STRUTS2.0 s:if标签中 TEST 比较有关问题_Java Web开发

STRUTS2.0 s:if标签中 TEST 比较问题

Java code

<s:if test="%{keyPeopleFlag.isBaby} == 0">    <div id="keyPeopleflag.FlagBaby" class="divFlag"          style="background-color:RGB(204, 255, 204); color : black;">    儿童s:if    </div></s:if><s:else>    <div id="keyPeopleflag.FlagBaby" class="divFlag" style="background-color:RGB(255, 255, 255); color : gray;">     儿童s:else    </div></s:else>

以上是页面代码

Java code

    private TKeyPeopleFlag keyPeopleFlag;    public TKeyPeopleFlag getKeyPeopleFlag() {        return keyPeopleFlag;    }    public void setKeyPeopleFlag(TKeyPeopleFlag keyPeopleFlag) {        this.keyPeopleFlag = keyPeopleFlag;    }

以上是 ACTION中的代码

已经在 action中放了 SET 和GET 方法，但是在 s:if 标签中怎么比较才能得出正确的值？？？？
已经试验了，好几次，都无法得到正确的结果

有高手来回答一下吧

------解决方案--------------------------------------------------------
lz把这<s:if test="%{keyPeopleFlag.isBaby} == 0">
改成这样
<s:if test="%{keyPeopleFlag.isBaby == 0}">

------解决方案--------------------------------------------------------
如果还不行的话再<s:if test="${keyPeopleFlag.isBaby} == '0'">

------解决方案--------------------------------------------------------

探讨
如果还不行的话再<s:if test="${keyPeopleFlag.isBaby} == '0'">

------解决方案--------------------------------------------------------
<s:if test="%{keyPeopleFlag.isBaby == 0 }">

或

<s:if test="%{keyPeopleFlag.isBaby == \"0\" }">

------解决方案--------------------------------------------------------
<s:if test="${keyPeopleFlag.isBaby == '0'}">