Get list length in EL expression

Author: San Nian

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Problem: The length of the list cannot be obtained through ${list.size}
in the jsp page

Solution:
1. Import the jar package: jstl-1.2.jar
2. Add it to the jsp page

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> 
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%> 

3. The length of the list is:

${fn:length(list)}