【摘要】：隨著計(jì)算機(jī)技術(shù)和寬帶網(wǎng)絡(luò)的飛速發(fā)展,高校網(wǎng)絡(luò)教學(xué)平臺(tái)為高校教學(xué)提供了一種新的手段和方式。大力開展網(wǎng)上教學(xué),注重學(xué)生對(duì)教學(xué)資源的真實(shí)需求,推動(dòng)信息技術(shù)與課程信息的結(jié)合,這是推動(dòng)教學(xué)改革和培養(yǎng)創(chuàng)新人才的有效途徑,也是教育技術(shù)在教學(xué)中充分應(yīng)用的體現(xiàn)。而高校網(wǎng)絡(luò)教學(xué)平臺(tái)是基于互聯(lián)網(wǎng)實(shí)現(xiàn)網(wǎng)上教學(xué)的基礎(chǔ)條件。本論文面向高校課程教學(xué)需要,針對(duì)課程教學(xué)各主要環(huán)節(jié)的特點(diǎn)和需求,研究開發(fā)了能支持選課管理、授課管理、答疑互動(dòng)、音視頻交流、在線考試等多項(xiàng)功能的網(wǎng)絡(luò)教學(xué)平臺(tái)。該網(wǎng)絡(luò)教學(xué)平臺(tái)采用了B/S結(jié)構(gòu)模式進(jìn)行設(shè)計(jì)開發(fā),對(duì)網(wǎng)絡(luò)平臺(tái)的功能進(jìn)行了細(xì)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(gòu),使用MySQL作為后臺(tái)數(shù)據(jù)庫(kù),以Eclipse為主要開發(fā)工具,利用JSP,WebRTC等編程語(yǔ)言和技術(shù),最終開發(fā)完成了具備上述基本功能的高校網(wǎng)絡(luò)教學(xué)平臺(tái)。該網(wǎng)絡(luò)教學(xué)平臺(tái)系統(tǒng)主要分為學(xué)生模塊、教師模塊、管理員模塊。學(xué)生模塊實(shí)現(xiàn)了對(duì)教學(xué)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(shí)現(xiàn)了對(duì)各種教學(xué)資源的動(dòng)態(tài)管理、答疑等。管理員負(fù)責(zé)后臺(tái)的更新維護(hù),主要是負(fù)責(zé)學(xué)生及教師的管理、公告的管理、試題管理、教學(xué)資源管理、留言版的更新維護(hù)功能。本文詳細(xì)介紹了目標(biāo)網(wǎng)絡(luò)教學(xué)平臺(tái)的系統(tǒng)需求分析和面向?qū)ο蠼＝Y(jié)果,描述了系統(tǒng)的總體設(shè)計(jì)、功能模塊設(shè)計(jì)、數(shù)據(jù)庫(kù)邏輯設(shè)計(jì)和表結(jié)構(gòu)設(shè)計(jì),并介紹了基于struts2開發(fā)架構(gòu)的網(wǎng)絡(luò)教學(xué)平臺(tái)的開發(fā)實(shí)現(xiàn),介紹了各部分的功能及部分關(guān)鍵代碼,并詳細(xì)介紹了基于WebRTC的音視頻直播及交流平臺(tái)的功能及實(shí)現(xiàn)。對(duì)所開發(fā)的網(wǎng)絡(luò)教學(xué)平臺(tái)的功能測(cè)試和性能測(cè)試表明所開發(fā)的平臺(tái)功能正確合理、運(yùn)行流暢,通過文本、音頻和視頻等多形式交流提高互動(dòng)交流效果,能為高校教學(xué)活動(dòng)提供較好的支持,具有良好的應(yīng)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(xué)位授予單位】：北京工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TP311.52

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