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Adeveloperwantsawebapplicationtobenotifiedwhentheapplicationisabouttobeshutdown.Which twoactionsarenecessarytoaccomplishthisgoal？（）

A.IncludealistenerdirectiveinaJSPpage
B.configurealistenerintheTLDfileusingtheelement
C.Includeaelementinthewebapplicationdeploymentdescriptor
D.configurealistenerintheapplicationdeploymentdescriptor，usingtheelement
E.IncludeaclassimplementingServletContextListeneraspartofthewebapplicationdeploymen

【参考答案】

D, E

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