【正文】 文本圖紙規(guī)范程度和對設(shè)計（論文）的介紹，回答問題情況等進(jìn)行綜合評價 ] 答辯委員會主任： （簽名） 委員： （簽名） （簽名） （簽名） （簽名） 答辯成績： 總評成績： 摘 要 隨著 信息技術(shù)的飛速發(fā)展，網(wǎng)絡(luò)已經(jīng)越來越普及，如今 利用網(wǎng)絡(luò)進(jìn)行各種教學(xué)活動已成為現(xiàn)實。這對現(xiàn)今高校的教學(xué)方法、教學(xué)模式的改革具有重要意義。本系統(tǒng)集成了 Struts2和 Spring兩個開源框架，將 Struts2 的 Action 作為 Spring 當(dāng)中的受管 Bean。 本系統(tǒng)主要實現(xiàn)了如下三方面的功能。 關(guān)鍵詞： B/S； Java Web；在線答疑系統(tǒng) ABSTRACT With the rapid development of information technology, working has bee increasingly popular. At present, using work to teach in various teaching activities has bee a reality. Online questionanswering system takes advantage of the work to implement the answering work, which breaks the limitations of time and space, conveniently and timely improves answering work, and increases the frequency of interactions among teachers and students. It is of great significance to the reform of teaching methods and teaching models in colleges and universities. Online questionanswering system is developed by Java Web technology, adopted the prevalent B/S structure, used as the background database and employed as the server. The system integrated two open source frameworks of Struts2 and Spring, and used the Struts2 Action as a managed Bean in Spring. Through dependency injection, Action can easily get references of the managed Bean that implements business function . The system realized the functions as follows. Students can login, register and modify their information, search and apply for courses, ask questions and participate in discussions, check their courses and questions, check applying processes。 Administrators can manage courses, questions, answers, student users, teacher users and administrator users. Keywords: B/S。online questionanswering system 湖南科技大學(xué)本科生畢業(yè)設(shè)計（論文） i 目 錄 第一章 前言 .................................................................................................................... 1 課題研究背景及意義 .............................................................................................. 1 研究背景 ........................................................................................................... 1 研究意義 ........................................................................................................... 1 國內(nèi)外現(xiàn)狀 .............................................................................................................. 1 第二章 系統(tǒng)分析 .......................................................................................................... 3 可行性分析 .............................................................................................................. 3 技術(shù)可行性分析 ............................................................................................... 3 經(jīng)濟(jì)可行性分析 ............................................................................................... 3 操作可行性分析 ............................................................................................... 3 需求分析 .................................................................................................................. 4 功能性需求分析 ............................................................................................... 4 非功能性需求分析 ........................................................................................... 5 系統(tǒng)流程圖 ....................................................................................................... 5 系統(tǒng)數(shù)據(jù)流圖 ................................................................................................... 7 第三章 系統(tǒng)總體設(shè)計 ................................................................................................. 9 項目規(guī)劃 .................................................................................................................. 9 系統(tǒng)總體結(jié)構(gòu) .......................................................................................................... 9 系統(tǒng)功能模塊 ......................................................................................................... 10 學(xué)生模塊功能定義 .......................................................................................... 10 教師模塊功能定義 .......................................................................................... 10 管理員功能模塊定義 ...................................................................................... 11 第四章 數(shù)據(jù)庫設(shè)計 ..................................................................................................... 13 數(shù)據(jù)庫分析 ............................................................................................................. 13 項目 ER 圖 ............................................................................................................. 13 數(shù)據(jù)庫表的設(shè)計 ..................................................................................................... 16 湖南科技大學(xué)本科生畢業(yè)設(shè)計（論文） ii 第五章 系統(tǒng)詳細(xì)設(shè)計與實現(xiàn) .................................................................................. 19 界面設(shè)計 ................................................................................................................. 19 系統(tǒng)分層的實現(xiàn) ..................................................................................................... 19 表示層的設(shè)計 .................................................................................................. 20 控制層的設(shè)計 .................................................................................................. 20 數(shù)據(jù)庫連接與操作的實現(xiàn) ..................................................................................... 20 數(shù)據(jù)源的配置 ...........................................................................