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Your web application uses a simple architecture in which servlets handle requests and then forward to aJSP using a request dispatcher. You need to pass information calculated by the servlet to the JSP；furthermore， that JSP uses a custom tag and must also process this information. This information mustNOT be accessible to any other servlet， JSP or session in the webapp. How can you accomplish this goal？（）
- A、Store the data in a public instance variable in the servlet.
- B、Add an attribute to the request object before using the request dispatcher.
- C、Add an attribute to the context object before using the request dispatcher.
- D、This CANNOT be done as the tag handler has no means to extract this data.
参考答案
更多 “ Your web application uses a simple architecture in which servlets handle requests and then forward to aJSP using a request dispatcher. You need to pass information calculated by the servlet to the JSP；furthermore， that JSP uses a custom tag and must also process this information. This information mustNOT be accessible to any other servlet， JSP or session in the webapp. How can you accomplish this goal？（）A、Store the data in a public instance variable in the servlet.B、Add an attribute to the request object before using the request dispatcher.C、Add an attribute to the context object before using the request dispatcher.D、This CANNOT be done as the tag handler has no means to extract this data.” 相关考题
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tag.
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Your web application uses a simple architecture in which servlets handle requests and then forward to aJSP using a request dispatcher. You need to pass information calculated in the servlet to the JSP for view generation.This information must NOT be accessible to any other servlet，JSP or session in the webapp. Which two techniques can you use to accomplish this goal？（）A、Add attributes to the session object.B、Add attributes on the request object.C、Add parameters to the request object.D、Use the pageContext object to add request attributes.E、Add parameters to the JSP’s URL when generating the request dispatcher.
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Servlet A receives a request that it forwards to servlet B within another web application in the same web container. Servlet A needs to share data with servlet B and that data must not be visible to other servlets in A’s web application. In which object can the data that A shares with B be stored？（）A、 HttpSessionB、 ServletConfigC、 ServletContextD、 HttpServletRequestE、 HttpServletResponse
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You want to create a filter for your web application and your filter will implement javax.servlet.Filter. Which two statements are true？（）A、Your filter class must implement an init method and a destroy method.B、Your filter class must also implement javax.servlet.FilterChain.C、When your filter chains to the next filter， it should pass the same arguments it received in its doFiltermethod.D、The method that your filter invokes on the object it received that implements javax.servlet.FilterChaincan invoke either another filter or a servlet.E、Your filter class must implement a doFilter method that takes， among other things， anHTTPServletRequest object and an HTTPServletResponse object.
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单选题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 tag that requires the page name tobe specified dynamically when the header is imported. Which JSP code snippet performs the import of theheader content？（）A
jsp：include page=’/WEB-INF/jsp/header.jsp’jsp：param name=’pageName’ value=’Welcome Page’ / /jsp：includeB
jsp：import page=’/WEB-INF/jsp/header.jsp’jsp：param name=’pageName’ value=’Welcome Page’ / /jsp：importC
jsp：include page=’/WEB-INF/jsp/header.jsp’jsp：attribute name=’pageName’ value=’Welcome Page’ / . /jsp：includeD
jsp：import page=’/WEB-INF/jsp/header.jsp’. jsp：attribute name=’pageName’ value=’Welcome Page’ / . /jsp：import
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多选题A web application contains a tag file called beta.tag in /WEB-INF/tags/alpha. A JSP page called sort.jspexists in the web application and contains only this JSP code： 1. 3. The sort.jsp page is requested. Which two are true？（）ATag files can only be accessed using a tagdir attribute.BThe sort.jsp page translates successfully and invokes the tag defined by beta.tag.CThe sort.jsp page produces a translation error because a taglib directive must always have a uriattribute.DTag files can only be placed in /WEB-INF/tags， and NOT in any subdirectories of /WEB- INF/tags.EThe tagdir attribute in line 2 can be replaced by a uri attribute if a TLD referring to beta.tag is createdand added to the web application.
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多选题You want to create a filter for your web application and your filter will implement javax.servlet.Filter. Which two statements are true？（）AYour filter class must implement an init method and a destroy method.BYour filter class must also implement javax.servlet.FilterChain.CWhen your filter chains to the next filter， it should pass the same arguments it received in its doFiltermethod.DThe method that your filter invokes on the object it received that implements javax.servlet.FilterChaincan invoke either another filter or a servlet.EYour filter class must implement a doFilter method that takes， among other things， anHTTPServletRequest object and an HTTPServletResponse object.
