J2EE框架组件的研究与实现

《J2EE框架组件的研究与实现》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、电子科技大学硕士学位论文J2EE框架组件的研究与实现姓名：李平勇申请学位级别：硕士专业：计算机系统结构指导教师：刘玓20041130AbstractSinceJ2EEmultilayercameout，abigchangehashappelledinsoftwareworld．ButJ2EEonlyhasthegeneraldesignpattern，fordifferentspecificsituation，it’Snecessarytogeneratethesteady,robustapplicationframeworkbasedonJ2EEthatabstracted

2、fromalargenumberofexperiences．FrameworktechnologyanddesignpatternaretheveryimportantreusabletechnologiesinJ2EE．Efficiencyofsoftwaredevelopmentisincreasedbyreusabletechnology．J2EEcontrolthequalityofsoftwarethroughframeworkanddesignpattern．Thoughtheframeworkdecreasestheflexibilityofsoftwarede

3、velopment，itimprovesthequalityofsoftwaregroupwareandmakesthelargescaleproductionpossible．ThereareafewflawsincurrentJ2EEframework：suchasthedifficultyofquickdevelopmentofprototypesystem；tootightcouplingofweblayerandlogiclayer．Theperformanceofalargeofdataqueryneedstooptimizeandthemodificationo

4、fdatatableanddatamodelwillcallsetochangeinmanyaspectsandproducesqualityproblemandSOon．Frameworkandgroupwarctechnologyovercometheabovedefects．ProgrammingbasedOnFrameworkhashigherdevelopmentrate，lessopportunitiestobewrong，moreconveniencetomaintain．Ingeneral，therearetwopartsinasoftwaresystem：n

5、ewapplicationdesignandreusablegroupwareorFramework．Ifthelatteronehasthelargerproportion，theworkloadwouldbelighter,therateofproductionwouldincrease，thecostwoulddecrease．So．foranyspecificsituation,wecandesign0111"ownframeworksbasedonJ2EE，increasedevelopingrateanddecreasecost．Inthispaper,wefir

6、stintroduceJ2EEandthepattern，thencomparetheframeworkofcurrentwebapplicationandanalysisStrutsFrameworkindetail．Furthermore，wepresentanEJBframeworkwithbetterqualityinseparatingbetweenWEBlayerandEJBlayer,simplifythenormalEJBservice．BasedonEJBandStruts，wegenerateanormalstructurewhichCansimplify

7、thedevelopprocessfordatamanipulation．Finally,weproposeademosystemtodemonstrateOurconcepts，andtheworkstobecomplementedaregiven．Keywords：J2EE，Frameworktechnology,DesignPatternH独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作及取得的研究成果。据我所知，除了文中特别加以标注和致谢的地方外，论文中不包含其他人已经发表或撰