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 setAt

题目
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？ （）
A

A  element in the echo tag LTD must have the value JSP

B

The echo tag handler must define the setAttribute （String key， String value） method

C

The true element must appear in the echo tag TLD

D

The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.IterationTag interface

E

The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.DynamicAttributes interface

相似考题

1. 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）；. }

2. 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

3.Which two statements are true about the security-related tags in a valid Java EE deployment descriptor？（）A、Every  tag must have at least one  tag.B、A  tag can have many  tags.C、A given  tag can apply to only one  tag.D、A given  tag can contain from zero to many  tags.E、It is possible to construct a valid  tag such that，for a given resource，no user rolescan access that resource.

4. 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.

参考答案和解析
正确答案： B,C
解析： 暂无解析
更多“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 setAt”相关问题

  • 第1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？（）

    • 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

    正确答案:B

  • 第2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？（）

    • 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.

    正确答案:D,E

  • 第3题：

    Which statement is true if the do Start Tag method returns EVAL_BODY_BUFFERED？（）

    • A、 The tag handler must extend body Tag.
    • B、 The do After Body method is NOT called.
    • C、 The set Body Content method is called.
    • D、 It is never legal to return EVAL_BODY_BUFFERED from do Start Tag.

    正确答案:C

  • 第4题：

    Given in a single JSP page： <%@ taglib prefix=’java’ uri=’myTags’ %> <%@ taglib prefix=’JAVA’ uri=’moreTags’ %>  Which two are true？（）

    • A、The prefix ’java’ is reserved.
    • B、The URI ’myTags’ must be properly mapped to a TLD file by the web container.
    • C、A translation error occurs because the prefix is considered identical by the web container.
    • D、For the tag usage ， the tag1 must be unique in the union of tag names in ’myTags’ and’moreTags’.

    正确答案:A,B

  • 第5题：

    Assume the tag handler for a st：simpletag extends SimpleTagSupport. In what way can scriptlet code be used 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.

    正确答案:B

  • 第6题：

    Which the two are true about the JSTL core iteration custom tags？（）

    • A、 It may iterate over arrays， collections， maps and strings.
    • B、 The body of the tag may contain EL code， but not scripting code.
    • C、 When looping over collections， a loop status object may be used in the tag body.
    • D、 It may iterate over a map， but only the key of the mapping may be used in the tag body.
    • E、 When looping over integers （for example begin1=’1’ end=’10’）， a loop status object may not be used in the tag body.

    正确答案:A,C

  • 第7题：

    多选题
    Which two statements are true about the security-related tags in a valid Java EE deployment descriptor？（）
    A

    Every  tag must have at least one  tag.

    B

    A  tag can have many  tags.

    C

    A given  tag can apply to only one  tag.

    D

    A given  tag can contain from zero to many  tags.

    E

    It is possible to construct a valid  tag such that，for a given resource，no user rolescan access that resource.


    正确答案： D,A
    解析： 暂无解析

  • 第8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？ （）
    A

    A  element in the echo tag LTD must have the value JSP

    B

    The echo tag handler must define the setAttribute （String key， String value） method

    C

    The true element must appear in the echo tag TLD

    D

    The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.IterationTag interface

    E

    The class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.DynamicAttributes interface


    正确答案： E,B
    解析： 暂无解析

  • 第9题：

    单选题
    Given the Tag：   Assuming the tag referenced by my Tags： get Advice uses the Classic event model，  which is true？（）
    A

     The do After Body method is called.

    B

     The doEnd Tag method is NOT called.

    C

     The type attribute may be specified in the TLD

    D

     The do Start Tag Method must always return SKIP_BODY.

    E

     The TLD for this tag must NOT include a  tag.


    正确答案： E
    解析： 暂无解析

  • 第10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）；. }


    正确答案： A
    解析： 暂无解析

  • 第11题：

    多选题
    Which two are true about the tag handler referneed by my Tag. （）
    A

    The do Start Tag method is called once.

    B

    The do After Body method is NOT called.

    C

    The EVAL_Page constant is a valid return value for the do End Tag Method.

    D

    the EVAL_BODY_BUFFERED constant is a valid return value for the do Start Tag method.


    正确答案： D,B
    解析： 暂无解析

  • 第12题：

    多选题
    A custom tag is defined to take three attributes. Which two correctly invoke the tag within a JSP page？（）
    A

    <prefix：myTag a=foo b=bar c=baz />

    B

    <prefix：myTag attributes={foo，bar，baz} />

    C

    <prefix：myTag jsp：attribute a=foo b=bar c=baz />

    D

    <prefix:myTag><jsp:attribute name=a>foo</jsp:attribute><jsp:attribute name=b>bar</jsp:attribute><jsp:attribute name=c>baz</jsp:attribute>. </prefix:myTag>


    正确答案： C,A
    解析： 暂无解析

  • 第13题：

    Given the Tag：   Assuming the tag referenced by my Tags： get Advice uses the Classic event model，  which is true？（）

    • A、 The do After Body method is called.
    • B、 The doEnd Tag method is NOT called.
    • C、 The type attribute may be specified in the TLD
    • D、 The do Start Tag Method must always return SKIP_BODY.
    • E、 The TLD for this tag must NOT include a  tag.

