单项选择题
A developer is designing a multi-tier web application and discovers a need to log each incoming client request. Which two patterns， taken independently， provide a solution for this problem？ （）
A. Transfer Object
B. Service Locator
C. Front Controller
D. Intercepting Filter
E. Business Delegate
F. Model-View-Controller
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相关考题
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单项选择题
Which is the correct web application deployment descriptor element for defining a servlet initialization parameter？（）
A.A
B.B
C.C
D.D -
单项选择题
ServletAreceivesarequestthatitforwardstoservletBwithinanotherwebapplicationinthesamewebcontainer.ServletAneedstosharedatawithservletBandthatdatamustnotbevisibletootherservletsinA’swebapplication.InwhichobjectcanthedatathatAshareswithBbestored？（）
A. HttpSession
B. ServletConfig
C. ServletContext
D. HttpServletRequest
E. HttpServletResponse -
多项选择题
Forwhichthreeeventscanwebapplicationeventlistenersberegistered？（）
A. when a session is created
B. after a servlet is destroyed
C. when a session has timed out
D. when a cookie has been created
E. when a servlet has forwarded a request
F. when a session attribute value is changed
