oscache 缓存 action

我在action做了很多访问数据库的操作，要对action进行缓存，请问如何做呢？
我在web.xml中代码，如下：
  <filter>
  <filter-name>CacheFilter</filter-name>
  <filter-class>com.opensymphony.oscache.web.filter.CacheFilter</filter-class>
  <init-param>
  <param-name>key</param-name>
  <param-value>indexjsp</param-value>
  </init-param>  
  <init-param>
  <param-name>time</param-name>
  <param-value>60</param-value>
  </init-param>
  <init-param>
  <param-name>scope</param-name>
  <param-value>application</param-value>
  </init-param>
</filter>

<filter-mapping>
  <filter-name>CacheFilter</filter-name>
  <url-pattern>/index.do</url-pattern>
</filter-mapping>

一般都是数据库做存储
你action做缓存没有意义吧