春季MVC中的隐藏场 [英] Hidden field in spring MVC

问题描述

我想在下面的代码中使用spring hidden标签.在下面的代码中这是否可行，我必须在控制器中编写的内容还是我所做的都是正确的.

I wanted to use spring hidden tag in below code. Is this possible in below code, what I have to write in my controller to do that or what I am doing is correct.

<c:forEach var="record" items="${records}">
    <tr>
        <td>
            <form:form id="myForm" action="list.html" method="post">
                <input type="hidden" name="record" value="${record}" />
                <a href="#" onclick="document.getElementById('myForm').submit();">Submit</a> 
            </form:form>
        </td>
    </tr>
 </c:forEach>

任何帮助都会得到高度重视.

Any help will be highly appriciated.

谢谢

推荐答案

您处于正确的轨道上(取决于您的后备bean是什么)，但是为了在提交时将ID绑定为隐藏字段 自动添加到"Person" bean(在此示例中)，您将执行以下操作:

You are on the right track [depending on what your backing bean is], but in order to bind an ID as a hidden field on submission automatically to a "Person" bean (in this example), you would do something like:

<c:forEach var="person" items="${persons}" varStatus="status">
    <tr>
        <c:set var="personFormId" value="person${status.index}"/>
        ....
        <form id="${personFormId}" action="${deleteUrl}" method="POST">
            <input id="id" name="id" type="hidden" value="${person.id}"/>
        </form>

        <td>${person.firstName}</td>
        <td>${person.lastName}</td>
        .... 
    </tr>
</c:forEach>

如果您想渲染一个隐藏字段，则可以使用form:hidden标签:

In case you'd like to render a hidden field, you would use a form:hidden tag:

<form:hidden path="id" />

看看隐藏的输入标记部分.

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