Struts 2 嵌套迭代器 [英] Struts 2 nesting iterators

问题描述

我真不敢相信这么简单的事情在 Struts 2 中怎么做起来这么难.

I can't believe how something this simple can seem so hard to do in Struts 2.

这大约是我想要做的，因为它会在 Java 中完成.

This is approximately what I would like to do as it would be done in Java.

for (Parent parent : parents){
  for (Child child: parent.getChildren()){
     System.out.println(child.getName());
  }
}

这应该在 Stuts 标签中转化为与此接近的内容:

That should translate to something close to this in Stuts tags:

<s:iterator var="parent" value="parents">
  <s:iterator var="child" value="parent.children">
     <s:property value="child.name"/>
  <s:iterator>
<s:iterator>

我认为 parent.children 应该类似于 ${%(#parent.children)} 但我还没有找到 ${%(# 个要使用的字符:-) 的正确组合.我还可以使用一个页面链接来解释何时使用其中的哪一个.

I assume parent.children should be something like ${%(#parent.children)} but I have not found a right combination of ${%(# characters to use :-). I could also use a link to a page explaining when to use which one of these.

推荐答案

试试这个:

<s:iterator var="parent" value="parents">
    <s:iterator var="child" value="#parent.children">
        <s:property value="#child.name"/>
    <s:iterator>
<s:iterator>

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