JSTL开发实例详解

现在做一个web项目，需要实现以下功能 选着不同的选项，显示不同的内容。 那么显然需要用到JSTL里的选择标签。 下面是实现方案： 前端的数据是后端服务给的，比如，grade字段是true则表明已经评分，id==null则表明没有提交。

<!-- 作业列表 --> <div id="homeworkDetail"> <div class="tabHomework"> <input type="radio" name="homework" value="1" checked="checked" /><label for="" class="checked">全部</label> <input type="radio" name="homework" value="2" /> <label for="">未提交</label> <input type="radio" name="homework" value="3" /> <label for="">未评分</label> <input type="radio" name="homework" value="4" /> <label for="">已评分</label> </div> <!-- 全部列表 --> <ul class="homeWorkUL" id="all"> <c:forEach var="mymap" items="${map}"> <c:forEach var="submitMap" items="${mymap.value}" varStatus="abc"> <li><a href="mainView/courseHomework/courseHomeworkDetailLook.jsp?AssignmentSubmit=${submitMap.value}"> <ul class="subHomeWorkUL"> <li id="realName">${submitMap.value.realName}</li> <li id="userName">${submitMap.key}</li> <li id="Grade"> <c:choose> <c:when test="${submitMap.value.id == null}">未提交</c:when> <c:when test="${submitMap.value.rejected}">被打回</c:when> <c:when test="${submitMap.value.graded}">${submitMap.value.gradePoint}</c:when> <c:otherwise> <strong>未评分</strong> </c:otherwise> </c:choose> </li> </ul> </a> </li> </c:forEach> </c:forEach> </ul> <!-- 未提交 --> <ul class="homeWorkUL" id="noSubmit"> <c:forEach var="mymap" items="${map}"> <c:forEach var="submitMap" items="${mymap.value}" varStatus="abc"> <c:choose> <c:when test="${submitMap.value.id == null}"> <li><a href="mainView/courseHomework/courseHomeworkDetailLook.jsp"> <ul class="subHomeWorkUL"> <li id="realName">${submitMap.value.realName}</li> <li id="userName">${submitMap.key}</li> <li id="state">未提交</li> </ul> </a></li> </c:when> <c:otherwise></c:otherwise> </c:choose> </c:forEach> </c:forEach> </ul> <!-- 未评分 --> <ul class="homeWorkUL" id="noEvaluate"> <c:forEach var="mymap" items="${map}"> <c:forEach var="submitMap" items="${mymap.value}" varStatus="abc"> <c:choose> <c:when test="${submitMap.value.id!=null && submitMap.value.graded eq false}"> <li> <a href="mainView/courseHomework/courseHomeworkDetailLook.jsp"> <ul class="subHomeWorkUL"> <li id="realName">${submitMap.value.realName}</li> <li id="userName">${submitMap.key}</li> <li id="state">未评分</li> </ul> </a></li> </c:when> <c:otherwise></c:otherwise> </c:choose> </c:forEach> </c:forEach> </ul> <!-- 已评分 --> <ul class="homeWorkUL" id="evaluate"> <c:forEach var="mymap" items="${map}"> <c:forEach var="submitMap" items="${mymap.value}" varStatus="abc"> <c:choose> <c:when test="${submitMap.value.graded}"> <li> <a href="mainView/courseHomework/courseHomeworkDetailLook.jsp"> <ul class="subHomeWorkUL"> <li id="realName">${submitMap.value.realName}</li> <li id="userName">${submitMap.key}</li> <li id="Grade">${submitMap.value.gradePoint}</li> </ul> </a> </li> </c:when> <c:otherwise></c:otherwise> </c:choose> </c:forEach> </c:forEach> </ul> </div> </div> </div> 相关资源：jstl开发教程