    正确答案:C

  • 第14题：

    Under what two circumstances is the set JspBody method NOT called in a tag class that implements the Simple Tag interface？ （）

    • A、 The tag is invoked without a body.
    • B、 The doTAb method throws an exception.
    • C、 The  element has the value empty.
    • D、 The tag is called with the attribute skip-body=true

    正确答案:A,C

  • 第15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.<%@ 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.

    正确答案:B,E

  • 第16题：

    A custom tag is defined to take three attributes. Which two correctly invoke the tag within a JSP page？（）

    • A、<prefix：myTag a="foo" b="bar" c="baz" />
    • B、<prefix：myTag attributes={"foo"，"bar"，"baz"} />
    • C、<prefix：myTag jsp：attribute a="foo" b="bar" c="baz" />
    • D、<prefix:myTag><jsp:attribute name="a">foo</jsp:attribute><jsp:attribute name="b">bar</jsp:attribute><jsp:attribute name="c">baz</jsp:attribute>. </prefix:myTag>

    正确答案:A,B,D

  • 第17题：

    Which two are true concerning the objects available to developers creating tag files？（）

    • A、The session object must be declared explicitly.
    • B、The request and response objects are available implicitly.
    • C、The output stream is available through the implicit outStream object.
    • D、The servlet context is available through the implicit servletContext object.
    • E、The JspContext for the tag file is available through the implicit jspContext object.

    正确答案:B,E

  • 第18题：

    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？（）
    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.


    正确答案： A,B
    解析： 暂无解析

  • 第19题：

    单选题
    Which statement is true if the do Start Tag method returns EVAL_BODY_BUFFERED？（）
    A

     The tag handler must extend body Tag.

    B

     The do After Body method is NOT called.

    C

     The set Body Content method is called.

    D

     It is never legal to return EVAL_BODY_BUFFERED from do Start Tag.


    正确答案： C
    解析： 暂无解析

  • 第20题：

    多选题
    Given in a single JSP page：   Which two are true？（）
    A

    The prefix ’java’ is reserved.

    B

    The URI ’myTags’ must be properly mapped to a TLD file by the web container.

    C

    A translation error occurs because the prefix is considered identical by the web container.

    D

    For the tag usage ， the tag1 must be unique in the union of tag names in ’myTags’ and’moreTags’.


    正确答案： D,C
    解析： 暂无解析

  • 第21题：

    多选题
    Which two are true concerning the objects available to developers creating tag files？（）
    A

    The session object must be declared explicitly.

    B

    The request and response objects are available implicitly.

    C

    The output stream is available through the implicit outStream object.

    D

    The servlet context is available through the implicit servletContext object.

    E

    The JspContext for the tag file is available through the implicit jspContext object.


    正确答案： A,B
    解析： 暂无解析

  • 第22题：

    单选题
    The tag handler for n：recurse extends SimpleTagSupport.Assuming an n：recurse tag can either contain an empty body or another n：recurse tag， which strategy allows the tag handler for n：recurse to output the nesting depth of the deepest n：recurse tag？（）
    A

     It is impossible to determine the deepest nesting depth because it is impossible for tag handlers that extend SimpleTagSupport to communicate with their parent and child tags

    B

     Create a private non-static attribute in the tag handler class called count of type int initialized to      oIncrement count in the doTag method. If the tag has a body， invoke the fragment for that body. Otherwise， output the value of count

    C

     Start a counter at 1. Call getChildTags（）. If it returns null， output the value of the counter.      Otherwise， increment counter and continue from where getChildTags（） is called. Skip      processing of the body.

    D

     If the tag has a body， invoke the fragment for that body. Otherwise， start a counter at 1. Call      getParent（）. If it returns null， output the value of the counter. Otherwise， increment the counter      and continue from where getParent（） is called.


    正确答案： B
    解析： 暂无解析

  • 第23题：

    多选题
    Under what two circumstances is the set JspBody method NOT called in a tag class that implements the Simple Tag interface？ （）
    A

    The tag is invoked without a body.

    B

    The doTAb method throws an exception.

    C

    The  element has the value empty.

    D

    The tag is called with the attribute skip-body=true


    正确答案： D,A
    解析： 暂无解析

  • 第24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？（）
    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.


    正确答案： A,E
    解析： 暂无解析

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