摘 要:在信息技术不断发展的今天，计算机科学技术逐渐成熟，并为人们提供了大量的方便与需求，它已经进对人类社会各个领域发挥着越来越重要的作用。网络答疑系统是基于WEB的应用程序，并且以互联网为传播媒介来实现远程教育。系统主要讲述了开发的基本过程，设计开发中运用了ASP.NET技术与C#语言、SQL等相关技术，根据面向对象原理，采用了基于B/W/S三层体系结构。以IIS为服务器，SQL server 2008为数据库平台，提供一个师生交流的平台、相互探讨的网络空间,使学生们可以在获取知识时的同时更具有主动性。系统包括了即时答疑，文件资源的共享，问题及疑问解答的管理，后台数据库信息的管理和维护等模块。54044

毕业论文关键词：ASP.NET；在线答疑；B/W/S结构；SQL server

Abstract: With the constant development of information technology today,computer science and technology matures, and provides convenience and needs a lot of people, it has played a more and more important role in every field of human society. Network question answering system is a WEB based application,and with the Internet as the media to realize the remote education. System mainly describes the basic process development, design and development in the use of ASP.NET technology and C# language, SQL and other related technologies,based on object oriented principle, the three layer system structure based on B/W/S. To IIS for the server, SQL Server 2008 as the database platform, provide a platform for the exchange of teachers and students, to explore each other in cyberspace, so that students can acquire knowledge in time and more active.The system includes the immediate answering, file sharing, question and answer questions management, management and maintenance of the background database information module.

Keywords: ASP.NET; online Q & A; B/W/S structure; SQL server

目    录

1 前言 3

1.1 概述 3

1.2 目的和意义 3

1.3 国内外现状分析 3

2 功能需求 4

2.1 需求分析 4

2.2 开发工具及思路 4

2.3 ASP.NET技术介绍 5

2.4 用例图 5

3 系统总体设计 7

3.1 系统前台功能结构图 7

3.2 系统后台功能结构图 7

4 数据模型设计 8

4.1 E-R模型 8

4.2 数据表设计表 10

5 主要功能模块设计与实现 13

5.1 前台功能模块实现 13

5.1.1即时发言模块 13

5.1.2文件共享模块 15

5.1.3发表疑问模块 17

5.1.4知识扩展模块 20

5.1.5班级公告模块 20

5.2 后台主要功能模块实现 21

5.2.1 用户管理模块 21

5.2.2 文件管理模块 23

5.2.3 疑问管理模块 23

5.2.4 网站链接模块 24

结 论 25