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Adeveloperisdesigningthepresentationtierforawebapplicationwhichrequiresacentralizedrequesthandlingtocompletecommonprocessingrequiredbyeachrequest.Whichdesignpatternprovidesasolutiontothisproblem？（）

A.RemoteProxy
B.FrontController
C.ServiceActivator
D.InterceptingFilter
E.BusinessDelegate
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单项选择题

YouhaveasimplewebapplicationthathasasingleFrontControllerservletthatdispatchestoJSPstogenerateavarietyofviews.Severaloftheseviewsrequirefurtherdatabaseprocessingtoretrievethe necessaryorderobjectusingtheorderIDrequestparameter.Todothisadditionalprocessing，youpasstherequestfirsttoaservletthatismappedtotheURLpattern/WEBINF/retreiveOrder.dointhedeploymentdescriptor.Thisservlettakestworequestparameters，theorderIDandthejspURL.IthandlesthedatabasecallstoretrieveandbuildthecomplexorderobjectsandthenitdispatchestothejspURL.
WhichcodesnippetintheFrontControllerservletdispatchestherequesttotheorderretrievalservlet？（）
单项选择题

Adeveloperisdesigningawebapplicationthatmakesmanyfine-grainedremotedatarequestsforeachclientrequest.Duringtesting，thedeveloperdiscoversthatthevolumeofremoterequestssignificantlydegradesperformanceoftheapplication.Whichdesignpatternprovidesasolutionforthisproblem？（）
A.Flyweight
B.TransferObject
C.ServiceLocator
D.DispatcherView
E.BusinessDelegate
F.Model-View-Controller

A.Duringtesting，thedeveloperdiscoversthatthevolumeofremoterequestssignificantlydegradesperformanceoftheapplication.Whichdesignpatternprovidesasolutionforthisproblem？（）
A.Flyweight
B.TransferObject
C.ServiceLocator
D.DispatcherView
E.BusinessDelegate
F.Model-View-Controller
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