问一个urlrewrite的问题

我的配置
    <rule>
        <from>^/article([0-9]+).html</from>
        <to type="forward">/detail.action?menuId=$1</to>
    </rule>

比如
http://localhost:8080/aaa/detail.action?menuId=3333

http://localhost:8080/aaa/article3333.html

<package name="front" namespace="/" extends="default">
<action name="detail" class="......" method="detail">
<result name="success" type="dispatcher">
/front/detail.jsp
</result>
</action>

可访问http://localhost:8080/aaa/article3333.html的时候,老是提示/aaa/detail.action is not valid
我怀疑可能是webwork包,命名空间的问题,可一直解决不了,请帮忙