發(fā)布時間：2018-05-10 16:20

  本文選題：Dom樹 + Htmlparser�。� 參考：《大連理工大學(xué)》2012年碩士論文

【摘要】：隨著新興移動終端的飛速發(fā)展,其優(yōu)秀的操控體驗并攜帶多種傳感器,使人們隨時隨地的獲取更多的信息。隨之移動互聯(lián)網(wǎng)成為人們生活中不可或缺的一部分,人們的工作、學(xué)習(xí)、生活、娛樂都將依賴著移動互聯(lián)網(wǎng),人們開始更多的在終端設(shè)備上獲取信息。但是部分中低端手機不能瀏覽Html頁面,即使可以瀏覽也因為WEB頁面是為PC設(shè)計的,因此在移動終端上瀏覽體驗極差、頁面較大,用戶訪問流量、時間、帶寬成本較大。 因此如何將Html頁面轉(zhuǎn)換成適合在移動終端上瀏覽的頁面,為眾多的移動終端應(yīng)用或移動搜索引擎提供低成本、快速、有良好瀏覽體驗的網(wǎng)頁信息瀏覽能力有著極其重要意義,是支持移動互聯(lián)網(wǎng)和傳統(tǒng)互聯(lián)網(wǎng)信息融合的關(guān)鍵。本文針對上述問題提出了一種服務(wù)器端網(wǎng)頁轉(zhuǎn)換系統(tǒng)。系統(tǒng)將Html頁面轉(zhuǎn)換為XHtml頁面,打破了部分手機不能瀏覽Html頁面的技術(shù)性限制。更重要的是系統(tǒng)將對網(wǎng)頁內(nèi)容進行解析、識別,過濾不需要的內(nèi)容,重新對網(wǎng)頁進行排版、適配和分頁,對圖片進行壓縮處理,最后拼接整個頁面返回給用戶,該網(wǎng)頁的版式、內(nèi)容、布局和展現(xiàn)效果更適合移動終端。 文中詳細闡述了系統(tǒng)的總體方案、詳細設(shè)計和實現(xiàn),為了配合網(wǎng)頁轉(zhuǎn)換的實時和高效,系統(tǒng)主要設(shè)計了前端模塊、緩存模塊、抓取模塊和轉(zhuǎn)換模塊,前端模塊負責(zé)解析用戶請求和各個模塊的網(wǎng)絡(luò)交互。在收到用戶請求后將對頁面進行實時抓取,然后交給后端進行網(wǎng)頁轉(zhuǎn)換以實現(xiàn)實時轉(zhuǎn)換的功能。系統(tǒng)中加入了緩存模塊,使重復(fù)請求有快速響應(yīng)處理,并且系統(tǒng)采用異步框架實現(xiàn),提高系統(tǒng)的處理性能。在實現(xiàn)系統(tǒng)后進行測試,結(jié)果表明滿足上述設(shè)計要求,并進行大量的手工轉(zhuǎn)換測試,85%以上的頁面展現(xiàn)效果良好,版式合理,頁面壓縮率高達76%,平均一次請求處理時間在500ms以內(nèi),緩存命中率23.85%,經(jīng)每秒100個請求的壓力測試,系統(tǒng)資源占用合理、程序穩(wěn)定,符合設(shè)計需求,給用戶帶來低成本、快速卓越的瀏覽體驗,使人們更便捷地隨時隨地獲取信息找到所求。
[Abstract]:With the rapid development of new mobile terminals, its excellent control experience and carry a variety of sensors, so that people can get more information anytime and anywhere. With this, mobile Internet becomes an indispensable part of people's life, people's work, study, life, entertainment will depend on mobile Internet, people begin to get more information on terminal devices. However, some low-end mobile phones can not browse Html pages, even if they can browse, because WEB pages are designed for PC, so the browsing experience on mobile terminals is extremely poor, the pages are large, user access traffic, time, bandwidth cost is high. Therefore, how to convert Html pages into pages suitable for browsing on mobile terminals is of great significance in providing low-cost, fast and good browsing experience for many mobile terminal applications or mobile search engines. Is the support mobile Internet and the traditional Internet information fusion key. In this paper, a server-side web page conversion system is proposed to solve the above problems. The system transforms Html page into XHtml page, breaking the technical restriction that some mobile phone can't browse Html page. What is more important is that the system will parse, identify, filter the unwanted content of the web page, rearrange, adapt and paginate the page, compress the picture, and finally splice the whole page back to the user, the layout of the page. Content, layout and presentation effects are more suitable for mobile terminals. In this paper, the overall scheme, design and implementation of the system are described in detail. In order to cooperate with the real time and high efficiency of web page conversion, the system mainly designs front-end module, cache module, grab module and conversion module. The front-end module is responsible for parsing the user request and the network interaction of each module. After receiving the user's request, the page will be fetched in real time, and then transferred to the back end to realize the function of real-time conversion. The cache module is added to the system to make the repeated requests respond quickly and the asynchronous framework is adopted to improve the processing performance of the system. After the implementation of the system, the test results show that the above design requirements are satisfied, and a large number of manual conversion tests are carried out with 85% of the pages showing good results, reasonable layout, the compression ratio of the page is as high as 76%, and the average processing time of one request is less than 500ms. Cache hit rate 23.85, after 100 requests per second of the stress test, the system resources use is reasonable, the program is stable, meet the design needs, bring users low-cost, rapid and excellent browsing experience, Make it easier for people to get information at any time and anywhere to find out what they want.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TN929.53;TP393.092

【引證文獻】

相關(guān)碩士學(xué)位論文 前1條

1 楊同江;基于中間件的移動多媒體終端技術(shù)的研究與實現(xiàn)[D];北京郵電大學(xué);2013年

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本文編號：1870003