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1、大学毕业设计（论文）第-21-页附录A外文原文(出处：MalcolmDavis.Struts--anopen-sourceMVCimplementation[J].IBMSystemsJournal,2006,44(2):33-37.)Struts——anopen-sourceMVCimplementationMalcolmDavisThisarticleintroducesStruts,aModel-View-ControllerimplementationthatusesservletsandJavaServerPages(JSP)technology.
2、StrutscanhelpyoucontrolchangeinyourWebprojectandpromotespecialization.EvenifyouneverimplementasystemwithStruts,youmaygetsomeideasforyourfutureservletsandJSPpageimplementation.IntroductionKidsingradeschoolputHTMLpagesontheInternet.However,thereisamonumentaldifferencebetweenagradesch
3、oolpageandaprofessionallydevelopedWebsite.Thepagedesigner(orHTMLdeveloper)mustunderstandcolors,thecustomer,productflow,pagelayout,browsercompatibility,imagecreation,JavaScript,andmore.Puttingagreatlookingsitetogethertakesalotofwork,andmostJavadevelopersaremoreinterestedincreatingag
4、reatlookingobjectinterfacethanauserinterface.JavaServerPages(JSP)technologyprovidesthegluebetweenthepagedesignerandtheJavadeveloper.Ifyouhaveworkedonalarge-scaleWebapplication,youunderstandthetermchange.Model-View-Controller(MVC)isadesignpatternputtogethertohelpcontrolchange.MVCdec
5、ouplesinterfacefrombusinesslogicanddata.StrutsisanMVCimplementationthatusesServlets2.2andJSP1.1tags,fromtheJ2EEspecifications,aspartoftheimplementation.YoumayneverimplementasystemwithStruts,butlookingatStrutsmaygiveyousomeideasonyourfutureServletsandJSPimplementations.Model-View-Co
6、ntroller(MVC)JSPtagssolvedonlypartofourproblem.Westillhaveissueswithvalidation,flowcontrol,andupdatingthestateoftheapplication.ThisiswhereMVCcomestothe大学毕业设计（论文）第-21-页rescue.MVChelpsresolvesomeoftheissueswiththesinglemoduleapproachbydividingtheproblemintothreecategories:·ModelThemo
7、delcontainsthecoreoftheapplication'sfunctionality.Themodelencapsulatesthestateoftheapplication.Sometimestheonlyfunctionalityitcontainsisstate.Itknowsnothingaboutthevieworcontroller.·ViewTheviewprovidesthepresentationofthemodel.Itisthelookoftheapplication.Theviewcanaccessthemodelget
8、ters,butithasnoknowledgeof
