单项选择题
For debugging purposes， you need to record how many times a given JSP is invoked before the user’ssession has been created. The JSP’s destroy method stores this information to a database.
Which JSPcode snippet keeps track of this count for the lifetime of the JSP page？（）
A.<%! int count = 0； %><% if （ request.getSession（false） == null ） count++； %>
B.<%@ int count = 0； %>. <% if （ request.getSession（false） == null ） count++； %>
C.<% int count = 0；. if （ request.getSession（false） == null ） count++； %>
D.<%@ int count = 0；. if （ request.getSession（false） == null ） count++； %>
E.<%! int count = 0；. if （ request.getSession（false） == null ） count++； %>
相关考题
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单项选择题
You are building JSP pages that have a set of menus that are visible based on a user’s security role. Thesemenus are hand-crafted by your web design team； for example， the SalesManager role has a menu in thefile /WEB-INF/html/sales-mgr-menu.html. Which JSP code snippet should be used to make this menuvisible to the user？（）
A.<% if （ request.isUserInRole（"SalesManager"） ） { %> <%@ include file=’/WEB-INF/html/sales-mgr-menu.html’ %> <% } %>
B.<jsp：if test=’request.isUserInRole（"SalesManager"）’> <%@ include file=’/WEB-INF/html/sales-mgr-menu.html’ %> </jsp：if>
C.<% if （ request.isUserInRole（"SalesManager"） ） { %> . <jsp：include file=’/WEB-INF/html/sales-mgr-menu.html’ /> . <% } %>
D.<jsp：if test=’request.isUserInRole（"SalesManager"）’> <jsp：include file=’/WEB-INF/html/sales-mgr-menu.html’ /> </jsp：if> -
多项选择题
Whichtwoaretrueregardingawebapplicationclassloader？（）
A.A web application may override the web container’s implementation classes.
B.A web application running in a J2EE product may override classes in the javax.* namespace.
C.A web application class loader may NOT override any classes in the java.* and javax.* namespaces.
D.Resources in the WAR class directory or in any of the JAR files within the library directory may be accessed using the J2SE semantics of getResource. -
多项选择题
Whichthreearedescribedinthestandardwebapplicationdeploymentdescriptor？（）
A.session configuration
B.MIME type mappings
C.context root for the application
D.servlet instance pool configuration
E.web container default port bindings
F.Servlet Context initialization parameters
