A JSP page, current.jsp, is created to display the current weather report. The weather report is contained in a weather.html page that is rewritten every five minutes.
Which line, appearing in current.jsp, ensures that the most recent version of weather.html is included whenever current.jsp is referenced?()
A.
B.
C.
D.
E.
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What code, inserted at line 21, is called prior to a session being migrated to a different JVM assuming the web application containing MyExample is deployed in a container which supports distributed applications?()
A. public void valueUnbound(HttpSessionEvent ev){...}
B. public void sessionPassivated(HttpSessionEvent ev){...}
C. public void sessionDidActivate(HttpSessionEvent ev){...}
D. public void sessionWillPassivate(HttpSessionEvent ev){...}
A. A filter must implement the destroy method
B. A filter must implement the doFilter method
C. A servlet may have multiple filters associated with it
D. A servlet that is to have a filter applied to it must implement the javax.servlet.FilterChain interface
E. A filter that is part of a filter chain passes control to the next filter in the chain by invoking the filterChain forward method
F. For each
Assume session is an HttpSession, and is not referenced anywhere else in ServletA. Which two changes, taken together, ensure that value is equal to “Hello” on line 23? ()
A.A
B.B
C.C
D.D
E.E
Given the HttpServlet code:
getServletContext().setAttribute(“foo”, “value”);
What is the result?()
A. The attribute foo is placed in the application
B. A ServletContextListener registered for that servlet is notified
C. A ServletAttributeListener registered for that servlet is notified
D. An HttpSessionAttributeListener registered for that servlet is notified
A. The init method on a filter is called the first time a servlet mapped to that filter is invoked
B. A filter defined for a servlet must always forward control to the next resource in the filter chain.
C. Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file
D. If the init method on a filter throws an UnavailableException, then the container will make no further attempt to execute it
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.* namespace
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
E. Resources in the WAR class directory or in any of the JAR files within the library directory cannot be accessed using the J2SE semantics of getResource
Within the web application deployment descriptor, which defines a valid JNDI environment entry()
A.A
B.B
C.C
D.D
A. /conf/web.xml
B. /WEB-INF/web.xml
C. /conf/server.xml
D. /META-INF/web.xml
E. /WEB-INF/rules.xml
F. /META-INF/server. Xml
Which two are true()
A. Line 13 is not valid for a servlet declaration
B. Line 14 is not valid for a servlet declaration
C. One instance of the servlet will be loaded at startup
D. Ten instance of the servlet will be loaded at start up
E. the servlet will be referenced by the name catalog in mappings
A. j_user and j_id
B. j_id and j_password
C. j_users and j_password
D. j_user and j_password
E. j_login and j_password
F. j_username and j_password
最新试题
A session-scoped attribute, product, is stored by a servlet. That servlet then forwards to a JSP page. This attribute holds an instance of the com.Company. Product class with a name property of “The Matrix” and price property of 39.95. Given the JSP page code snippet:What is the response output of this JSP page code snippet? ()
Which three are guaranteed to be valid for the element of a web application deployment descriptor?()
What code, inserted at line 21, is called prior to a session being migrated to a different JVM assuming the web application containing MyExample is deployed in a container which supports distributed applications?()
Given that session is a valid HttpSession object: Int max = session.getAttribute(“MyReallyLongName”); Which is true?()
Which statement, at line 16, retrieves an InputStream for the file /WEBINF/ nyresrc.bin()?
Which three can be placed at line 23 to retrieve an existing HttpSession object?()
The tag handler for n:recurse extends SimpleTagSupport.Assuming an n:recurse tag can either contain an empty body or another n:recurse tag, which strategy allows the tag handler for n:recurse to output the nesting depth of the deepest n:recurse tag?()
Which the three EL expressions, inserted at line 15, are valid and evaluate to "3"? ()
Assume the tag handler for a st:simpletag extends SimpleTagSupport. In what way can scriptlet code be used in the body of st:simple?()
Which two classes or interfaces provide a getSession method?()