【摘要】： Web2.0是在Web1.0基礎(chǔ)上延伸出來的一類互聯(lián)網(wǎng)應(yīng)用模式,是一次向交互性更強(qiáng)網(wǎng)絡(luò)應(yīng)用的轉(zhuǎn)變。具有Web2.0風(fēng)格的Web是一個平臺,或者說,Web正在變得可配置化。以前的Web存在交互性弱的局限性,在更多情況下是人們獲取信息的平臺,而具有Web2.0風(fēng)格的Web成為人們交互的場所,提供給用戶更多交互性的功能。 當(dāng)前互聯(lián)網(wǎng)上視頻流媒體技術(shù)應(yīng)用近年來增長迅速。視頻流媒體技術(shù)可廣泛用在網(wǎng)上新聞發(fā)布、在線直播、網(wǎng)絡(luò)廣告、遠(yuǎn)程教育、實(shí)時視頻會議等。很多網(wǎng)站利用視頻流媒體播放新聞,開展音樂直播和點(diǎn)播服務(wù),企業(yè)和機(jī)構(gòu)采用視頻流媒體來提高效率,節(jié)約開支。寬帶網(wǎng)絡(luò)的發(fā)展進(jìn)一步拓展流媒體應(yīng)用。當(dāng)前傳統(tǒng)視頻媒體市場與寬帶網(wǎng)絡(luò)的應(yīng)用服務(wù)相融合,產(chǎn)生了寬帶VOD、在線音樂、遠(yuǎn)程教育、寬帶收費(fèi)電視等新的應(yīng)用。目前,互聯(lián)網(wǎng)上已有超過1700多家廣播電臺和電視臺實(shí)現(xiàn)了網(wǎng)上點(diǎn)播,世界上幾大有影響的媒體,如BBC、CNN、ABC、NBC等,都在網(wǎng)上開通了自己的網(wǎng)上廣播。國內(nèi)的一些廣播電臺和電視臺,例如cctv.com、btv.com等,也已經(jīng)在自己的網(wǎng)站上開始了試驗(yàn)性的視音頻點(diǎn)播。上述的Web2.0風(fēng)格網(wǎng)絡(luò)應(yīng)用的發(fā)展和當(dāng)前視頻流媒體技術(shù)的廣泛應(yīng)用為一種在線流媒體發(fā)布平臺的實(shí)現(xiàn)提供了良好的環(huán)境。 在應(yīng)用程序架構(gòu)方面,傳統(tǒng)的C/S(Client/Server,客戶端/服務(wù)器)結(jié)構(gòu)程序一些方面不盡適用。基于C/S結(jié)構(gòu)的軟件運(yùn)行速度快,可靠性高,客戶端的數(shù)據(jù)處理能力比較強(qiáng),具有很強(qiáng)的數(shù)據(jù)操作和事物處理能力。但是隨著分布式應(yīng)用程序的復(fù)雜程度不斷提高,C/S架構(gòu)存在部署成本高、客戶端應(yīng)用程序更新困難等不足。九十年代中期,互聯(lián)網(wǎng)飛速發(fā)展,出現(xiàn)了web1.0 B/S(Browse/Server,瀏覽器/服務(wù)器)應(yīng)用程序,Web的廣泛使用解決了C/S應(yīng)用程序部署、和更新的困難。但是Web1.0B/S應(yīng)用程序受制于DHTML的限制,無法像C/S那樣使用快速豐富的效果來展示數(shù)據(jù),用戶體驗(yàn)比較差。隨著Web應(yīng)用程序復(fù)雜性越來越高,傳統(tǒng)的Web應(yīng)用程序已經(jīng)漸漸不能滿足Web瀏覽者更高的、全方位的體驗(yàn)要求。 本文提出一種具有Web2.0風(fēng)格的流媒體平臺。這個平臺能提供豐富的交互性功能。本文通過引入RIA(Rich Internet Application)技術(shù)框架重點(diǎn)分析設(shè)計(jì)實(shí)現(xiàn)了功能豐富的表現(xiàn)層,在實(shí)現(xiàn)方法上主要采用了Adobe Flex技術(shù)來達(dá)到局部更新頁面、減少數(shù)據(jù)交互、減輕服務(wù)器負(fù)擔(dān)及提升用戶體驗(yàn)等效果。
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圖片說明：IR工A的應(yīng)用程序模型
[Abstract]:Web2.0 is a class of Internet application models that extend on the basis of Web 1.0. It is a transition to more interactive network applications. Web 2.0-style Web is a platform, or the Web is becoming configurable. Web 2.0-style Web becomes a place where people interact, and provides more interactive features to users. in recent year, that application of video streaming media technology in the Internet has been increase in recent years The video streaming media technology can be widely used in the on-line news release, on-line live broadcast, network advertisement, distance education, real-time video, conferences, etc. Many sites use video streaming media to play news, carry out live and on-demand services, and businesses and institutions use video streaming media to increase efficiency, pitch, About spending. The development of broadband networks further broadens the flow of media The present traditional video media market is integrated with the application service of the broadband network, resulting in new broadband VOD, online music, distance education, broadband charging TV, etc. At present, over 1,700 radio stations and TV stations have been on-demand on-demand in the Internet, and some of the world's influential media, such as the BBC, CNN, ABC, NBC, etc., have opened their own network on the Internet Radio and television stations in the country, such as cctv.com, btv.com, and the like, have also started a pilot tone on their own website The above-mentioned Web 2.0 style network application development and the current video streaming media technology are widely used to provide a good on-line streaming media distribution platform The environment in which the traditional C/ S (Client/ Server, client/ server) structure is one in the application architecture. The software running speed of C/ S structure is fast, the reliability is high, the data processing capability of the client is strong, and it has strong data operation. But with the increasing complexity of distributed applications, the C/ S architecture has a high deployment cost, a client application In the mid-1990s, with the rapid development of the Internet, the web 1.0 B/ S (Browse/ Server, Browser/ Server) application and the wide use of the Web have solved the deployment of C/ S applications. and the difficulty of updating, the Web1.0 B/ S application is subject to the limitation of DHTML and cannot display data using a fast rich effect like C/ S, The user experience is poor. As the complexity of the Web application is getting higher and higher, the traditional Web application has gradually been unable to meet the higher, full, The experience requirements of the orientation. This paper presents a kind of web with Web 2.0-style streaming platform. This platform A rich interactive function can be provided. In this paper, the function-rich performance layer is realized by introducing the key analysis and design of the Rich Internet Application (RIA) technology framework. In the implementation method, the Adobe Flex technology is used to reach the local update page, reduce the data interaction, and reduce the negative of the server.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2009
【分類號】：TP311.52

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 楊健;基于FLEX的義工聯(lián)管理系統(tǒng)在RIA網(wǎng)絡(luò)的研究與實(shí)現(xiàn)[D];河北工程大學(xué);2011年

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本文編號：2511486