软件工程毕业设计参考文档

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1、附件：文献原文文献原文（1）：Struts：ApacheStrutsisanopen-sourcewebapplicationframeworkfordevelopingJavaEEwebapplications.ItusesandextendstheJavaServletAPItoencouragedeveloperstoadoptamodel-view-controller(MVC)architecture.ItwasoriginallycreatedbyCraigMcClanahananddonatedtotheApacheFoundationinMay,2000.Forme

2、rlylocatedundertheApacheJakartaProjectandknownasJakartaStruts,itbecameatoplevelApacheprojectin2005.DesigngoalsandoverviewInastandardJavaEEwebapplication,theclientwilltypicallysubmitinformationtotheserverviaawebform.TheinformationistheneitherhandedovertoaJavaServletwhichprocessesit,interactswit

3、hadatabaseandproducesanHTML-formattedresponse,oritisgiventoaJavaServerPages(JSP)documentwhichinterminglesHTMLandJavacodetoachievethesameresult.Bothapproachesareoftenconsideredinadequateforlargeprojectsbecausetheymixapplicationlogicwithpresentationandmakemaintenancedifficult.ThegoalofStrutsisto

4、cleanlyseparatethemodel(applicationlogicthatinteractswithadatabase)fromtheview(HTMLpagespresentedtotheclient)andthecontroller(instancethatpassesinformationbetweenviewandmodel).Strutsprovidesthecontroller(aservletknownasActionServlet)andfacilitatesthewritingoftemplatesforthevieworpresentationla

5、yer(typicallyinJSP,butXML/XSLTandVelocityarealsosupported).Thewebapplicationprogrammerisresponsibleforwritingthemodelcode,andforcreatingacentralconfigurationfilestruts-config.xmlwhichbindstogethermodel,viewandcontroller.Requestsfromtheclientaresenttothecontrollerintheformof"Actions"definedinth

6、econfigurationfile;ifthecontrollerreceivessucharequestitcallsthecorrespondingActionclasswhichinteractswiththeapplicationspecificmodelcode.Themodelcodereturnsan"ActionForward",astringtellingthecontrollerwhichoutputpagetosendtotheclient.InformationispassedbetweenmodelandviewintheformofspecialJav

7、aBeans.ApowerfulcustomtaglibraryallowsittoreadandwritethecontentofthesebeansfromthepresentationlayerwithouttheneedforanyembeddedJavacode.Strutsalsosupportsi18n(internationalization),providesfacilitiesforthevalidationofdatasubmittedbyweb