求助，关于fn.tld的问题

求助，关于fn.tld的问题 [无满意答案结贴,结贴人:hanpoyangtitan]

hanpoyangtitan
韩波洋
等级:

发表于：2007-10-24 14:00:55 楼主

<%@ page contentType="text/html; charset=gbk" language="java" import="java.sql.*" errorPage="" %>
<%@ taglib prefix="c" uri="/WEB-INF/c-1_0.tld" %>
<%@ taglib prefix="fn" uri="/WEB-INF/fn.tld" %>
<script language="javascript" type="text/javascript">
var data=[
<c:forEach items="${data}" var="it" varStatus="s">
{
id:" <c:out value="${it.id}" />",
title:" <c:out value="${it.title}" />",
content=" <c:out value="${it.content}" />"
<c:choose>
<c:when test="${fn:length(data)==s.count}">
<c:out value="" />
</c:when>
<c:otherwise>
c:out value="," />
</c:otherwise>
</c:choose>
}

</c:forEach>
];
</script>
----------------------
Exception
org.apache.jasper.JasperException: <h3>Validation error messages from TagLibraryValidator for c </h3> <p>15: tag = 'when' / attribute = 'test': An error occurred while parsing custom action attribute "test" with value "${fn:length(data)==s.count}": org.apache.taglibs.standard.lang.jstl.parser.ParseException: EL functions are not supported. </p>
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:50)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:411)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:76)
org.apache.jasper.compiler.Validator.validateXmlView(Validator.java:1535)
org.apache.jasper.compiler.Validator.validate(Validator.java:1481)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:214)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:470)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:123)
com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:66)
filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:178)

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