struts2 <s:if test= 值比较问题

Question

获取的
<s:property value="#session['storefrontid']"/> || <s:property value="#parameters['storefrontid']"/>其值都是 1想进行比较 这样写
<s:if test="#session['storefrontid']==#parameters['storefrontid']">报错
Caught an exception while evaluating expression '#session['storefrontid']==#parameters['storefrontid']' against value stack
java.lang.IllegalArgumentException: invalid comparison: java.lang.String and [Ljava.lang.String;

Answer 1

<s:if test="#session.storefrontid == #parameters.storefrontid">这样行不行

Answer 2

#session['storefrontid']==#parameters.storefrontid[0]