JSTL foreach:获取下一个对象

问题描述

我需要在列表中用foreach将产品展示到3列中.

I need display product in list into 3 columns with foreach.

这是我的代码:

<table>
<c:forEach items="${lstProduct}" var="product" varStatus="status" step="3">
    <tr>
        <td>
             <!--product of column left will be display here -->
             ${product.id}
             ${product.name}
        </td>
        <td>
             <!--product of column middle will be display here -->
             <!--I need something like this:  productMiddle = product.getNext() -->
        </td>
        <td>
             <!--product of column right will be display here -->
             <!-- productRight = productMiddle.getNext() -->
        </td>
    </tr>
</c:forEach>
</table>

问题是如何获得列表中的下一个产品?

The question is how do I get next product in list?

推荐答案

Skaffman给出了很好的答案.另外，您也可以将<tr>放在循环之外，并在适当的时候(即每3个项目)打印中间的</tr><tr>.

Skaffman has given a good answer. As an alternative, you can also just put the <tr> outside the loop and print the intermediate </tr><tr>s at the right moments (i.e. every 3rd item).

<table>
    <tr>
        <c:forEach items="${lstProduct}" var="product" varStatus="loop">
            <c:if test="${not loop.first and loop.index % 3 == 0}">
                </tr><tr>
            </c:if>
            <td>
                 ${product.id}
                 ${product.name}
            </td>
        </c:forEach>
    </tr>
</table>

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