The function equals must be used with a prefix when a default namespace is not specified解决
2018-01-12 18:07
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jsp中有
${list.size()} 在tomcat中不支持导致报错
解决方法也比较简答：用jstl的fn标签中的length方法
首先在jsp中引入 <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
然后用${fn:length(list)}，这样的写法就兼容了。
${list.size()} 在tomcat中不支持导致报错
解决方法也比较简答：用jstl的fn标签中的length方法
首先在jsp中引入 <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
然后用${fn:length(list)}，这样的写法就兼容了。
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