jstl 标签 的应用

参考文档：http://www.yiibai.com/jsp/jstl_core_choose_tag.html

1.jstl中foreach序号

<c:forEach items="${signBusList}" var="sign" varStatus="xh">

${xh.count}序号从1开始

${xh.index}序号从0开始

${xh.last}最后一个序号

${xh.first}第一个序号

</cforEach>

2.foreach 循环

	　　　　　　　　　　　　　　　　<tbody>
					<c:if test="${!empty analysisList}">
						<c:forEach var="o" items="${analysisList}" varStatus="status">
							<c:choose>
								<c:when test="${empty o.maclist}">
									<tr class="text-c">
										<td>${status.index + 1}</td>
										<td width="36" height="36">${o.positionName }</td>
										<td width="36" height="36">${o.imsi }</td>
										<td width="36" height="36">${o.datetime }</td>
										<td width="36" height="36"></td>
										<td width="36" height="36"></td>
										<td width="36" height="36"></td>
									</tr>
								</c:when>
								<c:when test="${!empty o.maclist}">
									<c:forEach var="maclist" items="${o.maclist}"
										varStatus="status1">
										<tr class="text-c">
											<td>${status.index + 1}</td>
											<td width="36" height="36">${o.positionName }</td>
											<td width="36" height="36">${o.imsi }</td>
											<td width="36" height="36">${o.datetime }</td>
											<td width="36" height="36">${maclist.mac }</td>
											<td width="36" height="36">${maclist.capture_time }</td>
											<td width="36" height="36">${status1.count}</td>
											<%-- <td width="36" height="36">${status1.last}</td> --%>
										</tr>
									</c:forEach>
								</c:when>
							</c:choose>
						</c:forEach>
					</c:if>
				</tbody>

　　

request.setAttribute("email", email);

<select
        id="isemail" name="isemail" style="width: 230px;height: 30;">
    <option value="${email}" ${email =="是"?"selected='selected'" :""} >是</option>
    <option value="${email}" ${email =="否"?"selected='selected'" :""} >否</option>
</select>