計算機(jī)專業(yè)畢設(shè)外文翻譯springboot-畢業(yè)設(shè)計外文翻譯(計算機(jī)專業(yè))-Spring框架_第1頁
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計算機(jī)專業(yè)畢設(shè)外?翻譯springboot_畢業(yè)設(shè)計外?翻譯(計算機(jī)專業(yè))_Spring框架英?原?Springcontainsalotoffunctionalityandfeatures,whicharewell-organizedinsevenmodulesshowninthediagrambelow.Thissectiondiscusseseachtheofmodulesinturn.TheCorepackageisthemostfundamentalpartoftheframeworkandprovidestheDependencyInjectionfeaturesallowingyoutomanagebeancontainerfunctionality.ThebasicconcepthereistheBeanFactory,whichprovidesafactorypatternremovingtheneedforprogrammaticsingletonsandallowingyoutodecoupletheconfigurationandspecificationofdependenciesfromyouractualprogramlogic.OntopoftheCorepackagesitstheContextpackage,providingawaytoaccessbeansinaframework-stylemanner,somewhatresemblingaJNDI-registry.Thecontextpackageinheritsitsfeaturesfromthebeanspackageandaddssupportfortextmessagingusinge.g.resourcebundles,event-propagation,resource-loadingandtransparentcreationofcontextsby,forexample,aservletcontainer.TheDAOpackageprovidesaJDBC-abstractionlayerthatremovestheneedtodotediousJDBCcodingandparsingofdatabase-vendorspecificerrorcodes.Also,theJDBCpackageprovidesawaytodoprogrammaticaswellasdeclarativetransactionmanagement,notonlyforclassesimplementingspecialinterfaces,butforallyourPOJOs(plainoldjavaobjects).TheORMpackageprovidesintegrationlayersforpopularobject-relationalmappingAPIs,includingJDO,HibernateandiBatis.UsingtheORMpackageyoucanuseallthoseO/R-mappersincombinationwithalltheotherfeaturesSpringoffers,likesimpledeclarativetransactionmanagementmentionedbefore.Spring'sAOPpackageprovidesanAOPAlliancecompliantaspect-orientedprogrammingimplementationallowingyoutodefine,forexample,method-interceptorsandpointcutstocleanlydecouplecodeimplementingfunctionalitythatshouldlogicallyspeakingbeseparated.Usingsource-levelmetadatafunctionalityyoucanincorporateallkindsofbehavioralinformationintoyourcode,alittlelike.NETattributes.Spring'sWebpackageprovidesbasicweb-orientedintegrationfeatures,suchasmultipartfunctionality,initializationofcontextsusingservletweb-orientedapplicationcontext.WhenusingSpringtogetherwithWebWorkorStruts,thisisthepackagetointegratewith.Spring'sWebMVCpackageprovidesaModel-View-Controllerimplementationforweb-applications.Spring'sMVCimplementationisnotjustanyimplementation,itprovidesacleanseparationbetweendomainmodelcodeandwebformsandallowsyoutousealltheotherfeaturesoftheSpringFrameworklikevalidation.Spring'swebMVCframeworkisDispatcherServletthatdispatchesrequeststohandlers,withconfigurablehandlermappings,viewresolution,localeandthemeresolutionaswellassupportforuploadfiles.ThedefaulthandlerisaverysimpleControllerofferingaModelAndViewhandleRequest(request,response)method.Thiscanalreadybeusedforapplicationcontrollers,butyouwillprefertheincludedimplementationhierarchy,consistingof,for

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