以form:options形式添加数据属性，即在options.tag中 [英] Adding data attribute in form:options, i.e., in options.tag

问题描述

我在pageContext中有一个对象列表，我希望它的某些属性在select的option标记的data属性中.

I have a list of objects in the pageContext and I want some of it's attribute in the data attribute of the option tag of select.

下面是jsp代码:

<form:select class="required chzn_a" disabled="${view}" path="one.id" id="one">
    <form:option value="">Select</form:option>
    <form:options items="${objectList}" itemValue="id" itemLabel="name"/>
</form:select>

我想要以下内容:

但是，下面是我得到的:

However, below is what I am getting :

推荐答案

据我所知，form:options标记不支持这样的自定义.相反，您可以自己遍历选项:

As far as I know the form:options tag does not support customization like this. Instead you can loop through the options yourself like this:

<form:select class="required chzn_a" disabled="${view}" path="one.id" id="one">
    <form:option value="">Select</form:option>

    <c:forEach items="${objectList}" var="objectListEntry">
        <form:option value="${objectListEntry.id}" data-code="${objectListEntry.code}">${objectListEntry.name}</form:option>
    </c:forEach>
</form:select>

spring表单标签实现了DynamicAttributes接口，并且所有未在tld中明确定义的属性都添加到了生成的标签中.

The spring form tags implements the DynamicAttributes interface and all attributes not explicitly defined in the tld are added to the generated tag.

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