j2ee自定义标签怎么把ValueStack 的值当作属性传入

 <tag>
    <name>pager</name>
    <tag-class>tag.PagerTag</tag-class>
    <body-content>empty</body-content>
    <attribute>
        <name>uri</name>
        <required>true</required>
        <rtexprvalue>true</rtexprvalue>
    </attribute>
    <attribute>
        <name>curpage</name>
        <required>true</required>
        <rtexprvalue>true</rtexprvalue>
    </attribute>
    <attribute>
        <name>pagecount</name>
        <required>true</required>
        <rtexprvalue>true</rtexprvalue>
    </attribute>
    <attribute>
        <name>rowcount</name>
        <required>true</required>
        <rtexprvalue>true</rtexprvalue>
    </attribute>
</tag>

标签是这样定义的..

要怎么调用这个标签才能把值当属性传入?
试试了几个都不行..

<div:pager uri="/admin/main_article_list.html" curpage="#{artcilePage.pageNum}....
<div:pager uri="/admin/main_article_list.html" curpage="#{artcilePage['pageNum']}....