单项选择题
Which interface must a class implement so that instances of the class are notified after any object is addedto a session？（）
A.javax.servlet.http.HttpSessionListener
B.javax.servlet.http.HttpSessionValueListener
C.javax.servlet.http.HttpSessionBindingListener
D.javax.servlet.http.HttpSessionAttributeListener
相关考题
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单项选择题
In your web application，you need to execute a block of code whenever the session object is first created. Which design will accomplish this goal？（）
A.Create an HttpSessionListener class and implement the sessionInitialized method with that block ofcode.
B.Create an HttpSessionActivationListener class and implement the sessionCreated method with thatblock of code.
C.Create a Filter class， call the getSession（false） method， and if the result was null， then execute that block of code.
D.Create an HttpSessionListener class and implement the sessionCreated method with that block of code. -
单项选择题
Whatisthepurposeofsessionmanagement？（）
A.To manage the user’s login and logout activities.
B.To store information on the client-side between HTTP requests.
C.To store information on the server-side between HTTP requests.
D.To tell the web container to keep the HTTP connection alive so it can make subsequent requestswithout the delay of making the TCP connection. -
多项选择题
A web application contains a tag file called beta.tag in /WEB-INF/tags/alpha. A JSP page called sort.jspexists in the web application and contains only this JSP code： 1.<%@ taglib prefix="x" 2.tagdir="/WEB-INF/tags/alpha" %> 3.<x：beta /> The sort.jsp page is requested. Which two are true？（）
A.Tag files can only be accessed using a tagdir attribute.
B.The sort.jsp page translates successfully and invokes the tag defined by beta.tag.
C.The sort.jsp page produces a translation error because a taglib directive must always have a uriattribute.
D.Tag files can only be placed in /WEB-INF/tags， and NOT in any subdirectories of /WEB- INF/tags.
E.The tagdir attribute in line 2 can be replaced by a uri attribute if a TLD referring to beta.tag is createdand added to the web application.
