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jstl的forEach使用和jstl变量实现自增 

<c:forEach items="${reallyChooseSubjectList}" var="reallyChooseSubject"> 
           
           <tr>
               <td width="20px;">(<%=i %>) </td><td>${reallyChooseSubject.name}</td>
               <td>
                   <input type="hidden" name="subjectId<%=i %>" id="subjectId<%=i %>" value="${reallyChooseSubject.id }">
           
            </td>
           </tr>
           <tr>
               <td width="20px;"><td><input type="radio" name="answer<%=i %>" value="A" />A.${reallyChooseSubject.answer_A}</td><td></td>
           </tr>
           <tr>
               <td width="20px;"><td><input type="radio" name="answer<%=i %>" value="B" />B.${reallyChooseSubject.answer_B}</td><td></td>
           </tr>
           <tr>
               <td width="20px;"><td>
                   <c:if test="${reallyChooseSubject.answer_C != ''}" scope="page">
                       <input type="radio" name="answer<%=i %>"  value="C" />C.${reallyChooseSubject.answer_C}
                   </c:if>
               </td><td></td>
           </tr>
           <tr>
               <td width="20px;"><td>
                   <c:if test="${reallyChooseSubject.answer_D != ''}" scope="page">
                       <input type="radio" name="answer<%=i %>"  value="D" />D.${reallyChooseSubject.answer_D}
                   </c:if>
               </td><td></td>
           </tr>
           <tr><%i++; %></tr>
           </c:forEach>

在循环中变量自增: 

<%@ page contentType="text/html;charset=gbk" %>
<%@taglib uri="http://java.sun.com/jstl/core_rt" prefix="c" %>
<html>
<head>
<title>x</title>
<meta http-equiv="Content-Type" content="text/html;charset=gbk">

</head>
<body>
<c:set var="index" value="0" />
<c:forEach var="x" begin="1" end="9" step="1">
<c:set var="index" value="${index+1}" />
index:${index}
x:${x }
<br>

</c:forEach>
<br>

</body>
</html>

 

posted on 2015-04-17 12:02  nickTimer  阅读(1268)  评论(0)  编辑  收藏  举报