Order Of Elements In web.xml Deployment

Order Of Elements In web.xml Deployment Descriptor

This reference details the order that elements should appear in the web.xml Web application deployment descriptor file.

<web-app>
  <icon>
    <small-icon>
    <large-icon>
  </icon>

  <display-name>
  <description>
  <distributable>

  <context-param>
    <param-name>
    <param-value>
    <description>
  </context-param>

  <filter>
    <icon>
      <small-icon>
      <large-icon>
    </icon>
    <filter-name>
    <display-name>
    <description>
    <filter-class>
    <init-param>
      <param-name>
      <param-value>
      <description>
    </init-param>
  </filter>

  <filter-mapping>
    <filter-name>
    <url-pattern>
    <servlet>
  </filter-mapping>

  <listener>
    <listener-class>
  </listener>

  <servlet>
    <icon>
      <small-icon>
      <large-icon>
    </icon>
    <servlet-name>
    <display-name>
    <description>
    <servlet-class> or <jsp-file>
    <init-param>
      <param-name>
      <param-value>
      <description>
    </init-param>
    <load-on-startup>
    <security-role-ref>
      <description>
      <role-name>
      <role-link>
    </security-role-ref>
  </servlet>

  <servlet-mapping>
    <servlet-name>
    <url-pattern>
  </servlet-mapping>

  <session-config>
    <session-timeout>
  </session-config>

  <mime-mapping>
    <extension>
    <mime-type>
  </mime-mapping>

  <welcome-file-list>
    <welcome-file>
  </welcome-file-list>

  <error-page>
    <error-code>
    <exception-type>
    <location>
  </error-page>

  <taglib>
    <taglib-location>
    <taglib-uri>
  </taglib>

  <resource-ref>
    <description>
    <res-ref-name>
    <res-ref-type>
    <res-ref-auth>
    <res-sharing-scope>
  </resource-ref>

  <security-constraint>
    <web-resource-collection>
      <web-resource-name>
      <description>
      <url-pattern>
      <http-method>
    </web-resource-collection>
    <auth-contraint>
      <description>
      <role-name>
    </auth-constraint>
    <user-data-contraint>
      <description>
      <transport-guarantee>
    <user-data-contraint>
  </security-constraint>

  <login-config>
    <auth-method>
    <realm-name>
    <form-login-config>
      <form-login-page>
      <form-error-page>
    </form-login-config>
  </login-config>

  <security-role>
    <description>
    <role-name>
  </security-role>

  <env-entry>
    <description>
    <env-entry-name>
    <env-entry-value>
    <env-entry-type>
  </env-entry>

  <ejb-ref>
    <description>
    <ejb-ref-name>
    <ejb-ref-type>
    <home>
    <remote>
    <ejb-link>
    <run-as>
  </ejb-ref>
</web-app>