2023年全國碩士研究生考試考研英語一試題真題（含答案詳解+作文范文）_第1頁
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1、0外文原文TheDesignRealizationofLibraryMISBasedonMVCKeywds:MVCmodelJSPServletsJavabeansAbstract.MVCisatypicalsoftwarearchitecturemodelThepaperstatesthedevelopmentprincipleadvantagesoftheMVCpatterndiscussesthesoftwaredevelopme

2、ntprocessbasedontheMVCpatterndesignsaWebapplication—librarymanagementsystem.OnthebasisofintroducingbooksmanagementsystemthispaperdescribesthesystemdesignimplementationmethodbasedonMVCpattern.TheuseofMVCmodelimprovesmaint

3、ainabilityreusabilityofthesystem.INTRODUCTIONWiththerapidincreaseofthewkapplicationsMVCparadigmisaveryadvanceddesignideafWebapplicationdevelopment.Nomatterwhichlanguageyouchoosenomatterhowcomplextheapplicationsareitcanpr

4、ovidethemostbasicanalysismethodftheapplicationmodelstructuralprovideacleardesigningfproductsprovidecanonicalreferencefsoftwareengineering.ThisarticleraisesmanagementsystembasedonMVCparadigmonthebasisofresearchonlibraryma

5、nagementsystem.MVCseparatestheinputprocessingoutputofanapplicationaccdingtotheModelViewControllerthatisthreetierdesignmode(namelymodellayerviewlayercontrollayer).Itisnowwidelyusedinsoftwarearchitecturemodel.Thepaperusest

6、heJSPJavaBeansServletJDBCtechnologiestorealizetheMVCarchitecture.DisplayingWebpagesisusingJSPrealizingbusinessmodelsisusingJavaBeansControllingthedatatransmissionfunctioncallbetweenfegroundbackgroundisusingServletAccessi

7、ngdatabaseisusingJDBCstingdataisusingthedatabase.MVCDESIGNMODELMVCwasfirstdescribedin1979byTrygveReenskaugthenwkingonSmalltalkatXeroxPARC.Model–View–Controller(MVC)isasoftwarearchitecturecurrentlyconsideredanarchitectura

8、lpatternusedinsoftwareengineering.Thepatternisolates“domainlogic“(theapplicationlogicftheuser)fromtheuserinterface(inputpresentation)2B.thecontrolflowofMVCThoughMVCcomesindifferentflavscontrolflowisgenerallyasfollows:(1)

9、Theuserinteractswiththeuserinterfaceinsomeway(usuallytheviewbutnotnecessarily)fexamplepressesamousebutton.(2)Thecontrollerhlestheinputeventfromtheuserinterfaceoftenviaaregisteredhlercallbackconvertstheeventintoappropriat

10、euseractionunderstablefthemodel.(3)Thecontrollernotifiesthemodeloftheuseractionpossiblyresultinginachangeinthemodelsstate.(Fexamplethecontrollerupdatestheusersshoppingcart.)(4)Aviewqueriesthemodelindertogenerateanappropr

11、iateuserinterface(fexampletheviewliststheshoppingcartscontents).(5)Theviewgetsitsowndatafromthemodel.Insomeimplementationsthecontrollermayissueageneralinstructiontotheviewtorenderitself.Inotherstheviewisautomaticallynoti

12、fiedbythemodelofchangesinstate(Observer)whichrequireascreenupdate.Theuserinterfacewaitsffurtheruserinteractionswhichrestartsthecycle.C.theadvantagesofMVC(1)Benefittodivisiondeployment.TodevelopapplicationusingMVCdesignpa

13、tternpersonneldivisionofthedifferentfunctionsisveryclear.TousetheexampleofthedevelopmentofWebapplicationinJAVAlanguageJavaprogrammersfocusonbusinesslogicinterfaceprogrammer(HTMLJSPdevelopers)willjustconcentrateonthepagep

14、erfmancefms.(2)Increasethereuseoftheapplication.FthesameWebapplicationtheclientsmayusemultiplewaystoaccess.TheycanaccessnotonlybyHTMLbrowserofthecomputerbutalsobyWAPbrowserofthemobiletelephone.Butnomatterbywhatkindofacce

15、ssmodethebusinesslogicbusinessprocessoftheapplicationisthesameyouneedtochangetheconcreteimplementationwayofthepresentationlayer.MVCcansolvethisproblemeasilybecauseitrealizedtheseparationofthebusinessview.(3)Reducecouplin

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