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您可能感興趣的試卷
你可能感興趣的試題
A.The tag handler must implement BodyTag.
B.The doAfterBody method is NOT called.
C.The setBodyContent method is called once.
D.It is never legal to return EVAL_BODY_BUFFERED from doStartTag.
Assume the tag handler for a st：simple tag extends Simple Tag Support.
In what way can scriptlet code beused in the body of st：simple？（）
A.Set the body content type to JSP in the TLD
B.Scriptlet code is NOT legal in the body of st：simple.
C.Add scripting-enabled="true" to the start tag for the st：simple element
D.Add a pass-through Classic tag with a body content type of JSP to the body of st：simple， and place the scriptlet code in the body of that tag
Given：
11.<% java.util.Map map = new java.util.HashMap（）；
12.request.setAttribute（"map"， map）；
13.map.put（"a"， "b"）；
14.map.put（"b"， "c"）；
15.map.put（"c"， "d"）； %>
16.<%-- insert code here --%>
Which three EL expressions， inserted at line 16， are valid and evaluate to "d"？（）
A.${map.c}
B.${map[c]}
C.${map["c"]}
D.${map.map.b}
E.${map[map.b]}
You are building a dating web site. The client’s date of birth is collected along with lots of other information.You have created an EL function with the signature：
calcAge（java.util.Date）：int and it is assigned to the name， age， in the namespace， funct. In one of your JSPsyou need to print a special message to clients who are younger than 25.
Which EL code snippet will returntrue for this condition？（）
A.${calcAge（client.birthDate） < 25}
B.${calcAge[client.birthDate] < 25}
C.${funct：age（client.birthDate） < 25}
D.${funct：age[client.birthDate] < 25}
E.${funct：calcAge（client.birthDate） < 25}
You are creating an error page that provides a user-friendly screen whenever a server exception occurs.You want to hide the stack trace， but you do want to provide the exception’s error message to the user sothe user can provide it to the customer service agent at your company.
Which EL code snippet inserts thiserror message into the error page？（）
A.Message： <b>${exception.message}</b>
B.Message： <b>${exception.errorMessage}</b>
C.Message： <b>${request.exception.message}</b>
D.Message： <b>${pageContext.exception.message}</b>
E.Message： <b>${request.exception.errorMessage}</b>
最新試題
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？（）
Which two are valid and equivalent？（）
You are building your own layout mechanism by including dynamic content for the page’s header and footersections. The footer is always static， but the header generates the <title> tag that requires the page name tobe specified dynamically when the header is imported.Which JSP code snippet performs the import of theheader content？（）
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？（）
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？
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.