JSP JSTL < C: when > tag: condition tag

• Java

< C: when test = "condition" >... Label body < / C: when >

Example

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
  <c:set var = "hours">
    <%=new java.util.Date().getHours()%>
  </c:set>
  <c:choose>
    <c:when test="${hours>1＆＆hours<=6}">早上好！</c:when>
    <c:when test="${hours>6＆＆hours<=11}">上午好！</c:when>
    <c:when test="${hours>11＆＆hours<=17}">下午好！</c:when>
    <c:when test="${hours>17＆＆hours<=24}">晚上好！</c:when>
  </c:choose>
现在时间是:${hours}时
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