单项选择题

Adeveloperisdesigningawebapplicationthatmustsupportmultipleinterfaces，including：anXMLwebserviceforB2BHTMLforweb－basedclientsWMLforwirelesscustomers.Whichdesignpatternprovidesasolutionforthisproblem？（）

A.SessionFacade
B.BusinessDelegate
C.DataAccessObject
D.Model-View-Controller
E.ChainofResponsibility

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单项选择题

AdeveloperisdesigningawebapplicationwhichextensivelyusesEJBsandJMS.ThedeveloperfindsthatthereisalotofduplicatedcodetobuildtheJNDIcontextstoaccessthebeansandqueues.Further，becauseofthecomplexity，therearenumerouserrorsinthecode.WhichJ2EEdesignpatternprovidesasolutionforthisproblem？（）
A.Command
B.TransferObject
C.ServiceLocator
D.SessionFacade
E.BusinessDelegate

A.ThedeveloperfindsthatthereisalotofduplicatedcodetobuildtheJNDIcontextstoaccessthebeansandqueues.Further，becauseofthecomplexity，therearenumerouserrorsinthecode.WhichJ2EEdesignpatternprovidesasolutionforthisproblem？（）
A.Command
B.TransferObject
C.ServiceLocator
D.SessionFacade
E.BusinessDelegate

单项选择题

ServletAreceivesarequestthatitforwardstoservletBwithinanotherwebapplicationinthesamewebcontainer.ServletAneedstosharedatawithservletBandthatdatamustnotbevisibletootherservletsinA’swebapplication.InwhichobjectcanthedatathatAshareswithBbestored？（）
A.HttpSession
B.ServletConfig
C.ServletContext
D.HttpServletRequest
E.HttpServletResponse

A.ServletAneedstosharedatawithservletBandthatdatamustnotbevisibletootherservletsinA’swebapplication.InwhichobjectcanthedatathatAshareswithBbestored？（）
A.HttpSession
B.ServletConfig
C.ServletContext
D.HttpServletRequest
E.HttpServletResponse