例子 :
<s:if test="%{#request.listcatSelect!=null}">
<s:select list="%{#request.listcatSelect}" id='listCatID'
class="form-control" listKey="cid" listValue="description"
headerKey="" headerValue="----------------">
</s:select>
</s:if>
jQuery 對應方法:
alert(1+$("#listCatID option:selected").val());
alert(2+$("#listCatID").val());
alert("3:"+$("#listCatID").find("option:selected").text());