Struts <logic:equal>标签的问题

Question

<logic:equal name="charge" property="recno" value="${business.recno}">

Answer 1

<logic:equal name="charge" property="recno" value="<%=param%>">
其中param可以从上下文中得到.

Answer 2

<bean:define id="param" name="business" property="recno"/>
<logic:equal name="charge" property="recno" value="<%=param%>">

Answer 3

<logic:equal name="charge" property="recno" value="${business.recno}">