sumtag.tag

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<%@tag pageEncoding="GBK"%>
<%@attribute name="items" required="true" rtexprvalue="true"%>
<%@attribute name="great" fragment="true"%>
<%@attribute name="less" fragment="true"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@variable name-given="sum" variable-class="java.lang.Object"%>
<c:if test="${not empty items}">
	<c:forEach items="${items}" var="item">
		<c:set var="sum" value="${item+sum}" />
	</c:forEach>

	<c:if test="${sum>=1000}">
		<jsp:invoke fragment="great" />
	</c:if>

	<c:if test="${sum<1000}">
		<jsp:invoke fragment="less" />
	</c:if>
</c:if>