[JSP] 연도 오름차순/내림차순(Core 라이브러리 활용 - forEach)

[연도 오름차순]

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
 
<select id="beforeyear">
   <c:forEach var="i" begin="1900" end="2022"> <!-- 1900~2022년-->
     <option value="${i}">${i }
   </c:forEach>
</select>

 

[연도 내림차순]

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
 
<c:set var="currentyear" value="2022"/> <!--최대값 변수로 잡아줄 것-->
<select id="beforeyear">
   <c:forEach var="i" begin="1900" end="${currentyear }" step="1"> 
     <option value="${currentyear-i+1900}">${currentyear-i+1900}
     <!--
           2022-1900+1900 = 2022
           2022-1901+1900 = 2021
           2022-1902+1900 = 2020
     -->
   </c:forEach>
</select>