A JSP page contains a taglib directive whose uri attribute has the value dbtags.
Which XML element withinthe web application deployment descriptor defines the associated TLD？（）
A.<tld><uri>dbtags</uri><location>/WEB-INF/tlds/dbtags.tld</location></tld>
B.<taglib><uri>dbtags</uri><location>/WEB-INF/tlds/dbtags.tld</location>. </taglib>
C.<tld>. <tld-uri>dbtags</tld-uri>. <tld-location>/WEB-INF/tlds/dbtags.tld</tld-location> . </tld>
D.<taglib><taglib-uri>dbtags</taglib-uri><taglib-location>/WEB-INF/tlds/dbtags.tld. </taglib-location>. </taglib>
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Assume the custom tag my：errorProne always throws a java.lang.RuntimeException with the message "Filenot found." An error page has been configured for this JSP page.
Which option prevents the exceptionthrown by my：errorProne from invoking the error page mechanism， and outputs the message "File notfound" in the response？（）
A.<c：try catch="ex"><my：errorProne /></c：try>${ex.message}
B.<c：catch var="ex"><my：errorProne /></c：catch>${ex.message}
C.<c：try>. <my：errorProne />. </c：try>. <c：catch var="ex" />. ${ex.message}
D.<c：try>. <my：errorProne />. <c：catch var="ex" />. ${ex.message}. </c：try>
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’ %>
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"）； %>
最新試題
Which two are valid and equivalent？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
Which ensures that a JSP response is of type "text/plain"？（）
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？（）
Which three are true about servlet filters？（）
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.
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？
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？（）
In which three directories， relative to a web application’s root， may a tag library descriptor file reside whendeployed directly into a web application？（）