container/webapps/balancer/WEB-INF/web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
    version="2.4">

  <display-name>Tomcat Simple Load Balancer Example App</display-name>
  <description>
    Tomcat Simple Load Balancer Example App
  </description>

  <!-- BalancerFilter definition -->
  <filter>
    <filter-name>BalancerFilter</filter-name>
    <filter-class>org.apache.webapp.balancer.BalancerFilter</filter-class>
    <init-param>
      <param-name>configUrl</param-name>
      <param-value>/WEB-INF/config/rules.xml</param-value>
    </init-param>
  </filter>

  <!-- BalancerFilter mapping -->
  <filter-mapping>
    <filter-name>BalancerFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>