單項選擇題

Given the definition of MyServlet:
11.public class MyServlet extends HttpServlet {
12.public void service(HttpServletRequest request,
13.HttpServletResponse response)
14.throws ServletException, IOException {
15.HttpSession session = request.getSession();
16.session.setAttribute("myAttribute","myAttributeValue");
17.session.invalidate();
18.response.getWriter().println("value=" +
19.session.getAttribute("myAttribute"));
20.}
21.}
What is the result when a request is sent to MyServlet?()

A.An IllegalStateException is thrown at runtime.
B.An InvalidSessionException is thrown at runtime.
C.The string "value=null" appears in the response stream.
D.The string "value=myAttributeValue" appears in the response stream.


您可能感興趣的試卷

你可能感興趣的試題

1.多項選擇題

A developer wants to make a name attribute available to all servlets associated with a particular user,across multiple requests from that user, from the same browser instance.
Which two provide this capability from within a tag handler?()

A.pageContext.setAttribute("name", theValue)
B.pageContext.setAttribute("name", getSession())
C.pageContext.getRequest().setAttribute("name", theValue)
D.pageContext.getSession().setAttribute("name", theValue)
E.pageContext.setAttribute("name", theValue,PageContext.PAGE_SCOPE)
F.pageContext.setAttribute("name", theValue,PageContext.SESSION_SCOPE)

2.單項選擇題

Click the Exhibit button.

The resource requested by the RequestDispatcher is available and implemented by the Destination Servlet.
What is the result?()

A.An exception is thrown at runtime by SourceServlet.
B.An exception is thrown at runtime by DestinationServlet.
C.Only "hello from dest" appears in the response output stream.
D.Both "hello from source" and "hello from dest" appear in the response output stream.

3.多項選擇題

You want to create a filter for your web application and your filter will implement javax.servlet.Filter.
Which two statements are true?()

A.Your filter class must implement an init method and a destroy method.
B.Your filter class must also implement javax.servlet.FilterChain.
C.When your filter chains to the next filter, it should pass the same arguments it received in its doFiltermethod.
D.The method that your filter invokes on the object it received that implements javax.servlet.FilterChaincan invoke either another filter or a servlet.
E.Your filter class must implement a doFilter method that takes, among other things, anHTTPServletRequest object and an HTTPServletResponse object.

4.多項選擇題

A developer wants a web application to be notified when the application is about to be shut down.
Which two actions are necessary to accomplish this goal?()

A.Include a listener directive in a JSP page
B.configure a listener in the TLD file using the  element
C.Include a  element in the web application deployment descriptor
D.configure a listener in the application deployment descriptor, using the  element
E.Include a class implementing ServletContextListener as part of the web application deploymen

最新試題

Click the 'Select and Place' button.Place the events in the order they occur.

題型:問答題

You are building a web application with a scheduling component. On the JSP, you need to show the currentdate, the date of the previous week, and the date of the next week. To help you present this information,you have created the following EL functions in the ’d’ namespace: name: curDate; signature: java.util.DatecurrentDate() name: addWeek; signature: java.util.Date addWeek(java.util.Date, int) name: dateString;signature:java.util.String getDateString(java.util.Date)Which EL code snippet will generate the string for the previousweek?

題型:單項選擇題

Which element of a web application deployment descriptor  element is required?()

題型:單項選擇題

Click the Exhibit button.The attribute "name" has a value of "Foo,"What is the result if this tag handler’s tag is invoked?()

題型:單項選擇題

In which three directories, relative to a web application’s root, may a tag library descriptor file reside whendeployed directly into a web application?()

題型:多項選擇題

Click the ’Select and Place’ button.Place the events in the order they occur.

題型:問答題

Click the 'Select and Place' button.Place the events in the order they occur.

題型:問答題

Click the ’Select and Place’ button.Place the events in the order they occur.

題型:問答題

You are building a dating web site. The client’s date of birth is collected along with lots of other information.The Person class has a derived method, getAge():int, which returns the person’s age calculated from thedate of birth and today’s date. In one of your JSPs you need to print a special message to clients within theage group of 25 through 35.Which two EL code snippets will return true for this condition? ()

題型:多項選擇題

Click the ’Select and Place’ button.Place the events in the order they occur.

題型:問答題