foreach循环遍历出的radio框如何传递到后台controller层

AnthonyChenny 2017-10-31 07:20:55

用的框架写的,前台遍历出多个radio框,我现在想传到controller层,cotroller参数该怎样接受呢?

<form action="${ctx}/answer/insert" id="frm">

			<input  type="text" value="${user.getId()}" name="stuid" style="display:none"/>

				<!--选择题-->

				<c:if test="${selectionpapers.size()!=0}">

					<div class="xuanzhe">

						<div style="font-size: 22px; margin-top: 30px; color: #2b669a">选择题</div>

						<ol>

							<c:forEach items="${selectionpapers}" var="selectionpapers"

								varStatus="selections">

								<li style="font-size: 24px">

									<div>

										<h3>${selectionpapers.selection.stitle}</h3>

										<table class="daan">

											<tr>

												<input type="text" name="selectionid" style="display:none" value="${selectionpapers.selection.id}"/>

												<td><input type="radio"

													name="selectionanswer<c:out value="${selections.count}"></c:out>"

													value="A" /> <span>A:${selectionpapers.selection.selecta}</span>

												</td>

												<td><input type="radio"

													name="selection<c:out value="${selections.count}"></c:out>"

													value="B" /> <span>B:${selectionpapers.selection.selectb}</span>

												</td>

												<td><input type="radio"

													name="selection<c:out value="${selections.count}"></c:out>"

													value="C" /> <span>C:${selectionpapers.selection.selectc}</span>

												</td>

												<td><input type="radio"

													name="selection<c:out value="${selections.count}"></c:out>"

													value="D" /> <span>D:${selectionpapers.selection.selectd}</span>

												</td>

											</tr>

										</table>

									</div>

								</li>

							</c:forEach>

						</ol>

					</div>

				</c:if>

...全文

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大大的大土豆 2020-09-16

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JSP页面如下：

Controller层打码如下：

qq_33459936 2018-05-14

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前端代码是： <c:forEach items="${choiceList}" var="c"> <h1>选择题<%out.println(a++);%></h1> <p>${c.question}</p> <input type="radio" name="choiceResult${c.id}" value="A" class="answer" />${c.answerOne} <input type="radio" name="choiceResult${c.id}" value="B" class="answer" />${c.answerTwo} <input type="radio" name="choiceResult${c.id}" value="C" class="answer" />${c.answerThree} <input type="radio" name="choiceResult${c.id}" value="D" class="answer" />${c.answerFour} <hr class="clear" /> </c:forEach> struts2后台怎么获取选中的答案？求解大神

qq_33459936 2018-05-14

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请问用的是Struts2框架怎么实现这个功能呢？

AnthonyChenny 2017-11-02

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此问题已解决,使用了枚举,我把jsp代码稍修改,radio的name后面跟着题目的id,在controller层中将两者分开,至于楼上其他给的建议我也试过,拿到的参数在后台操作比较复杂,所以没有用!下面是代码:

Enumeration<String> parameterNames = request.getParameterNames();
		while(parameterNames.hasMoreElements()){
			String param = parameterNames.nextElement();
			if(param.startsWith("selectionanswer")){
				String id = param.substring("selectionanswer".length());   //选择题id
				String answer = request.getParameter(param);               //选择题答案

AnthonyChenny 2017-11-01