practicality of the E-Learning application in and out of the country. It puts forword that there has been great progress in our country, but there exists lots of shortage at the aspects of implement of technology, thoughts of management, realization of system. These impact the quality and efficiency of the E-Learning in different points of view. This paper, on the basis of the analysis of NTLS requirements, and of the study of the popular technology to realize the similar systems, discusses the realization of NTLS based on J2EE. J2EE is considered as a popular kind of the technique standard of the software exploitation. It not only succeeds to all the virtue of JAVA, but it has more advanced idea at the aspects of the deployment, enlargement, and management of the software. Thus, J2EE will be quoted into the exploitation of the NTLS. And it also provides the important assurance for the system achievement ultimately.In this section about the design and realization of the system, this paper explains how to design the whole system takes the technology of J2EE and how to design the data construction and how to finally realize every function mode of the system. At last, this paper concludes the disadvantages of the NTLS, and gives some advises and respects. Key words: On-line teaching system；J2EE；Software Project Management；Struts ；Data Construction Function Mode 目 录 第1章 绪论 1 1.1课题背景 1 1.2选题目的 3 1.3设计指导思想 3 第2章 项目开发管理 4 2.1项目管理方法 4 2.2开发周期划分 5 2.3开发过程中的几项制品 6 2.3.1项目需求分析 6 2.3.2项目需求变更分析 8 2.3.3系统解决方案设计 9 2.3.4系统构架 10 2.3.5系统开发环境 12 第3章 数据库结构设计 14 3.1数据库系统简介 14 3.2 JAVA中的数据库访问技术—JDBC 14 3.3数据库的连接实现 14 3.4数据库设计 15 第4章 系统设计与实现 22 4.1系统设计与实现原则 22 4.2系统工作流程分析 23 4.3在线教学模块设计与实现 24 4.3.1工作流程分析 24 4.3.2数据库设计与实现 26 4.3.3实现中的问题分析 26 4.4教学资源管理模块设计与实现 31 4.4.1工作流程分析 31 4.4.2数据库设计与实现 32 4.5网上交流模块设计与实现 32 4.6辅助管理模块设计与实现 32 4.6.1工作流程分析 32 4.6.2数据库设计与实现 32 4.6.3实现中的问题分析 33 4.7系统测试 34 结 语 35 参考文献 37 附 录 38 后 记 48 第1章 绪论 1.1课题背景 网上教学是