JSP与WEB技术文献翻译Word下载.doc
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JSP(JavaServerPages)isaJava-basedscriptingtechnology.IsadvocatedbySunMicrosystemsInc.,togetherwithanumberofcompaniesinvolvedintheestablishmentofadynamicwebpagetechnologystandards.JSPtechnologyissomewhatsimilartoASPtechnology,ItisatraditionalHTMLpagefile(*.htm,*.html)toinsertJavaprogramsegment(Scriptlet)andJSPtag(tag),ToformtheJSPfile(*jsp).WebdevelopmentwithJSPisacross-platformapplicationsthatcanrununderLinux,butalsoinotheroperatingsystems.IntheJSPofthemanyadvantages,oneofwhichisthatitwillbeHTMLencodedWebpagefromthebusinesslogicseparatedeffectively.JSPaccesswithreusablecomponents,suchasServlet,JavaBeanandJava-basedWebapplications.JSPalsosupportsdirectlyintheWebpageembeddedJavacode.JSPcanbeusedtwowaystoaccessdocuments:
JSPdocumentssentbythebrowserrequest,therequestsenttotheServlet.JSPtechnologyusesJavaprogramminglanguage,XML-typetagsandscriptlets,tohaveapackagedealwiththelogicofdynamicpages.Pagetagsandscriptletscanalsoexistintheserveraccesstotheresourcesoftheapplicationlogic.JSPlogicandWebpagedesignanddisplayisolatedandsupportreusablecomponent-baseddesign,Web-basedapplicationsmorequicklyandeasilydeveloped.
TheWebserverwhenmeetsvisitstheJSPhomepagetherequest,firstcarriesoutsegment,willthencarryouttheresultcodetoreturntogetherwithJSPinthedocumentHTMLforthecustomer.TheinsertionJavasegmentmayoperatethedatabase,againthedirectionalhomepageandsoon,realizesthefunctionwhichtheestablishmentdynamichomepageneeds.JSPandJavaServletarethesame,isintheserverendexecution,usuallyreturnstothisclientsideisaHTMLtext,thereforeclientside,solongashasthebrowsertobeabletoglanceover.
TheJSPpageiscomposedoftheHTMLcodeandtheinsertingJavacode.TheserverinthepagebytheclientsidewasrequestedthatlaterwillcarryonprocessingtotheseJavacode,willthenproducetheHTMLpagewillreturngivestheclientsidethebrowser.JavaServletistheJSPtechnologybase,moreoverthelarge-scaleWebapplicationprocedure'
sdevelopmentneedsJavaServletandtheJSPcoordinationcancomplete.JSPhadtheJavatechnologysimplyeasytouse,completeobject-oriented,hadtheplatformindependency,andsafereliable,mainlyfacedInternet'
sallcharacteristics.
2JSPcomputingtechnique
Tocarryonthedynamicwebsiteconvenientlyfastthedevelopment,JSPhasmadetheimprovementinthefollowingseveralaspects,causesittobecomebuildsthecrossplatformfastthedynamicwebsitefirstchoiceplan.
2.1carriesonthecontentproductionandthedemonstrationseparates
WiththeJSPtechnology,theWebpagedevelopmentpersonnelmayuseHTMLortheXMLmarkingdesignandtheformattedfinalpage,andusestheJSPmarkingorthetootsyproducesonpage'
sdynamiccontentoriginally.Productioncontent'
slogicissealedinmarksandintheJavaBeansmodule,andtiesupinthescript,allscriptsinserverendmovement.BecausecorelogicissealedinmarksandinJavaBeans,thereforetheWebadministrativepersonnelsandthepagedesigner,caneditandusetheJSPpage,butdoesnotaffectthecontenttheproduction.Intheserverend,theJSPengineexplainedthattheJSPmarkingandthescript,producethecontentwhichrequested,and(orXML)page'
sformtransmitstheresultbyHTMLthebrowser.Thisbotharehelpfulintheauthorprotectsowncode,andcanguaranteeanybasedontheHTMLWebbrowser'
scompleteusability.
2.2mayentrustwithheavyresponsibilitythemodule
TheoverwhelmingmajorityJSPpagereliesonmayentrustwithheavyresponsibility,thecrossplatformmodule(JavaBeansorEnterprisetheJavaBeansmodule)carriesoutcomplexprocessingwhichtheapplicationprocedurerequests.Thedevelopmentpersonnelcanshareandexchangetheexecutionordinaryoperationthemodule,orcausesthesemodulesusesformoreusersandthecustomerassociation.Hasacceleratedtheoveralldevelopmentprocessbasedonmodule'
smethod,andcauseseachkindoforganizationobtainsbalancedintheirexistingskillandintheoptimizedresultdevelopmentendeavor.
2.3usesmarking
TheWebpagedevelopmentpersonnelwillnotbethefamiliarscriptlanguageprogrammers.TheJSPtechnologyhassealedmanyfunctions,thesefunctionsareeasytouse,markingtocarryonthedynamiccontentproductionwithJSPintherelatedXMLtoneed.ThestandardJSPmarkingcanvisitandtheinstantiationJavaBeansmodule,theestablishmentortheretrievalmoduleattribute,downloadsApplet,aswellastheexecutiondifficultywithcodesandthetime-consumingfunctionwithothermethods.
2.4adaptstheplatform
NearlyallplatformssupportJava,JSP+JavaBeanstobepossibletopass