JSP技术发展历史中英文对照外文翻译文献.docx
《JSP技术发展历史中英文对照外文翻译文献.docx》由会员分享,可在线阅读,更多相关《JSP技术发展历史中英文对照外文翻译文献.docx(13页珍藏版)》请在冰豆网上搜索。
![JSP技术发展历史中英文对照外文翻译文献.docx](https://file1.bdocx.com/fileroot1/2023-7/22/25e2df38-112e-488d-9156-1d12020ea2e4/25e2df38-112e-488d-9156-1d12020ea2e41.gif)
JSP技术发展历史中英文对照外文翻译文献
中英文对照外文翻译文献
(文档含英文原文和中文翻译)
THETECHNIQUEDEVELOPMENTHISTORYOFJSP
TheJavaServerPages(JSP)isakindofaccordingtowebofthescriptplaitdistancetechnique,similarcarriesthescriptlanguageofJavaintheserveroftheNetscapecompanyofserver-sideJavaScript(SSJS)andtheActiveServerPages(ASP)oftheMicrosoft.JSPcomparestheSSJSandASPtohavebettercanexpandsex,anditisnomoreexclusivethananyfactoryorsomeoneparticularserverofWeb.ThoughthenormofJSPistobedrawupbytheSuncompanyof,
anyfactorycancarryouttheJSPonownsystem.TheAfterSunreleasetheJSP(theJavaServerPages)formally,thethiskindofnewWebapplicationdevelopmenttechniqueveryquicklycausedthepeople'sconcern.JSPprovidedaspecialdevelopmentenvironmentfortheWebapplicationthatestablishesthehighdynamicstate.AccordingtotheSunparlance,theJSPcanadapttoincludetheApacheWebServer,IIS4.0onthemarketatinsideof85%serverproduct.ThischapterwillintroducetherelatedknowledgeofJSPandDatabases,andJavaBeanrelatedcontents,isallcertainlyrougherintroductionamongthembasiccontents,sayperhapstoisaGuideonly,ifthereaderneedsthemoredetailedinformation,pleasingthebookofconsultthehomologousJSP.
1.1GENERALIZE
TheJSP(JavaServerPages)isfromthecompanyofSunMicrosystemsinitiate,themanycompaniestheparticipatetothebuildupthetogetherofthea
kindtheofdynamicthestatewebthepagetechniquestandard,theithavetheitintheconstructiontheofthedynamicstatethewebpagethestrongbutthedonottheespeciallyofthefunction.JSPandthetechniqueofASPoftheMicrosoftisveryalike.BothallprovidetheabilitythatmixeswithacertainprocedurecodeandisexplainbythelanguageenginetocarryouttheprocedurecodeinthecodeofHTML.Underneathwearesimpleofcarryontheintroductiontoit.
JSPpagesaretranslatedintoservlets.So,fundamentally,anytaskJSPpages
canperformcouldalsobeaccomplishedbyservlets.However,thisunderlyingequivalencedoesnotmeanthatservletsandJSPpagesareequallyappropriateinallscenarios.Theissueisnotthepowerofthetechnology,itistheconvenience,productivity,andmaintainabilityofoneortheother.Afterall,anythingyoucandoonaparticularcomputerplatformintheJavaprogramminglanguageyoucouldalsodoinassemblylanguage.Butitstillmatterswhichyouchoose.
JSPprovidesthefollowingbenefitsoverservletsalone:
•ItiseasiertowriteandmaintaintheHTML.YourstaticcodeisordinaryHTML:
noextrabackslashes,nodoublequotes,andnolurkingJavasyntax.
•YoucanusestandardWeb-sitedevelopmenttools.EvenHTMLtoolsthatknownothingaboutJSPcanbeusedbecausetheysimplyignoretheJSPtags.
•Youcandivideupyourdevelopmentteam.TheJavaprogrammerscanworkonthedynamiccode.TheWebdeveloperscanconcentrateonthepresentationlayer.Onlargeprojects,thisdivisionisveryimportant.Dependingonthesizeofyourteamandthecomplexityofyourproject,youcanenforceaweakerorstrongerseparationbetweenthestaticHTMLandthedynamiccontent.
Now,thisdiscussionisnottosaythatyoushouldstopusingservletsanduseonlyJSPinstead.Bynomeans.Almostallprojectswilluseboth.Forsomerequestsinyourproject,youwilluseservlets.Forothers,youwilluseJSP.Forstillothers,youwillcombinethemwiththeMVCarchitecture.YouwanttheapGFDGpropriatetoolforthejob,andservlets,bythemselves,donotcomplete
yourtoolkit.
1.2SOURCEOFJSP
ThetechniqueofJSPofthecompanyofSun,makingthepageofWebdevelopthepersonnelcanusetheHTMLperhapsmarkingofXMLtodesigntoturntheendpagewithformat.UsetheperhapssmallscriptfuturelifeofmarkingofJSP
becomesthedynamicstateonthepagecontents.(thecontentschangesaccordingtotheclaimof)TheJavaServletisatechnicalfoundationofJSP,andthelargeWebappliesthedevelopmentoftheproceduretoneedtheJavaServlettomatchwithwiththeJSPandthencancomplete,thisnameofServletcomesfromtheApplet,thelocaltranslationmethodofnowisalotof,thisbookinordernottomisconstruction,decidethedirectadoptionServletbutdon'tdoanytranslation,ifreaderwouldliketo,cancallitas"smallserviceprocedure".TheServletissimilartotraditionalCGI,ISAPI,NSAPIetc.Webproceduredevelopmentthefunctionofthetoolinfact,atusetheJavaServlethereafter,thecustomerneednotuseagainthelowlymethodofCGIofefficiency,alsoneednotuseonlytheabilitycometobornpageofWebofdynamicstateinthemethodofAPIthatacertainfixedWebserverterracecirculate.ManyserversofWeballsupporttheServlet,evennotsupporttheServletserverofWebdirectlyandcanalsopasstheadditionalappliedserverandthemoldpiecestosupporttheServlet.ReceivebenefitinthecharacteristicoftheJavacross-platform,theServletisalsoaterraceirrelevant,actually,aslongasmatchthenormofJavaServlet,theServletiscompletetohavenothingtodowithterraceandistohavenothingtodowithserverofWeb.BecausetheJavaServletisinternaltoprovidetheservicebythelinedistance,neednotstartaprogresstotheeachclaimses,andmakeuseofthemulti-threadingmechanismcanatthesametimeforseveralclaimservice,thereforetheefficiencyofJavaServletisveryhigh.
