单选题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 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？（）AStore the data in a public instance variable in the servlet.BAdd an attribute to the request object before using the request dispatcher.CAdd an attribute to the context object before using the request dispatcher.DThis CANNOT be done as the tag handler has no means to extract this data.
单选题
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 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.
参考解析
解析：
暂无解析
相关考题：
Servlet A receives a request that it forwards to servlet B within another web application in the same webcontainer. Servlet A needs to share data with servlet B and that data must not be visible to other servlets inA’s web application. In which object can the data that A shares with B be stored？（）A、HttpSessionB、ServletConfigC、ServletContextD、HttpServletRequestE、HttpServletResponse
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. %-- tag declaration --% 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）；. }
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.
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？ （）A、 A element in the echo tag LTD must have the value JSPB、 The echo tag handler must define the setAttribute （String key， String value） methodC、 The true element must appear in the echo tag TLDD、 The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.IterationTag interfaceE、 The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.DynamicAttributes interface
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？（）A、Your deployment descriptor will need to contain this tag： CUSTOM.B、The related custom HTML login page must be named loginPage.html.C、When you use this type of authentication， SSL is turned on automatically.D、You 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.E、In the HTML related to authentication for this application， you must use predefined variable names fort he variables that store the user and password values.
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？（）A、Dispatcher view=context.getDispatcher（viewURL）；view.forward Request（request， response）；B、Dispatcher view=request.getDispatcher（viewURL）；view.forward Request（request， response）；C、RequestDispatcher view. =context.getRequestDispatcher（viewURL）；view.forward（request，response）；D、RequestDispatcher view=request.getRequestDispatcher（viewURL）；view.forward（request， response）；
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.
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 %’ /
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.%@ taglib prefix="x" 2.tagdir="/WEB-INF/tags/alpha" % 3. The sort.jsp page is requested. Which two are true？（）A、Tag files can only be accessed using a tagdir attribute.B、The sort.jsp page translates successfully and invokes the tag defined by beta.tag.C、The sort.jsp page produces a translation error because a taglib directive must always have a uriattribute.D、Tag files can only be placed in /WEB-INF/tags， and NOT in any subdirectories of /WEB- INF/tags.E、The 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.
You are building JSP pages that have a set of menus that are visible based on a user’s security role. Thesemenus are hand-crafted by your web design team； for example， the SalesManager role has a menu in thefile /WEB-INF/html/sales-mgr-menu.html. Which JSP code snippet should be used to make this menuvisible to the user？（）A、% if （ request.isUserInRole（"SalesManager"） ） { % %@ include file=’/WEB-INF/html/sales-mgr-menu.html’ % % } %B、jsp：if test=’request.isUserInRole（"SalesManager"）’ %@ include file=’/WEB-INF/html/sales-mgr-menu.html’ % /jsp：ifC、% if （ request.isUserInRole（"SalesManager"） ） { % . jsp：include file=’/WEB-INF/html/sales-mgr-menu.html’ / . % } %D、jsp：if test=’request.isUserInRole（"SalesManager"）’ jsp：include file=’/WEB-INF/html/sales-mgr-menu.html’ / /jsp：if
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.
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
You create a large, n-tier Web application that has a custom event tracking system. You need to create a custom event type that enables your event tracking system to record all relevant event details for all types of events. The events must be stored in Microsoft SQL Server. From which base type should your custom event type inherit? （）A、IWeb Event Custom EvaluatorB、Web Event ProviderC、Web Base EventD、Web Audit Event
单选题You need to create a servlet filter that stores all request headers to a database for all requests to the webapplication’s home page "/index.jsp". Which HttpServletRequest method allows you to retrieve all of therequest headers？（）AString[] getHeaderNames（）BString[] getRequestHeaders（）Cjava.util.Iterator getHeaderNames（）Djava.util.Iterator getRequestHeaders（）Ejava.util.Enumeration getHeaderNames（）
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？（）Ajsp：include page=’/WEB-INF/jsp/header.jsp’jsp：param name=’pageName’ value=’Welcome Page’ / /jsp：includeBjsp：import page=’/WEB-INF/jsp/header.jsp’jsp：param name=’pageName’ value=’Welcome Page’ / /jsp：importCjsp：include page=’/WEB-INF/jsp/header.jsp’jsp：attribute name=’pageName’ value=’Welcome Page’ / . /jsp：includeDjsp：import page=’/WEB-INF/jsp/header.jsp’. jsp：attribute name=’pageName’ value=’Welcome Page’ / . /jsp：import
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.
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
单选题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？（）ADispatcher view=context.getDispatcher（viewURL）；view.forward Request（request， response）；BDispatcher view=request.getDispatcher（viewURL）；view.forward Request（request， response）；CRequestDispatcher view. =context.getRequestDispatcher（viewURL）；view.forward（request，response）；DRequestDispatcher view=request.getRequestDispatcher（viewURL）；view.forward（request， response）；
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？（）Ajsp：insert page=’${bodyURL}’ /Bjsp：insert file=’${bodyURL}’ /Cjsp：include page=’${bodyURL}’ /Djsp：include file=’${bodyURL}’ /Ejsp：insert page=’%= bodyURL %’ /
单选题Servlet A receives a request that it forwards to servlet B within another web application in the same webcontainer. Servlet A needs to share data with servlet B and that data must not be visible to other servlets inA’s web application. In which object can the data that A shares with B be stored？（）AHttpSessionBServletConfigCServletContextDHttpServletRequestEHttpServletResponse
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.
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’ %Bjsp:page contentType='application/javascript' /Cjsp:document contentType='application/javascript' /Djsp:directive.page contentType='application/javascript' /ENo 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.
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？（）Apublic void doTag（） {JspTag docTag = findAncestorWithClass（this， DocumentTag.class）； （（DocumentTag）docTag）.addCitation（this.docID）；}Bpublic void doStartTag（） {JspTag docTag = findAncestorWithClass（this， DocumentTag.class）； （（DocumentTag）docTag）.addCitation（this.docID）；}Cpublic void doTag（） {. Tag docTag = findAncestor（this， DocumentTag.class）； . （（DocumentTag）docTag）.addCitation（this.docID）；. }Dpublic void doStartTag（） {. Tag docTag = findAncestor（this， DocumentTag.class）； . （（DocumentTag）docTag）.addCitation（this.docID）；. }
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
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？（）Ajsp：insert page=’/WEB-INF/jsp/header.jsp’. ${pageTitle=’Welcome Page’}. /jsp：insertBjsp：include page=’/WEB-INF/jsp/header.jsp’. ${pageTitle=’Welcome Page’}. /jsp：includeCjsp：include file=’/WEB-INF/jsp/header.jsp’. ${pageTitle=’Welcome Page’}. /jsp：includeDjsp：insert page=’/WEB-INF/jsp/header.jsp’. jsp：param name=’pageTitle’ value=’Welcome Page’ / . /jsp：insertEjsp：include page=’/WEB-INF/jsp/header.jsp’. jsp：param name=’pageTitle’ value=’Welcome Page’ / . /jsp：include
单选题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？（）ASet the body content type to JSP in the TLDBScriptlet code is NOT legal in the body of st：simple.CAdd scripting-enabled=true to the start tag for the st：simple elementDAdd 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
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.