A.A web application may override the web container’s implementation classes.
B.A web application running in a J2EE product may override classes in the javax.* namespace.
C.A web application class loader may NOT override any classes in the java.* and javax.* namespaces.
D.Resources in the WAR class directory or in any of the JAR files within the library directory may be accessed using the J2SE semantics of getResource.
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A.session configuration
B.MIME type mappings
C.context root for the application
D.servlet instance pool configuration
E.web container default port bindings
F.Servlet Context initialization parameters
A.
B.
C.
D.
A.<class><br/>
B.<webapp><br/>
C.<servlet><br/>
D.<codebase><br/>
E.<servlet-class>
Given：
11.public class MyServlet extends HttpServlet {
12.public void service（HttpServletRequest request，
13.HttpServletResponse response）
14.throws ServletException， IOException {
15.// insert code here
16.}
17.}
and this element in the web application’s deployment descriptor：
<error-page>
<error-code>302</error-code>
<location>/html/error.html</location>
</error-page>
Which，inserted at line 15，causes the container to redirect control to the error.html resource？（）
A.response.setError（302）；
B.response.sendError（302）；
C.response.setStatus（302）；
D.response.sendRedirect（302）；
E.response.sendErrorRedirect（302）；
You want to create a valid directory structure for your Java EE web application， and your application usestag files and a JAR file.
Which three must be located directly in your WEB-INF directory（NOT in asubdirectory of WEB-INF）？（）
A.The JAR file
B.A directory called lib
C.A directory called tags
D.A directory called TLDs
E.A directory called classes
F.A directory called META-INF
最新試題
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？
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.
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 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？（）
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？（）
Given tutorial.jsp：2.EL Tutorial3.Example 14.5.Dear ${my：nickname（user）}6.Which， when added to the web application deployment descriptor，ensures that line 5 is included verbatimin the JSP output？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
Which is a benefit of precompiling a JSP page？（）