ButtheJavaServletalsoisnottohasnoweakness,similartotraditionalCGI,ISAPI,theNSAPImethod,theJavaServletistomakeuseoftooutputtheHTMLlanguagesentencetocarryoutthedynamicstatewebpageof,ifdevelopthewholewebsitewiththeJavaServlet,theintegrationprocessofthedynamicstatepartandthestaticstatepageisanevil-forebodingdreamsimply.ForsolvingthiskindofweaknessoftheJavaServlet,theSUNreleasedtheJSP.
Anumberofyearsago,Martywasinvitedtoattendasmall20-personindustryroundtablediscussiononsoftwaretechnology.SittingintheseatnexttoMartywasJamesGosling,inventoroftheJavaprogramminglanguage.Sittingseveralseatsawaywasahigh-levelmanagerfromaverylargesoftwarecompanyinRedmond,Washington.Duringthediscussion,themoderatorbroughtupthesubjectofJini,whichatthattimewasanewJavatechnology.Themoderatoraskedthemanagerwhathethoughtofit,andthemanagerrespondedthatitwastooearlytotell,butthatitseemedtobeanexcellentidea.Hewentontosaythattheywouldkeepaneyeonit,andifitseemedtobecatchingon,theywouldfollowhiscompany'susual"embraceandextend"strategy.Atthispoint,Goslinglightheartedlyinterjected"Youmeandisgraceanddistend."
Now,thegrievancethatGoslingwasairingwasthathefeltthatthiscompanywouldtaketechnologyfromothercompaniesandsubornitfortheirownpurposes.Butguesswhat?
Theshoeisontheotherfoothere.TheJavacommunitydidnotinventtheideaofdesigningpagesasamixtureofstaticHTMLanddynamiccodemarkedwithspecialtags.Forexample,ColdFusiondidityearsearlier.EvenASP(aproductfromtheverysoftwarecompanyoftheaforementionedmanager)popularizedthisapproachbeforeJSPcamealonganddecidedtojumponthebandwagon.Infact,JSPnotonlyadoptedthegeneralidea,itevenusedmanyofthesamespecialtagsasASPdid.
TheJSPisanestablishmentatthemodelofJavaservletsonoftheexpressionlayertechnique,itmakestheplaitwritetheHTMLtobecomemoresimple.BeliketheSSJS,italsoallowsyoucarrythestaticstateHTMLcontentsandserversthescriptmixtoputtogethertheborndynamicstateexportation.JSPthescriptlanguagethattheJavaisthetacitapproval,however,beliketheASPandcanuseotherlanguages(suchasJavaScriptandVBScript),thenormofJSPalsoallowstouseotherlanguages.
1.3JSPCHARACTERISTICS
Isaserviceaccordingtothescriptlanguageinsomeonelanguageofthestaturessystemthiskindofdiscuss,theJSPshouldbeseemakeisakindofscriptlanguage.However,beakindofscriptlanguage,theJSPseemedtobetoostrongagain,almostcanuseallJavasintheJSP.Beakindofaccordingtotextoriginallyof,takemanifestationasthecentraldevelopmenttechnique,theJSPprovidedalladvantagesoftheJavaServlet,and,whencombinewithaJavaBeanstogether,providingakindofmakecontentsandmanifestationthatsimplewaythatlogicseparate.Separatethecontentsandadvantageoflogicalmanifestationsis,thepersonnelwhorenewsthepageexternalappearanceneednotknowthecodeofJava,andrenewtheJavaBeanspersonnelalsoneednotbedesignthewebpageofexpertinhand,canusetotakethepageofJavaBeansJSPtodefinethetemplateofWeb,tobuildupafromhavethealikeexternalappearanceofthewebsitethatpageconstitute.JavaBeanscompletesthedatatoprovide,havingnocodeofJavainthetemplatethus,thismeansthatthesetemplatescanbewrittenthepersonnelbyaHTMLplaittosupport.Certainly,canalsomakeuseoftheJavaServlettocontrolthelogicofthewebsite,adjustthroughtheJavaServlettousethewayofthedocumentofJSPtoseparatewebsiteoflogicandcontents.
Generallyspeaking,inactualengineofJSP,thepageofJSPistheeditandtranslatetypewhilecarryout,notexplainthetypeof.Explainthedynamicstatewebpagedevelopmenttoolofthetype,suchasASP,PHP3etc.,becausespeed
etc.reason,havealreadycan'tsatisfycurrentthelargeelectroniccommerceneedsappliedly,traditionaldevelopmenttechniquesareallattoeditandtranslatetheexecutivewaychange,suchastheASP→ASP+;PHP3→PHP4.IntheJSPnormbook,didnotrequesttheprocedureintheJSPcodepart(