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XML练习文档 不知道自己写的对不对!

2011-09-28 17:07 211 查看

写的一个小练习

<?xml version="1.0" encoding="GBK"?>

<!DOCTYPE web-app [

<!ELEMENT web-app (error-code,error-page,filter,filter-mapping,listener,servlet,servlet-mapping)>

<!ELEMENT error-code (#PCDATA)>

<!ELEMENT error-page ((error-code | exception-type), location)>  <!--这是什么意思?????-->

<!ELEMENT exception-type (#PCDATA)>

<!ELEMENT location (#PCDATA)>

<!ELEMENT filter (filter-name,filter-class)>

<!ELEMENT filter-class (#PCDATA)>

<!ELEMENT filter-mapping (filter-name,url-pattern )>

<!ELEMENT filter-name (#PCDATA)>

<!ELEMENT listener (listener-class)>

<!ELEMENT listener-class (#PCDATA)>

<!ELEMENT servlet (servlet-name,servlet-class)>

<!ELEMENT servlet-class (#PCDATA)>

<!ELEMENT servlet-mapping (servlet-name, url-pattern)>

<!ELEMENT servlet-name (#PCDATA)>

<!ELEMENT url-pattern (#PCDATA)>

]>

<web-app>

 <error-code>#</error-code>

 <error-page>

  <error-code></error-code>

                                                     <!-- <exception-type>#</exception-type>-->

  <location>#</location>

 </error-page>

 <filter></filter>

 <filter-mapping>

  <filter-name>#</filter-name>

  <url-pattern></url-pattern>

 </filter-mapping>

 <listener>

  <listener-class>#</listener-class>

 </listener>

 <servlet>

  <servlet-name></servlet-name>

  <servlet-class>#</servlet-class>

 </servlet>

 <servlet-mapping>

  <servlet-name>#</servlet-name>

  <url-pattern>#</url-pattern>

 </servlet-mapping>

</web-app>
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