缺包
梅子 2010-10-12 01:48:10 引入:
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
调用:c:if test="${fn:length(news.newstitle) > 30}">...</c:if>
报错:The class org.apache.taglibs.standard.functions.Functions specified in TLD for the function fn:length cannot be found: org.apache.taglibs.standard.functions.Functions
请问是缺哪个包?我有jstl.jar这个包。还缺哪个?