汽车租赁管理系统的设计与实现-外文翻译Word格式文档下载.docx

汽车租赁管理系统的设计与实现-外文翻译Word格式文档下载.docx

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ThomasRRohlederTheJSP（JavaServermix）technologyisusedbytheSunmicrosystemissuedby

thecompanytodevelopdynamicWebapplicationtechnology.Withitseasy,cross-platform,inmanydynamicWebapplicationprogramminglanguages,inashortspanofafewyears,hasformedacompletesetofstandards,andwidelyusedinelectroniccommerce,etc.InChina,theJSPnowalsogotmoreextensiveattention,getagooddevelopment,moreandmoredynamicwebsitetoJSPtechnology.TherelatedtechnologiesofJSParebrieflyintroduced.

TheJSPasimpletechnologycanquicklyandwiththemethodofgeneratingWebpages.UsetheJSPtechnologyWebpagecanbeeasilydisplaydynamiccontent.TheJSPtechnologyaredesignedtomaketheconstructionbasedonWebapplicationseasierandefficient,andtheseapplicationsandvariousWebserver,applicationserver,thebrowseranddevelopmenttoolsworktogether.

TheJSPtechnologyisn'

ttheonlydynamicwebtechnology,alsonotthefirstone,intheJSPtechnologyexistedbeforetheemergenceofseveralexcellentdynamicwebtechnology,suchasCGI,ASP,etc.Withtheintroductionofthesetechnologiesunderdynamicwebtechnology,thedevelopmentandtheJSP.Technical

JSPthedevelopmentbackgroundanddevelopmenthistory

Inwebbriefhistory,fromaworldwidewebthatmostofthenetworkinformationstaticonstocktransactionsevolutiontoacquisitionofanoperationandinfrastructure.Inavarietyofapplications,maybeusedforbasedonWebclient,looknorestrictions.

Basedonthebrowserclientapplicationsthantraditionalbasedonclient/serverapplicationshasseveraladvantages.Thesebenefitsincludealmostnolimitclientaccessandextremelysimplifiedapplicationdeploymentandmanagement（toupdate

anapplication,managementpersonnelonlyneedtochangetheprogramonaserver,notthousandsofinstallationinclientapplications）.So,thesoftwareindustryisrapidlytobuildontheclientbrowsermulti-layerapplication.

TherapidgrowthofexquisitebasedWebapplicationrequirementsdevelopmentoftechnicalimprovements.StaticHTMLtoshowrelativelystaticcontentisrightchoice,ThenewchallengeistocreatetheinteractionbasedonWebapplications,intheseprocedures,thecontentofaWebpageisbasedontheuser'

srequestorthestateofthesystem,andarenotpredefinedcharacters.

FortheproblemofanearlysolutionistouseaCGI-BINinterface.DeveloperswritetointerfacewiththerelevantproceduresandseparatebasedonWebapplications,thelatterthroughtheWebservertoinvoketheformer.Thisplanhasseriousproblem--eachnewextensibleCGIrequirementsinanewprocessontheserver.Ifmultipleconcurrentusersaccesstothisprocedure,theseprocesseswillusetheWebserverofallavailableresources,andtheperformanceofthesystemwillbereducedtoextremelylow.

SomeWebserverprovidershavetoprovidefortheirserverbyplugins"

and"

theAPItosimplifytheWebapplicationdevelopment.ThesesolutionsareassociatedwithcertainWebserver,cannotsolvethespanmultiplesupplierssolutions.Forexample,Microsoft'

sActiveServermix（ASP）technologyintheWebpagetocreatedynamiccontentmoreeasily,butalsocanworkinMicrosoftonPersonalWebServerandIIS.

Thereareothersolutions,butcannotmakeanordinarypagedesignerscaneasilymaster.Forexample,suchastheServletJavatechnologiescanuseJavalanguageinteractionapplicationservercodeeasier.DeveloperstowritesuchServlettoreceivesignalsfromtheWebbrowsertogenerateanHTTPrequest,adynamicresponse（maybeinquiresthedatabasetofinishtherequest）,thensendcontainHTMLorXMLdocumentstotheresponseofthebrowser.

note:

oneisbasedonaJavaServletJavatechnicaloperationintheserver

7

program（withdifferent,thelatteroperatingintheAppletbrowserend）.InthisbooktheServletchapter4.

Usingthismethod,theentirepagemusthavemadeinJavaServlet.IfdevelopersorWebmanagerswanttoadjustpage,you'

llhavetoeditandrecompiletheServletJava,eveninlogichasbeenabletorun.Usingthismethod,thedynamiccontentwiththeapplicationofthepagestillneedtodevelopskills.

Obviously,whatisneededisaindustrytocreatedynamiccontentwithinthescopeofthepagesofthesolution.Thisprogramwillsolvethecurrentschemearelimited.Asfollows:

canonanyWebserverorapplications.

willapplicationpagedisplaysandseparation.canrapidlydevelopingandtesting.

simplifytheinteractivedevelopmentbasedonWebapplicationprocess.

TheJSPtechnologyisdesignedtomeetsuchrequirements.TheJSPspecificationisaWebserver,applicationserver,tradingsystemanddevelopextensivecooperationbetweenthetoolsuppliers.Fromthisstandardtodeveloptheexistingintegra