A.
B.
C.
D.
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你可能感興趣的試題
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
Click the Exhibit button.
As a maintenance feature， you have created this servlet to allow you to upload and remove files on yourweb server. Unfortunately， while testing this servlet， you try to upload a file using an HTTP request and onthis servlet， the web container returns a 404 status.
What is wrong with this servlet？（）
A.HTTP does NOT support file upload operations.
B.The servlet constructor must NOT have any parameters.
C.The servlet needs a service method to dispatch the requests to the helper methods.
D.The doPut and doDelete methods do NOT map to the proper HTTP methods.
最新試題
Which element of a web application deployment descriptor element is required？（）
Given a web application in which the request parameter productID contains a product identifier.Which twoEL expressions evaluate the value of the productID？（）
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 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？（）
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？（）
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.
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.