Which retrieves the value associated with “foo” from within an HttpServlet？（）
A. String value = getServletConfig（ ）.getParameter（“foo”）；
B. String value = getServletContext（ ）.getAttribute（“foo”）；
C. Object value = getServletContext（ ）.getInitParameter（“foo”）；
D. String value = getServletContext（ ）.getInitParameter（“foo”）
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What is the result of a client request of the Source servlet with no query string？（）
A. The output “filterAdded = null” is written to the response stream.
B. The output “filterAdded = addedByFilter” is written to the response stream.
C. An exception is thrown at runtime within the service method of the Source servlet.
D. An exeption is thrown at runtime within the service method of the Destination servlet.
A. response.getWriter（ ）
B. response.getOutputStream（ ）
C. response.getOutputWriter（ ）
D. response.getWriter（ ） .getOutputStream（ ）
E. response.getWriter（Writer.OUTPUT_TEXT（ ）
What is the result？（）
A. <b></b>
B. <b>50</b>
C. <b>${5*10}</b>
D. The JSP fails to execute
A. within a method called jspInit
B. within the page directive of the JSP page
C. within a scriptlet at the top of the JSP page
D. within the
Which two successfully translate and result in a value of true？（）
A. ${true or false}
B. ${requestScope[foo][0] > 500}
C. ${requestScope[“foo”][1] = 420}
D. ${（requestScope[“foo”][0] lt 50） && （3 gt 2）
Which EL expression， inserted at line 3 is valid and evaluated to “beanValue”？（）
A. ${bean}
B. ${value}
C. ${beanValue}
D. ${com.example.bean}
E. ${requestScope[“com.example.bean”]}
F. ${request.get（“com.example.bean”）.toString（）}
A. ServletResponse.encodeURL
B. HttpServletResponse.encodeURL
C. ServletResponse.encodeRedirectURL
D. HttpServletResponse.encodeRedirectURL
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.
Which statement， inserted at line 16， unbinds an attribute from a session？（）
A. session.unbind（“key”）；
B. session.remove（“key”）；
C. session.removeAttribute（“key”）；
D. session.unbindAttribute（“key”）；
E. session.deleteAttribute（“key”）；
A. Access to session-scoped attributes is guaranteed to be thread-safe by the web container.
B. To activate URL rewriting， the developer must use the HttpServletResponse.setURLRewriting method.
C. If the web application uses HTTPS， then the web container may use the data on the HTTPS request stream to identify the client.
D. The JSESSIONID cookie is stored permanently on the client so that a user may return to the web application and the web container will rejoin that session.
最新试题
Which the two are valid and equivalent？（）
A web application uses the HttpSession mechanism to determine if a user is “logged in”. When a user supplies a valid user name and password， an HttpSession is created for that user. The user has access to the application for only 15 minutes after logging in. The code must determine how long the user has been logged in， and if this time is greater than 15 minutes， must destroy the HttpSession. Which method in HttpSession is used to accomplish this？（）
A custom JSP tag must be able to support an arbitrary number of attributes whose names are unknown when the tag class is designed. Which two are true？ （）
What else must the developer do to ensure that the intended security goal is achieved（）？
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？ （）
A developer is designing a web application which extensively uses EJBs and JMS. The developer finds that there is a lot of duplicated code to build the JNDI contexts to access the beans and queues. Further， because of the complexity， there are numerous errors in the code. Which J2EE design pattern provides a solution for this problem？（）
Given a web application in which the request parameter product ID contains a product identifier.Which two EL expressions evaluate the value of the product ID？（）
Which statement， at line 16， retrieves an InputStream for the file /WEBINF/ nyresrc.bin（）？
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？（）
Which path， relative to a web application’s root， identifies the web application’s deployment descriptor？（）