You are writing a JSP that includes scriptlet code to declare a List variable and initializes that variable to anArrayList object.
Which two JSP code snippets can you use to import these list types？（）
A.<%! import java.util.*； %>
B.<%! import java.util.List；import java.util.ArrayList； %>
C.<%@ page import=’java.util.List’import=’java.util.ArrayList’ %>
D.<%@ import types=’java.util.List’types=’java.util.ArrayList’ %>
E.<%@ page import=’java.util.List，java.util.ArrayList’ %>
F.<%@ import types=’java.util.List，java.util.ArrayList’ %>
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You are creating a new JSP page and you need to execute some code that acts when the page is firstexecuted， but only once.
Which three are possible mechanisms for performing this initialization code？（）
A.In the init method.
B.In the jspInit method.
C.In the constructor of the JSP’s Java code.
D.In a JSP declaration， which includes an initializer block.
E.In a JSP declaration， which includes a static initializer block.
Given the element from the web application deployment descriptor：
<jsp-property-group>
<url-pattern>/main/page1.jsp</url-pattern>
<scripting-invalid>true</scripting-invalid>
</jsp-property-group>
and given that /main/page1.jsp contains：
<% int i = 12； %>
<b><%= i %></b>
What is the result？（）
A.<b></b>
B.<b>12</b>
C.The JSP fails to execute.
D.<% int i = 12 %><b><%= i %></b>
In a JSP-centric web application， you need to create a catalog browsing JSP page. The catalog is stored asa List object in the catalog attribute of the webapp’s ServletContext object.
Which scriptlet code snippetgives you access to the catalog object？（）
A.<% List catalog = config.getAttribute（"catalog"）； %>
B.<% List catalog = context.getAttribute（"catalog"）； %>
C.<% List catalog = application.getAttribute（"catalog"）； %>
D.<% List catalog = servletContext.getAttribute（"catalog"）； %>
For manageability purposes， you have been told to add a "count" instance variable to a critical JSP Document so that a JMX MBean can track how frequent this JSP is being invoked.
Which JSP code snippetmust you use to declare this instance variable in the JSP Document？（）
A.<jsp：declaration>int count = 0；<jsp：declaration>
B.<%! int count = 0； %>
C.<jsp：declaration.instance>int count = 0；. <jsp：declaration.instance>
D.<jsp：scriptlet.declaration>int count = 0；. <jsp：scriptlet.declaration>
For debugging purposes， you need to record how many times a given JSP is invoked before the user’ssession has been created. The JSP’s destroy method stores this information to a database.
Which JSPcode snippet keeps track of this count for the lifetime of the JSP page？（）
A.<%! int count = 0； %><% if （ request.getSession（false） == null ） count++； %>
B.<%@ int count = 0； %>. <% if （ request.getSession（false） == null ） count++； %>
C.<% int count = 0；. if （ request.getSession（false） == null ） count++； %>
D.<%@ int count = 0；. if （ request.getSession（false） == null ） count++； %>
E.<%! int count = 0；. if （ request.getSession（false） == null ） count++； %>
最新試題
Which is true about the web container request processing model？（）
All of your JSPs need to have a link that permits users to email the web master. This web application islicensed to many small businesses， each of which have a different email address for the web master. Youhave decided to use a context parameter that you specify in the deployment descriptor， like this：42.<context-param>43.<param-name>webmasterEmail</param-name>44.<param-value>master@example.com</param-value>45.</context-param>Which JSP code snippet creates this email link？（）
Click the 'Select and Place' button.Place the events in the order they occur.
Click the ’Select and Place’ button.Place the events in the order they occur.
Your IT department is building a lightweight Front Controller servlet that invokes an application logic objectwith the interface：public interface ApplicationController {public String invoke（HttpServletRequest request）}The return value of this method indicates a symbolic name of the next view. From this name， the FrontController servlet looks up the JSP URL in a configuration table. This URL might be an absolute path or apath relative to the current request. Next， the Front Controller servlet must send the request to this JSP togenerate the view. Assume that the servlet variable request is assigned the current HttpServletRequestobject and the variable context is assigned the webapp’s ServletContext. Which code snippet of the FrontController servlet accomplishes this goal？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
Which three are true about servlet filters？（）
In which three directories， relative to a web application’s root， may a tag library descriptor file reside whendeployed directly into a web application？（）
Click the 'Select and Place' button.Place the events in the order they occur.
Your company has a corporate policy that prohibits storing a customer’s credit card number in anycorporate database. However， users have complained that they do NOT want to re- enter their credit cardnumber for each transaction. Your management has decided to use client-side cookies to record the user’scredit card number for 120 days. Furthermore， they also want to protect this information during transit fromthe web browser to the web container； so the cookie must only be transmitted over HTTPS.Which codesnippet creates the "creditCard" cookie and adds it to the out going response to be stored on the user’s webbrowser？（）