JAVA 認證心得 -- SCWCD 1.4 (1)

• HttpServletResponse.encodeURL()

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• findAttribute method Searches for the named attribute in page, request, session and application scope(s)
• The Valid return types for doAfterBody are EVAL_BODY_AGAIN or SKIP_BODY
• Fa~de pattern provides a layer between clients and subsystems of a complex system; shields clients from subsystem components, making the subsystems easier to use
• The Default value for body-content element of tag library descriptor is JSP
• Write the tag library descriptor element name that specifies that the value of attribute may be dynamically calculated at request time rtexprvalue
• The two sub elements of taglib element are taglib-uri and taglib-location
• Application jsp implicit object provides access to resources of the servlet engine (resources, attributes, init context parms, request dispatcher, server info, URL & MIME resources)
• Instance variables are thread-safe if the servlet implements SingleThreadModel
• isRequestedSessionIdFromCookie method checks whether the requested session id came in as cookie
• The Valid values of transport-guarantee of user-data-constraint element of Deployment Descriptor are None, INTEGRAL or CONFIDENTIAL

• ＜transport-guarantee＞NONE or INTEGRAL or CONFIDENTIAL＜/transport-guarantee＞

  ＜/user-data-constraint＞