【摘要】：隨著計算機技術和寬帶網(wǎng)絡的飛速發(fā)展,高校網(wǎng)絡教學平臺為高校教學提供了一種新的手段和方式。大力開展網(wǎng)上教學,注重學生對教學資源的真實需求,推動信息技術與課程信息的結合,這是推動教學改革和培養(yǎng)創(chuàng)新人才的有效途徑,也是教育技術在教學中充分應用的體現(xiàn)。而高校網(wǎng)絡教學平臺是基于互聯(lián)網(wǎng)實現(xiàn)網(wǎng)上教學的基礎條件。本論文面向高校課程教學需要,針對課程教學各主要環(huán)節(jié)的特點和需求,研究開發(fā)了能支持選課管理、授課管理、答疑互動、音視頻交流、在線考試等多項功能的網(wǎng)絡教學平臺。該網(wǎng)絡教學平臺采用了B/S結構模式進行設計開發(fā),對網(wǎng)絡平臺的功能進行了細致的功能劃分和優(yōu)化。開發(fā)中采用了最新的Struts2開發(fā)架構,使用MySQL作為后臺數(shù)據(jù)庫,以Eclipse為主要開發(fā)工具,利用JSP,WebRTC等編程語言和技術,最終開發(fā)完成了具備上述基本功能的高校網(wǎng)絡教學平臺。該網(wǎng)絡教學平臺系統(tǒng)主要分為學生模塊、教師模塊、管理員模塊。學生模塊實現(xiàn)了對教學資源的自由獲取,以及以文本、音頻、視頻等形式與教師的便捷交流。教師模塊實現(xiàn)了對各種教學資源的動態(tài)管理、答疑等。管理員負責后臺的更新維護,主要是負責學生及教師的管理、公告的管理、試題管理、教學資源管理、留言版的更新維護功能。本文詳細介紹了目標網(wǎng)絡教學平臺的系統(tǒng)需求分析和面向對象建模結果,描述了系統(tǒng)的總體設計、功能模塊設計、數(shù)據(jù)庫邏輯設計和表結構設計,并介紹了基于struts2開發(fā)架構的網(wǎng)絡教學平臺的開發(fā)實現(xiàn),介紹了各部分的功能及部分關鍵代碼,并詳細介紹了基于WebRTC的音視頻直播及交流平臺的功能及實現(xiàn)。對所開發(fā)的網(wǎng)絡教學平臺的功能測試和性能測試表明所開發(fā)的平臺功能正確合理、運行流暢,通過文本、音頻和視頻等多形式交流提高互動交流效果,能為高校教學活動提供較好的支持,具有良好的應用前景。
[Abstract]:With the rapid development of computer technology and broadband network, the network teaching platform in colleges and universities provides a new means and way for university teaching. It is an effective way to promote teaching reform and cultivate innovative talents to vigorously carry out online teaching, pay attention to students' real demand for teaching resources, and promote the combination of information technology and curriculum information, and it is also the embodiment of the full application of educational technology in teaching. The network teaching platform of colleges and universities is the basic condition to realize online teaching based on Internet. In order to meet the needs of curriculum teaching in colleges and universities, according to the characteristics and needs of the main links of course teaching, this paper studies and develops a network teaching platform which can support the functions of course selection management, teaching management, question answering interaction, audio and video communication, online examination and so on. The network teaching platform adopts B / S structure mode to design and develop, and the function of the network platform is divided and optimized in detail. In the development, the latest Struts2 development architecture is adopted, MySQL is used as the background database, Eclipse is used as the main development tool, and JSP,WebRTC and other programming languages and technologies are used to develop the network teaching platform of colleges and universities with the above basic functions. The network teaching platform system is mainly divided into student module, teacher module and administrator module. The student module realizes the free access to teaching resources and the convenient communication with teachers in the form of text, audio, video and so on. The teacher module realizes the dynamic management and answering questions of all kinds of teaching resources. The administrator is responsible for the background update maintenance, mainly responsible for the management of students and teachers, announcement management, test question management, teaching resources management, message version update maintenance function. This paper introduces in detail the system requirement analysis and object-oriented modeling results of the target network teaching platform, describes the overall design of the system, the design of functional modules, the design of database logic and the design of table structure, introduces the development and implementation of the network teaching platform based on struts2 development architecture, introduces the functions and some key codes of each part, and introduces in detail the functions and realization of audio and video live broadcast and communication platform based on WebRTC. The function test and performance test of the developed network teaching platform show that the function of the developed platform is correct and reasonable, running smoothly, improving the interactive communication effect through text, audio and video and other forms of communication, which can provide good support for teaching activities in colleges and universities, and has a good application prospect.
【學位授予單位】：北京工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TP311.52

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