单项选择题

A. View HelperB. Front ControllerC. Composite ViewD. In……

A Company.com developer is designing the presentation tier for a web application that relies on a complex session bean. The session bean is still being developed and the APIs for are NOT finalized. Any changes to the session bean API directly impacts the development of the presentation tier.
Which design pattern provides a means to manage the uncertainty in the API？（）

A. View Helper
B. Front Controller
C. Composite View
D. Intercepting Filter
E. Business Delegate
F. Chain of Responsibility

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热门试题

多项选择题A Company.com developer chooses to avoid using SingleThreadModel but wants to ensure that data is updated in a thread-safe manner. Which two can support this design goal？（）

A. Store the data in a local variable.
B. Store the data in an instance variable.
C. Store the data in the HttpSession object.
D. Store the data in the ServletContext object.
E. Store the data in the ServletRequest object.

单项选择题WhichHttpSessionmethodstoresanobjectinasession？（）

A. put（String name. Object value）
B. set（String name. Object value）
C. setAttribute（String name. Object value）
D. putAttribute（String name. Object value）
E. addAttribute（String name. Object value）

单项选择题Whichelementistheparentofthetaginthewebapplicationdeploymentdescriptor？（）

A. <web-app>
B. <filters>
C. <servlet>
D. <filter-list>

单项选择题Which retrieves the value associated with “foo” from within an HttpServlet？（）

A. String value = getServletConfig（）.getParameter（“foo”）；
B. String value = getServletContext（）.getAttribute（“foo”）；
C. Object value = getServletContext（）.getInitParameter（“foo”）；
D. String value = getServletContext（）.getInitParameter（“foo”）

单项选择题What is the result of a client request of the Source servlet with no query string？（）

A. The output “filterAdded = null” is written to the response stream.
B. The output “filterAdded = addedByFilter” is written to the response stream.
C. An exception is thrown at runtime within the service method of the Source servlet.
D. An exeption is thrown at runtime within the service method of the Destination servlet.