从每个循环获取请求参数 [英] get request parameter from a for each loop

问题描述

我有一个带有这样的表的JSP

I have a JSP with a table like this

<table border="1">
<tr>
    <th>Step</th>
    <th>Date</th>
</tr>
<c:forEach var="myVar" items="${sessionScope.myBean.myList}" varStatus="status">
    <tr>
    <td><input type="text" name="index" value="${status.count}" disabled></td>
    <td><input type="text" name="date" value="${myVar.date}"></td>
    </tr>
</c:forEach>
</table>

该表位于表单内，带有提交输入标签.

This table is inside a form, with a submit input tag.

假设myList(bean myBean中的list属性)包含2个元素，我的表正确显示了两行，每行分别带有步骤和日期.

Let's say myList (list attribute in the bean myBean) contains 2 elements, my table correctly displays two lines, with step and date on each line.

比方说，我编辑这两行以在每行上输入一个日期.

Let's say I edit both lines to enter a date on each one of them.

当我单击提交输入时，如何获得两个输入的日期?我怎么知道将它们存储在bean列表中的哪个项目中?

When I click the submit input, how can I get both entered dates ? And how can I know into which item from the bean's list they shall be stored ?

发布表单后，我在debug.request.getParameterNames()上进行了调试，但是它仅包含一个"date"参数.

I looked in debug at request.getParameterNames() after POSTing my form, but it only contains one "date" parameter.

谢谢！

推荐答案

使用HttpServletRequest#getParameterValues().这些值与HTML输入元素出现在HTML DOM树中的顺序相同.

Use HttpServletRequest#getParameterValues(). The values are in the same order as the HTML input elements appear in the HTML DOM tree.

String[] dates = request.getParameterValues("date");
// ...

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