spring 集成 log4j 配置

<context-param>
      <param-name>log4jConfigLocation</param-name>
      <param-value>/WEB-INF/classes/log4j.properties</param-value>
   </context-param>
   <context-param>
        <param-name>webAppRootKey</param-name>  
        <param-value>myappfuse.root</param-value>  
    </context-param> 
   <context-param>
      <param-name>log4jRefreshInterval</param-name>
      <param-value>6000</param-value>
   </context-param>
    <listener>
      <listener-class>
        org.springframework.web.util.Log4jConfigListener
      </listener-class>
   </listener>