【正文】 編號(hào) 淮安信息職業(yè)技術(shù)學(xué)院畢 業(yè) 論 文題 目 基于 JSP 技術(shù)和 Ajax 技術(shù)實(shí)現(xiàn)的聊天室設(shè)計(jì)學(xué)生姓名 王萬(wàn)爽學(xué) 號(hào) 35011219院 系 計(jì)算機(jī)與通信工程學(xué)院專(zhuān) 業(yè) 計(jì)算機(jī)應(yīng)用技術(shù)班 級(jí) 350112指導(dǎo)教師 李剛顧問(wèn)教師二〇一三年十月摘 要摘 要隨著互聯(lián)網(wǎng)的飛速發(fā)展，聊天室這種比較古老的交流方式已經(jīng)被眾多人所認(rèn)可。通過(guò)聊天室在線聊天已成為網(wǎng)絡(luò)上人與人之間的溝通、交流和聯(lián)系的一種方式。為此，越來(lái)越多的網(wǎng)站開(kāi)始提供在線的聊天功能。與此同時(shí)，聊天室也以其方便、快捷、低成本等優(yōu)勢(shì)受到眾多企業(yè)的親睞，很多企業(yè)的網(wǎng)站中也加入了聊天室，以達(dá)到增進(jìn)企業(yè)與消費(fèi)者、消費(fèi)者與消費(fèi)者之間的相互交流和聯(lián)系的目的。傳統(tǒng)的互聯(lián)網(wǎng)絡(luò)聊天室，以顯示在線用戶(hù)和用戶(hù)信息的實(shí)時(shí)傳送，需要定期刷新頁(yè)面。刷新頁(yè)面，不僅要占用一定的系統(tǒng)資源和網(wǎng)絡(luò)帶寬，也會(huì)出現(xiàn)“白屏”現(xiàn)象，這對(duì)良好的用戶(hù)體驗(yàn)是非常不利的。 Ajax 是一個(gè)新的 web 應(yīng)用，使用 Ajax 技術(shù)的發(fā)展不僅解決了頁(yè)面刷新帶來(lái)的白屏問(wèn)題，也減少了對(duì)服務(wù)器和網(wǎng)絡(luò)傳輸?shù)呢?fù)載。我做的這個(gè)設(shè)計(jì)就是通過(guò) JSP 和 Ajax 實(shí)現(xiàn)的無(wú)刷新聊天室。關(guān)鍵詞：JSP；Ajax；網(wǎng)絡(luò)聊天室；無(wú)刷新AbstractIAbstractWith the rapid development of Inter, chat rooms that pare the old way of munication has been recognized by many people. By online chat chat room has bee the Inter interpersonal munication, a way of munication and contact. Therefore, more and more websites started offering online chat. Chat rooms, meanwhile, also with its convenient, fast, lowcost advantages such as affected by many enterprises, many enterprise site has joined the chat room, in order to achieve between the enterprises and consumers, customers and consumers to municate and contact purpose.Traditional Inter chat rooms in order to display online users and user messages sent in real time, the need to regularly refresh the page. Page refresh not only to take up some system resources and work bandwidth, but there is also a black and white phenomenon is very detrimental to a good user experience. Ajax is a new web application, the chat room system using Ajax technology development not only solved the page refreshes bring black and white issues, but also reduce the load on the server and work transmission.I do this is designed by the JSP and Ajax no refresh the chat roomKeywords: Jsp。Ajax；Inter chat rooms；Nofresh。目 錄II目 錄摘 要 ..............................................................................................................................IAbstract .........................................................................................................................II第一章 緒論 ...................................................................................................................1 系統(tǒng)現(xiàn)狀 ...............................................................................................................1 國(guó)內(nèi)外主要研究成果 ...........................................................................................1 課題的主要內(nèi)容及章節(jié)安 排 ...............................................................................3第二章 系統(tǒng)開(kāi)發(fā)環(huán)境和關(guān)鍵技術(shù) .............................................................................4 系統(tǒng)的開(kāi)發(fā)環(huán)境 ...................................................................................................4 APPLICATION 對(duì)象 ...............................................................................................4 AJAX 技術(shù) .............................................................................................................5 監(jiān)控用戶(hù)在線狀態(tài) ..............................................................................................6 JSP 技術(shù) ...............................................................................................................6第三章 系統(tǒng)分析與設(shè)計(jì) .............................................................................................9 系統(tǒng)分析 ...............................................................................................................9 聊天室功能需求分析 ...................................................................................9 聊天室功能性能分析 ...................................................................................9 系統(tǒng)運(yùn)行 環(huán)境 .......................................................................................................9 系統(tǒng)預(yù)覽和項(xiàng)目流程圖 .....................................................................................10第四章 系統(tǒng)的實(shí)現(xiàn) .....................................................................................................12 用戶(hù)登錄模塊 .....................................................................................................12 聊天室 主體功能模塊 .........................................................................................13 實(shí)時(shí)獲取并顯示在線人員列表 .........................................................................14 實(shí)現(xiàn)用戶(hù)發(fā)言 .....................................................................................................15 實(shí)時(shí)顯示聊天內(nèi)容 .............................................................................................19 退出聊天室 .........................................................................................................20第五章 總結(jié)與 致謝 .....................................................................................................22參考文獻(xiàn) .......................................................................................................................24淮安信息職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計(jì)論文0第一章 緒論 系統(tǒng)現(xiàn)狀在人們的生活中，信息技術(shù)的飛速發(fā)展正在發(fā)生深刻變化。人與人之間的對(duì)話是不再局限于面對(duì)面，網(wǎng)上聊天室提供了信息交流的另一個(gè)地方。傳統(tǒng)的聊天室，以顯示在線用戶(hù)和用戶(hù)信息的實(shí)時(shí)傳送，需要定期刷新頁(yè)面。刷新頁(yè)面，不僅要占用一定的系統(tǒng)資源和網(wǎng)絡(luò)帶寬，也會(huì)出現(xiàn)“白屏”的現(xiàn)象，這對(duì)良好的用戶(hù)體驗(yàn)是非常不利的。而使用 Ajax 技術(shù)開(kāi)發(fā)的聊天室，不僅可以解決頁(yè)面刷新帶來(lái)白屏的問(wèn)題，也減少了對(duì)服務(wù)器和網(wǎng)絡(luò)傳輸?shù)呢?fù)載。隨著互聯(lián)網(wǎng)應(yīng)用的普及，web 應(yīng)用以