基于Java ME的RSS閱讀系統(tǒng)的研究與實(shí)現(xiàn).pdf

1、華北電力大學(xué)碩士學(xué)位論文摘要隨著通信和計(jì)算機(jī)技術(shù)的迅速發(fā)展，以及個(gè)人移動(dòng)通信的普及，移動(dòng)開發(fā)越來越受到人們的關(guān)注。本文結(jié)合JavaME和RSS技術(shù)的優(yōu)勢(shì)研究并開發(fā)了基于JavaME的RSS閱讀系統(tǒng)。本文首先詳細(xì)討論并分析了JavaME平臺(tái)和JavaEE平臺(tái)的優(yōu)缺點(diǎn)，給出了系統(tǒng)的實(shí)現(xiàn)模型。其次，進(jìn)一步規(guī)定了通信雙方的指令集和基本參數(shù)，進(jìn)而雙方通過HTI，P協(xié)議可以進(jìn)行正確的通信。此外，還探討了移動(dòng)客戶端和服務(wù)器的設(shè)計(jì)與實(shí)現(xiàn)，對(duì)RSS概念及

2、其相關(guān)技術(shù)標(biāo)準(zhǔn)進(jìn)行了研究，并且設(shè)計(jì)出了合理的RSS內(nèi)容抓取模型。最后，對(duì)HTML頁(yè)面的內(nèi)容信息提取進(jìn)行了研究，提出了一種WEB頁(yè)面主題信息提取的新算法，能夠準(zhǔn)確的過濾并提取出與主題無(wú)關(guān)的廣告，鏈接等垃圾信息，從而獲得頁(yè)面主題內(nèi)容。關(guān)鍵詞:JavaME，MIDP，RSS，測(cè)試驅(qū)動(dòng)開發(fā)，單元測(cè)試ABSTRACTWiththeraPiddeveloPmentofeommunicationandeomPutertechnology，themob

3、ileaPPlicationbeeomesmorePoPular.InthisPaPer，JavaMEandRSSteehnologyareadoPtedintheresearehdeveloPment.Firstly，thisPageanalysesthemajfeatures，functionsofJavaMEandJavaEEtechnology.Seeondly，wegiveaarchitecturediagramofthese

4、rversanddeseribethedesignoftheclient.AecordingtothesPeeialagreement，elienteansendorreeeivetherightmessageftomtheserverbyHTTPProtoeol.Then，wedesearehontheRSSstandardsandanalyzetheaPPlicationoftheRSS，mostlyonRSSgeneration、

5、aggregationandPushserviee.Baseonthat，wedesignagoodmodeltograbtheinfmationofRSS.Finally，thisPaPerdoesmoreresearehonextraetinginformativeblocksftomwebsites.Basedonthereseareh，weProPoseanewalgorithmtoeliminatethenoiseofthew

6、ebsites.城叮YangJie(ComPuterSoftwareThey)DireetedbyassociateProf.LiYuanehengKEYWORDS:JavaME，MIDP，RSS，TestDrivenDeveloPment，UnitTest華北電力大學(xué)碩士學(xué)位論文第四章服務(wù)器端的設(shè)計(jì)與實(shí)現(xiàn)..................................................................

7、.................……264.1Rss技術(shù)標(biāo)準(zhǔn)分析...................................................................................……264.1.1RsS發(fā)展過程........................................................................................

8、.....……264.1.2Rss版本及其說明.............................................................……274.1.3Rss分析總結(jié)..............................................................................................……284.2服務(wù)器總體功能分析..........

9、.................................................……284.3服務(wù)器端系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)..................................................................................……294.3.1系統(tǒng)整體設(shè)計(jì)思路......................................................

10、...……294.3.2協(xié)議命令的包裝實(shí)現(xiàn).................................................……304.3.3頁(yè)面內(nèi)容主題信息提取的實(shí)現(xiàn)..................................................................……314.3.4緩存的具體實(shí)現(xiàn)..............................................

11、....................……344.3.5提取RSS協(xié)議內(nèi)容的實(shí)現(xiàn)...........................................................................……354.4系統(tǒng)開發(fā)工具和平臺(tái).................................................……364.5本章小結(jié).……，........................

12、...............................................................................……37第五章一種WEB頁(yè)面主題信息提取的新方法..........................................................……385.1DOM樹模型的定義...........................................

13、....................................……385.1.1DOM定義.........................................................................................................……385.1.2DOM樹結(jié)構(gòu)..................................................

14、.............................................……395.2頁(yè)面結(jié)構(gòu)分析.............................................................................................……395.2.1利用頁(yè)面視覺特征分析頁(yè)面布局..............................................

15、................……405.2.2利用DIV和Table分析頁(yè)面布局..............................................................……405.3頁(yè)面提取研究與實(shí)現(xiàn)...……................................................……415.3.1內(nèi)容結(jié)構(gòu)樹定義...............................

16、.....................................................……425.3.2內(nèi)容結(jié)構(gòu)樹生成過程..............................................................................……435.3.3內(nèi)容評(píng)估定義........................................................

17、...........……，....................……455.3.4算法實(shí)現(xiàn)........................................................................................................……465.4系統(tǒng)提取網(wǎng)頁(yè)的實(shí)例.....................................................

18、……475.5實(shí)驗(yàn)評(píng)估...............................................................................................................……495.5.1數(shù)據(jù)集和評(píng)估標(biāo)準(zhǔn).............................................................……495.5.2實(shí)驗(yàn)結(jié)果.......

19、.................................................................................................……505.6小結(jié)..................................................................................................................

20、......……50第六章總結(jié)與展望.............................................................................................……51參考文獻(xiàn).....................................................................................................