【摘要】：隨著互聯(lián)網(wǎng)和Web技術(shù)的發(fā)展,Internet迅速進(jìn)入各行各業(yè)、千家萬戶。Web應(yīng)用系統(tǒng)具有龐大的用戶群體,同時產(chǎn)生了多種不同的終端類型和不同的用戶需求。如何使得Web系統(tǒng)適應(yīng)PC、智能手機(jī)、平板電腦等不同硬件設(shè)備及不同瀏覽器平臺的訪問,滿足用戶服務(wù)質(zhì)量的要求,值得探索。特別是隨著國內(nèi)3G業(yè)務(wù)的迅速發(fā)展以及智能手機(jī)的廣泛應(yīng)用,傳統(tǒng)基于桌面的Web系統(tǒng)如何克服移動設(shè)備屏幕尺寸小帶寬有限和不便于輸入等限制條件,解決系統(tǒng)運(yùn)行時可能產(chǎn)生的布局混亂、功能失效等問題,給用戶提供良好體驗(yàn)。因此,迫切需要一種具有自適應(yīng)能力的Web應(yīng)用系統(tǒng),能夠調(diào)整自身的行為和結(jié)構(gòu),適應(yīng)不同終端平臺的訪問。為此,學(xué)習(xí)并研究了動態(tài)軟件體系結(jié)構(gòu)相關(guān)理論和軟件自適應(yīng)技術(shù),并將它們應(yīng)用于Web系統(tǒng)的設(shè)計與開發(fā),在終端類型等方面解決了Web系統(tǒng)的自適應(yīng)性。 本文所做的主要工作如下： (1)深入分析Web系統(tǒng),基于動態(tài)體系結(jié)構(gòu),提出了自適應(yīng)Web應(yīng)用系統(tǒng)的三層架構(gòu)。它們分別是用戶層、自適應(yīng)層和系統(tǒng)服務(wù)層。對其中的關(guān)鍵層自適應(yīng)層做了詳細(xì)分析設(shè)計,描述了自適應(yīng)算法。 (2)利用動態(tài)體系結(jié)構(gòu)描述語言D-ADL對自適應(yīng)Web系統(tǒng)進(jìn)行刻畫,得出系統(tǒng)動態(tài)體系結(jié)構(gòu)圖。 (3)將上述研究結(jié)果應(yīng)用到網(wǎng)絡(luò)自主學(xué)習(xí)平臺案例系統(tǒng)的開發(fā)中。用D-ADL對案例系統(tǒng)的動態(tài)體系結(jié)構(gòu)進(jìn)行了詳細(xì)描述,說明了構(gòu)件、連接件和配置。 (4)利用VS2010開發(fā)平臺,前端頁面采用HTML5并結(jié)合JQuery Mobile框架,算法實(shí)現(xiàn)編寫采用C#語言,后臺數(shù)據(jù)庫采用SQL Server2005,實(shí)現(xiàn)了一個自適應(yīng)的網(wǎng)絡(luò)自主學(xué)習(xí)平臺。 (5)將實(shí)現(xiàn)的案例系統(tǒng)在不同的終端設(shè)備和瀏覽器上進(jìn)行測試,運(yùn)行良好。從而實(shí)證了本文所提出的算法及設(shè)計的可行性和有效性。
[Abstract]:With the development of Internet and Web technology, Internet has rapidly entered into various industries, thousands of families. Web application system has a large user group, and has produced a variety of terminal types and different user needs. How to make Web system adapt to different hardware devices such as PC, smart phone, tablet computer and different browser platforms, and meet the requirements of user service quality is worth exploring. Especially with the rapid development of 3G services in China and the wide application of smart phones, the traditional desktop based Web system can overcome the limitations such as limited screen size, limited bandwidth and inconvenient input of mobile devices. Solve the problems of layout confusion, function failure and so on, and provide users with a good experience. Therefore, there is an urgent need for an adaptive Web application system, which can adjust its behavior and structure to meet the access of different terminal platforms. This paper studies and studies the theory of dynamic software architecture and software adaptive technology, and applies them to the design and development of Web system, and solves the self-adaptability of Web system in the aspect of terminal type and so on. The main work of this paper is as follows: (1) the Web system is deeply analyzed. Based on the dynamic architecture, a three-tier architecture of adaptive Web application system is proposed. They are the user layer, the adaptive layer and the system service layer. The key layer adaptive layer is analyzed and designed in detail, and the adaptive algorithm is described. (2) dynamic architecture description language (D-ADL) is used to describe the adaptive Web system, and the dynamic architecture diagram of the system is obtained. (3) apply the above research results to the development of the case system of network autonomous learning platform. The dynamic architecture of the case system is described in detail with D-ADL, and the components, connectors and configurations are explained. (4) using the VS2010 development platform, the front-end page adopts HTML5 and JQuery Mobile frame, the algorithm is written in C # language, and the background database uses SQL Server2005, to realize an adaptive network autonomous learning platform. (5) the case system is tested on different terminal devices and browsers. The feasibility and effectiveness of the proposed algorithm and design are demonstrated.
【學(xué)位授予單位】：五邑大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP393.09

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