The function equals must be used with a prefix when a default namespace is not specified
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报错: The function equals must be used with a prefix when a default namespace is not specified.
jsp页面代码:<c:if test="${list.size()!=0}"></c:if>
后台action中传一个list到页面,这段代码在本机没问题,部署到另外一台服务器上报错,
最后发现原因是tomcat版本问题,tomcat7支持这种写法,而tomcat6不支持.
解决方法:引入 <%@ taglib prefix="fs" uri="http://java.sun.com/jsp/jstl/functions"%>
代码写成:
<c:if test="${fs:length(list)!=0}"></c:if>
就兼容了.
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