JSF 有问题.

<c:if test="${empty userSession.account}" >
<a href="<c:url value="/shop/signonForm.do"/>"><img border="0" name="img_signin" src="../images/sign-in.gif" alt="" /></a>
</c:if>

"empty userSession.accout"啥意思,
怎么连JBuilder 2006 编译都通不过.
哪位大哥有帮小弟解决.感激不尽.



<c:if test="${empty userSession.account}" >
<a href=
"<c:url value="/shop/signonForm.do"/>"><img border="0" name="img_signin" src="../images/sign-in.gif" alt="" /></a>
</c:if>

"empty userSession.accout"啥意思,
怎么连JBuilder 2006 编译都通不过.
哪位大哥有帮小弟解决.感激不尽.