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.
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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）
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.
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.
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
C.Include a
D.configure a listener in the application deployment descriptor， using the
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.
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Click the Exhibit button.The attribute "name" has a value of "Foo，"What is the result if this tag handler’s tag is invoked？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
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？
A web browser need NOT always perform a complete request for a particular page that it suspects mightNOT have changed. The HTTP specification provides a mechanism for the browser to retrieve only a partialresponse from the web server； this response includes information， such as the Last-Modified date but NOTthe body of the page.Which HTTP method will the browser use to retrieve such a partial response？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
Given a Filter class definition with this method：21.public void doFilter（ServletRequest request，22.ServletResponse response，23.FilterChain chain）24.throws ServletException， IOException {25.// insert code here26.}Which should you insert at line 25 to properly invoke the next filter in the chain， or the target servlet if thereare no more filters？（）
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A web application allows the HTML title banner to be set using a servlet context initialization parametercalled titleStr.Which two properly set the title in this scenario？（）