web-app_2_2.dtd

java程序100例

<!--
The web-app element is the root of the deployment descriptor for
a web application
-->

<!ELEMENT web-app (icon?, display-name?, description?, distributable?,
context-param*, servlet*, servlet-mapping*, session-config?,
mime-mapping*, welcome-file-list?, error-page*, taglib*,
resource-ref*, security-constraint*, login-config?, security-role*,
env-entry*, ejb-ref*)>

<!--
The icon element contains a small-icon and a large-icon element
which specify the location within the web application for a small and
large image used to represent the web application in a GUI tool. At a
minimum, tools must accept GIF and JPEG format images.
-->

<!ELEMENT icon (small-icon?, large-icon?)>

<!--
The small-icon element contains the location within the web
application of a file containing a small (16x16 pixel) icon image.
-->

<!ELEMENT small-icon (#PCDATA)>

<!--
The large-icon element contains the location within the web
application of a file containing a large (32x32 pixel) icon image.
-->

<!ELEMENT large-icon (#PCDATA)>

<!--
The display-name element contains a short name that is intended
to be displayed by GUI tools
-->

<!ELEMENT display-name (#PCDATA)>

<!--
The description element is used to provide descriptive text about
the parent element.
-->

<!ELEMENT description (#PCDATA)>

<!--
The distributable element, by its presence in a web application
deployment descriptor, indicates that this web application is
programmed appropriately to be deployed into a distributed servlet
container
-->

<!ELEMENT distributable EMPTY>

<!--
The context-param element contains the declaration of a web
application's servlet context initialization parameters.
-->

<!ELEMENT context-param (param-name, param-value, description?)>

<!--
The param-name element contains the name of a parameter.
-->

<!ELEMENT param-name (#PCDATA)>

<!--
The param-value element contains the value of a parameter.
-->

<!ELEMENT param-value (#PCDATA)>

<!--
The servlet element contains the declarative data of a
servlet. If a jsp-file is specified and the load-on-startup element is
present, then the JSP should be precompiled and loaded.
-->

<!ELEMENT servlet (icon?, servlet-name, display-name?, description?,
(servlet-class|jsp-file), init-param*, load-on-startup?, security-role-ref*)>

<!--
The servlet-name element contains the canonical name of the
servlet.
-->

<!ELEMENT servlet-name (#PCDATA)>

<!--
The servlet-class element contains the fully qualified class name
of the servlet.
-->

<!ELEMENT servlet-class (#PCDATA)>

<!--
The jsp-file element contains the full path to a JSP file within
the web application.
-->

<!ELEMENT jsp-file (#PCDATA)>

<!--
The init-param element contains a name/value pair as an
initialization param of the servlet
-->

<!ELEMENT init-param (param-name, param-value, description?)>

<!--
The load-on-startup element indicates that this servlet should be
loaded on the startup of the web application. The optional contents of
these element must be a positive integer indicating the order in which
the servlet should be loaded. Lower integers are loaded before higher
integers. If no value is specified, or if the value specified is not a
positive integer, the container is free to load it at any time in the
startup sequence.
-->

<!ELEMENT load-on-startup (#PCDATA)>

<!--
The servlet-mapping element defines a mapping between a servlet
and a url pattern
-->

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

<!--
The url-pattern element contains the url pattern of the
mapping. Must follow the rules specified in Section 10 of the Servlet
API Specification.
-->

<!ELEMENT url-pattern (#PCDATA)>

<!--
The session-config element defines the session parameters for
this web application.
-->

<!ELEMENT session-config (session-timeout?)>

<!--
The session-timeout element defines the default session timeout
interval for all sessions created in this web application. The
specified timeout must be expressed in a whole number of minutes.
-->

<!ELEMENT session-timeout (#PCDATA)>

<!--
The mime-mapping element defines a mapping between an extension
and a mime type.
-->

<!ELEMENT mime-mapping (extension, mime-type)>

<!--
The extension element contains a string describing an
extension. example: "txt"
-->

<!ELEMENT extension (#PCDATA)>

<!--
The mime-type element contains a defined mime type. example:
"text/plain"
-->

<!ELEMENT mime-type (#PCDATA)>

<!--
The welcome-file-list contains an ordered list of welcome files
elements.
-->

<!ELEMENT welcome-file-list (welcome-file+)>

<!--
The welcome-file element contains file name to use as a default
welcome file, such as index.html
-->

<!ELEMENT welcome-file (#PCDATA)>

<!--
The taglib element is used to describe a JSP tag library.
-->

<!ELEMENT taglib (taglib-uri, taglib-location)>

<!--
The taglib-uri element describes a URI, relative to the location
of the web.xml document, identifying a Tag Library used in the Web
Application.
-->

<!ELEMENT taglib-uri (#PCDATA)>

<!--
the taglib-location element contains the location (as a resource
relative to the root of the web application) where to find the Tag
Libary Description file for the tag library.
-->

<!ELEMENT taglib-location (#PCDATA)>

<!--
The error-page element contains a mapping between an error code
or exception type to the path of a resource in the web application
-->

<!ELEMENT error-page ((error-code | exception-type), location)>

<!--
The error-code contains an HTTP error code, ex: 404
-->

<!ELEMENT error-code (#PCDATA)>

<!--
The exception type contains a fully qualified class name of a
Java exception type.
-->

<!ELEMENT exception-type (#PCDATA)>

<!--
The location element contains the location of the resource in the
web application
-->

<!ELEMENT location (#PCDATA)>

<!--
The resource-ref element contains a declaration of a Web
Application's reference to an external resource.
-->

<!ELEMENT resource-ref (description?, res-ref-name, res-type, res-auth)>

<!--
The res-ref-name element specifies the name of the resource
factory reference name.
-->

<!ELEMENT res-ref-name (#PCDATA)>

<!--
The res-type element specifies the (Java class) type of the data
source.
-->

<!ELEMENT res-type (#PCDATA)>

<!--
The res-auth element indicates whether the application component
code performs resource signon programmatically or whether the
container signs onto the resource based on the principle mapping
information supplied by the deployer. Must be CONTAINER or SERVLET
-->

<!ELEMENT res-auth (#PCDATA)>

<!--
The security-constraint element is used to associate security
constraints with one or more web resource collections
-->

<!ELEMENT security-constraint (web-resource-collection+,
auth-constraint?, user-data-constraint?)>

<!--
The web-resource-collection element is used to identify a subset
of the resources and HTTP methods on those resources within a web
application to which a security constraint applies. If no HTTP methods
are specified, then the security constraint applies to all HTTP