题目内容（请给出正确答案）

[主观题]

SqueakyBeansInc.hiredanoutsideconsultanttodeveloptheirwebapplication.Tofinishthejobquickly

，theconsultantcreatedseveraldozenJSPpagesthatdirectlycommunicatewiththedatabase.TheSqueakybusinessteamhassincepurchasedasetofbusinessobjectstomodeltheirsystem，andtheSqueakydeveloperchargedwithmaintainingthewebapplicationmustnowrefactoralltheJSPstoworkwiththenewsystem.Whichpatterncanthedeveloperusetosolvethisproblem？（）

A.TransferObject

B.ServiceLocator

C.InterceptingFilter

D.BusinessDelegate

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第1题

Adeveloperisdesigningamulti-tierapplicationanddiscoversaneedtohidethedetailsofestablishing

andmaintainingremotecommunicationsfromtheclient.Inaddition，theapplicationneedstofind，inatransparentmanner，theheterogeneousbusinesscomponentsusedtoservicetheclient’srequests.Whichdesignpatterns，workingtogether，addresstheseissues？（）

A.BusinessDelegateandTransferObject

B.BusinessDelegateandServiceLocator

C.FrontControllerandBusinessDelegate

D.InterceptingFilterandTransferObject

E.Model-View-ControllerandInterceptingFilter

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第2题

Youhavecreatedaservletthatgeneratesweather

maps.Thedataforthesemapsiscalculatedbyaremotehost.TheIPaddressofthishostisusuallystable，butoccasionallydoeshavetochangeasthecorporatenetworkgrowsandchanges.ThisIPaddressusedtobehardcoded，butafterthefifthchangetotheIPaddressintwoyears，youhavedecidedthatthisvalueshouldbedeclaredinthedeploymentdescriptorsoyoudoNOThavetherecompilethewebapplicationeverytimetheIPaddresschanges.

Whichdeploymentdescriptorsnippetaccomplishesthisgoal？（）

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第3题

Adeveloperisdesigningawebapplicationthatmustsupportmultipleinterfaces，including：?anXMLwebs

erviceforB2B?HTMLforweb-basedclients?WMLforwirelesscustomersWhichdesignpatternprovidesasolutionforthisproblem？()

A.SessionFaçade

B.BusinessDelegate

C.DataAccessObject

D.Model-View-Controller

E.ChainofResponsibility

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第4题

GiventhisfragmentfromaJavaEEdeploymentdescriptor：341.<error-page>342.<exception-t

ype>java.lang.Throwable</exception-type>343.<location>/mainError.jsp</location>344.</error-page>345.<error-page>346.<exception-type>java.lang.ClassCastException</exception-type>347.<location>/castError.jsp</location>348.</error-page>IfthewebapplicationassociatedwiththefragmentabovethrowsaClassCastException.Whichstatementistrue？（）

A.Thedeploymentdescriptorisinvalid.

B.ThecontainerinvokesmainError.jsp.

C.ThecontainerinvokescastError.jsp.

D.NeithermainError.jspnorcastError.jspisinvoked.

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第5题

Whichthreearevalidvaluesforthebody-contentattributeofatagdirectiveinatagfile？（）

A.EL

B.JSP

C.empty

D.dynamic

E.scriptless

F.tagdependent

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第6题

Whichdefinesthewelcomefilesinawebapplicationdeploymentdescriptor？（）

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第7题

ClicktheExhibitbutton.AssumetheproductattributedoesNOTyetexistinanyscope.Whichtwocreateaninstanceofcom.example.Productandinitializethenameandpricepropertiestothenameandpricerequestparameters？（）

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第8题

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A.A

B.B

C.C

D.D

E.E

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第9题

Whichinterfacemustaclassimplementsothatinstancesoftheclassarenotifiedafteranyobjectisaddedtoasession？（）

A.javax.servlet.http.HttpSessionListener

B.javax.servlet.http.HttpSessionValueListener

C.javax.servlet.http.HttpSessionBindingListener

D.javax.servlet.http.HttpSessionAttributeListener

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第10题

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