Websphere下面过滤器和tomcat下面有什么区别

在tomcat下面配置的web.xml中的过滤器换到Websphere不起作用，请求是如何配置呀？

         <filter>
<filter-name>testFilter</filter-name>
<filter-class>com.aa.testFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>LoginFilter</filter-name>
<url-pattern>/aa/aa.jsp</url-pattern>
</filter-mapping>
websphere filter

补充：Java ,  Web 开发