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[top] / java / tomcat / webapps / docs / appdev / web.xml.txt

     <?xml version="1.0" encoding="ISO-8859-1"?>
     <!--
       Licensed to the Apache Software Foundation (ASF) under one or more
       contributor license agreements.  See the NOTICE file distributed with
       this work for additional information regarding copyright ownership.
       The ASF licenses this file to You under the Apache License, Version 2.0
       (the "License"); you may not use this file except in compliance with
       the License.  You may obtain a copy of the License at
     
           http://www.apache.org/licenses/LICENSE-2.0
     
       Unless required by applicable law or agreed to in writing, software
       distributed under the License is distributed on an "AS IS" BASIS,
       WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       See the License for the specific language governing permissions and
       limitations under the License.
     -->
     
     <!DOCTYPE web-app 
         PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 
         "http://java.sun.com/dtd/web-app_2_3.dtd">
     
     <web-app>
     
     
         <!-- General description of your web application -->
     
         <display-name>My Web Application</display-name>
         <description>
           This is version X.X of an application to perform
           a wild and wonderful task, based on servlets and
           JSP pages.  It was written by Dave Developer
           (dave@mycompany.com), who should be contacted for
           more information.
         </description>
     
     
         <!-- Context initialization parameters that define shared
              String constants used within your application, which
              can be customized by the system administrator who is
              installing your application.  The values actually
              assigned to these parameters can be retrieved in a
              servlet or JSP page by calling:
     
                  String value =
                    getServletContext().getInitParameter("name");
     
              where "name" matches the <param-name> element of
              one of these initialization parameters.
     
              You can define any number of context initialization
              parameters, including zero.
         -->
     
         <context-param>
           <param-name>webmaster</param-name>
           <param-value>myaddress@mycompany.com</param-value>
           <description>
             The EMAIL address of the administrator to whom questions
             and comments about this application should be addressed.
           </description>
         </context-param>
     
     
         <!-- Servlet definitions for the servlets that make up
              your web application, including initialization
              parameters.  With Tomcat, you can also send requests
              to servlets not listed here with a request like this:
     
                http://localhost:8080/{context-path}/servlet/{classname}
     
              but this usage is not guaranteed to be portable.  It also
              makes relative references to images and other resources
              required by your servlet more complicated, so defining
              all of your servlets (and defining a mapping to them with
              a servlet-mapping element) is recommended.
     
              Servlet initialization parameters can be retrieved in a
              servlet or JSP page by calling:
     
                  String value =
                    getServletConfig().getInitParameter("name");
     
              where "name" matches the <param-name> element of
              one of these initialization parameters.
     
              You can define any number of servlets, including zero.
         -->
     
         <servlet>
           <servlet-name>controller</servlet-name>
           <description>
             This servlet plays the "controller" role in the MVC architecture
             used in this application.  It is generally mapped to the ".do"
             filename extension with a servlet-mapping element, and all form
             submits in the app will be submitted to a request URI like
             "saveCustomer.do", which will therefore be mapped to this servlet.
     
             The initialization parameter names for this servlet are the
             "servlet path" that will be received by this servlet (after the
             filename extension is removed).  The corresponding value is the
             name of the action class that will be used to process this request.
           </description>
           <servlet-class>com.mycompany.mypackage.ControllerServlet</servlet-class>
           <init-param>
             <param-name>listOrders</param-name>
             <param-value>com.mycompany.myactions.ListOrdersAction</param-value>
           </init-param>
           <init-param>
             <param-name>saveCustomer</param-name>
             <param-value>com.mycompany.myactions.SaveCustomerAction</param-value>
           </init-param>
           <!-- Load this servlet at server startup time -->
           <load-on-startup>5</load-on-startup>
         </servlet>
     
         <servlet>
           <servlet-name>graph</servlet-name>
           <description>
             This servlet produces GIF images that are dynamically generated
             graphs, based on the input parameters included on the request.
             It is generally mapped to a specific request URI like "/graph".
           </description>
         </servlet>
     
     
         <!-- Define mappings that are used by the servlet container to
              translate a particular request URI (context-relative) to a
              particular servlet.  The examples below correspond to the
              servlet descriptions above.  Thus, a request URI like:
     
                http://localhost:8080/{contextpath}/graph
     
              will be mapped to the "graph" servlet, while a request like:
     
                http://localhost:8080/{contextpath}/saveCustomer.do
     
              will be mapped to the "controller" servlet.
     
              You may define any number of servlet mappings, including zero.
              It is also legal to define more than one mapping for the same
              servlet, if you wish to.
         -->
     
         <servlet-mapping>
           <servlet-name>controller</servlet-name>
           <url-pattern>*.do</url-pattern>
         </servlet-mapping>
     
         <servlet-mapping>
           <servlet-name>graph</servlet-name>
           <url-pattern>/graph</url-pattern>
         </servlet-mapping>
     
     
         <!-- Define the default session timeout for your application,
              in minutes.  From a servlet or JSP page, you can modify
              the timeout for a particular session dynamically by using
              HttpSession.getMaxInactiveInterval(). -->
     
         <session-config>
           <session-timeout>30</session-timeout>    <!-- 30 minutes -->
         </session-config>
     
     
     </web-app>
     

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