el，jstl 判断一个值在不在集合list中

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/qq_24691413/article/details/78849380

${fn:contains(functionId,function.id)}

加入头标签

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

functionId  是个集合

function.id 是个值

     <c:forEach var="function"  items="${list}" varStatus="sta">
             	<tr>
                    <td>
                    	<c:choose>
                    		<c:when test="${fn:contains(functionId,function.id)}">
                    			<input class="cb" type="checkbox" checked="checked" />
                    		</c:when>
                    		<c:otherwise>
                    		<input class="cb" type="checkbox"  />
                    		</c:otherwise>
                    	</c:choose>
                     </td>
                    <td>${function.functionName}</td>
                    <td>${function.funcUrl}</td>
                    <td><fmt:formatDate value="${function.creationTime}" pattern="yyyy-MM-dd HH:mm:ss" /></td>
                    <td>
                    <c:if test="${function.isStart== 1}"></c:if>
               			<c:choose>
               				<c:when test="${function.isStart== 1}"> 启用 </c:when>      
							<c:otherwise> 关闭</c:otherwise> 
						</c:choose>
						                    
                    </td>
                 </tr>
             
             
             </c:forEach>