这是我的Java代码:
List<EmployeeBean>questionList=adao.displayQuestions(eBean,functional_id);
model.addObject("questionList", questionList);
Iterator<EmployeeBean> iterator = questionList.iterator();
while (iterator.hasNext()) {
String q_id =iterator.next().getSk_question_id();
System.out.println("QUESTION ID :"+q_id);
List<EmployeeBean>optionList= adao.displayOptions(eBean,q_id);
model.addObject("optionList", optionList);
}
字符串q_id将具有基于第一个列表(问题列表(的多个 ID。根据q_id,我将从第二个列表(选项列表(中获得多个选项。
这是我在 jsp 中尝试的内容:我无法获得选项列表值。仅获取列表的最后一个值
<c:forEach var="EmployeeBean" items="${questionList}">
${EmployeeBean.question_name }
<c:forEach var="EmployeeBean" items="${optionList}">
<div class="col-xs-4 starategy-data">
<div class="strategy-head">${EmployeeBean.answer_type }</div>
<p>${EmployeeBean.answer }</p>
</div>
</c:forEach>
</c:forEach>
一种可能的方法(如果q_id
没有相关数据列表,则可能无法显示正确(:
List<EmployeeBean>questionList=adao.displayQuestions(eBean,functional_id);
model.addObject("questionList", questionList);
List<List<EmployeeBean>> resultList = new ArrayList<>();
Iterator<EmployeeBean> iterator = questionList.iterator();
while (iterator.hasNext()) {
String q_id = iterator.next().getSk_question_id();
System.out.println("QUESTION ID :"+q_id);
resultList.add(adao.displayOptions(eBean,q_id));//store it by index
}
model.addObject("optionList", resultList);
JSP 代码:
<c:forEach var="EmployeeBean" items="${questionList}" varStatus="status">
${EmployeeBean.question_name }
<c:forEach var="EmployeeBean" items="${optionList.get(status.index)}"><!-- get the related data list -->
<div class="col-xs-4 starategy-data">
<div class="strategy-head">${EmployeeBean.answer_type }</div>
<p>${EmployeeBean.answer }</p>
</div>
</c:forEach>
</c:forEach>
另一种方式(我没有尝试过,你可以测试(
爪哇代码:
List<EmployeeBean>questionList=adao.displayQuestions(eBean,functional_id);
model.addObject("questionList", questionList);
int index = 0;
while (iterator.hasNext()) {
String q_id = iterator.next().getSk_question_id();
System.out.println("QUESTION ID :"+q_id);
model.addObject("optionList_"+index,adao.displayOptions(eBean,q_id));
index++;
}
JSP 代码:
<c:forEach var="EmployeeBean" items="${questionList}" varStatus="status">
${EmployeeBean.question_name }
<c:forEach var="EmployeeBean" items="${optionList_status.index}"><!-- not sure if it can work correct here -->
<div class="col-xs-4 starategy-data">
<div class="strategy-head">${EmployeeBean.answer_type }</div>
<p>${EmployeeBean.answer }</p>
</div>
</c:forEach>
</c:forEach>
试试这个:
List<EmployeeBean>questionList=adao.displayQuestions(eBean,functional_id);
model.addObject("questionList", questionList);
List<EmployeeBean>optionList = new ArrayList<>();
Iterator<EmployeeBean> iterator = questionList.iterator();
while (iterator.hasNext()) {
String q_id =iterator.next().getSk_question_id();
System.out.println("QUESTION ID :"+q_id);
optionList.addAll(adao.displayOptions(eBean,q_id));
}
model.addObject("optionList", optionList);