考题
多选题A custom JSP tag must be able to support an arbitrary number of attributes whose names are unknown when the tag class is designed. Which two are true？ （）AA element in the echo tag LTD must have the value JSPBThe echo tag handler must define the setAttribute （String key， String value） methodCThe true element must appear in the echo tag TLDDThe class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.IterationTag interfaceEThe class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.DynamicAttributes interface
考题
单选题You have built your own light-weight templating mechanism. Your servlets， which handle each request，dispatch the request to one of a small set of template JSP pages. Each template JSP controls the layout ofthe view by inserting the header， body， and footer elements into specific locations within the template page.The URLs for these three elements are stored in request scoped variables called， headerURL， bodyURL，and footerURL， respectively. These attribute names are never used for other purposes. Which JSP codesnippet should be used in the template JSP to insert the JSP content for the body of the page？（）A
jsp：insert page=’${bodyURL}’ /B
jsp：insert file=’${bodyURL}’ /C
jsp：include page=’${bodyURL}’ /D
jsp：include file=’${bodyURL}’ /E
jsp：insert page=’%= bodyURL %’ /
考题
多选题Your web application uses a simple architecture in which servlets handle requests and then forward to aJSP using a request dispatcher. You need to pass information calculated in the servlet to the JSP for view generation.This information must NOT be accessible to any other servlet，JSP or session in the webapp. Which two techniques can you use to accomplish this goal？（）AAdd attributes to the session object.BAdd attributes on the request object.CAdd parameters to the request object.DUse the pageContext object to add request attributes.EAdd parameters to the JSP’s URL when generating the request dispatcher.
考题
单选题To take advantage of the capabilities of modern browsers that use web standards， such as XHTML andCSS， your web application is being converted from simple JSP pages to JSP Document format. However，one of your JSPs， /scripts/screenFunctions.jsp， generates a JavaScript file. This file is included in severalweb forms to create screen-specific validation functions and are included in these pages with the followingstatement： 10. 11. 14. 15. Which JSP code snippet declares that this JSP Document is a JavaScript file？（）A
%@ page contentType=’application/javascript’ %B
jsp:page contentType='application/javascript' /C
jsp:document contentType='application/javascript' /D
jsp:directive.page contentType='application/javascript' /E
No declaration is needed because the web form XHTML page already declares the MIME type of the /scripts/screenFunctions.jsp file in the script tag.
tag.
考题
单选题You are creating a content management system （CMS） with a web application front-end. The JSP thatdisplays a given document in the CMS has the following general structure： 1. 2. ... 11. ... ... ... 99. The citation tag must store information in the document tag for the document tag to generate a referencesection at the end of the generated web page. The document tag handler follows the Classic tag model andthe citation tag handler follows the Simple tag model. Furthermore， the citation tag could also be embeddedin other custom tags that could have either the Classic or Simple tag handler model. Which tag handlermethod allows the citation tag to access the document tag？（）A
public void doTag（） {JspTag docTag = findAncestorWithClass（this， DocumentTag.class）； （（DocumentTag）docTag）.addCitation（this.docID）；}B
public void doStartTag（） {JspTag docTag = findAncestorWithClass（this， DocumentTag.class）； （（DocumentTag）docTag）.addCitation（this.docID）；}C
public void doTag（） {. Tag docTag = findAncestor（this， DocumentTag.class）； . （（DocumentTag）docTag）.addCitation（this.docID）；. }D
public void doStartTag（） {. Tag docTag = findAncestor（this， DocumentTag.class）； . （（DocumentTag）docTag）.addCitation（this.docID）；. }
考题
单选题Servlet A receives a request that it forwards to servlet B within another web application in the same web container. Servlet A needs to share data with servlet B and that data must not be visible to other servlets in A’s web application. In which object can the data that A shares with B be stored？（）A
HttpSessionB
ServletConfigC
ServletContextD
HttpServletRequestE
HttpServletResponse
考题
单选题Your web application views all have the same header， which includes the tag in the elementof the rendered HTML. You have decided to remove this redundant HTML code from your JSPs and put itinto a single JSP called /WEB-INF/jsp/header.jsp. However， the title of each page is unique， so you havedecided to use a variable called pageTitle to parameterize this in the header JSP， like this： 10.${param.pageTitle} Which JSP code snippet should you use in your main view JSPs to insert the header and pass thepageTitle variable？（）A
jsp：insert page=’/WEB-INF/jsp/header.jsp’. ${pageTitle=’Welcome Page’}. /jsp：insertB
jsp：include page=’/WEB-INF/jsp/header.jsp’. ${pageTitle=’Welcome Page’}. /jsp：includeC
jsp：include file=’/WEB-INF/jsp/header.jsp’. ${pageTitle=’Welcome Page’}. /jsp：includeD
jsp：insert page=’/WEB-INF/jsp/header.jsp’. jsp：param name=’pageTitle’ value=’Welcome Page’ / . /jsp：insertE
jsp：include page=’/WEB-INF/jsp/header.jsp’. jsp：param name=’pageTitle’ value=’Welcome Page’ / . /jsp：include
考题
多选题If you want to use the Java EE platform’s built-in type of authentication that uses a custom HTML page for authentication. Which two statements are true？（）AYour deployment descriptor will need to contain this tag： CUSTOM.BThe related custom HTML login page must be named loginPage.html.CWhen you use this type of authentication， SSL is turned on automatically.DYou must have a tag in your deployment descriptor that allows you to point to both a login HTML pageand an HTML page for handling any login errors.EIn the HTML related to authentication for this application， you must use predefined variable names fort he variables that store the user and password values.
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