用于对象集合的表单的Freemarker语法(Spring 3 MVC) [英] Freemarker syntax for a form for a collection of objects (Spring 3 MVC)
问题描述
我有一个命令bean(FooList
),它的属性是一个集合(Foo
bean的List
).
I have a command bean (FooList
) which has a property which is a collection (a List
of Foo
beans).
我正在尝试创建一个可以一次编辑所有Foo
的表单.我发现了许多使用JSP进行此操作的示例,但是我很难将它们转换为Freemarker语法.
I'm trying to create a form which can edit all the Foo
s at once. I have found many examples of how to do this using JSP, but I'm having trouble translating these to Freemarker syntax.
在我的Freemarker模板中,我可以轻松地遍历集合:
In my Freemarker template, I can easily iterate over the collection:
[#list fooList.foos as foo]
...
[/#list]
我还可以通过索引引用特定的Foo
:
I can also refer to a particular Foo
by index:
[@spring.bind "fooList.foos[0].name" /]
<input type="text" name="${spring.status.expression}" value="${spring.status.value?default('')}"/>
但是,我还没有弄清楚如何同时将两个Foo
绑定成表单元素.
However, I haven't yet worked out how I can do both at the same time, to bind all the Foo
s to form elements.
这是一次幼稚的尝试,但失败了:
Here's one naïve attempt which failed:
[#list fooList.foos as foo]
[@spring.bind "fooList.foos[foo_index].name" /]
...
[/#list]
(${foo_index}
独自在循环内工作.)
(On its own, ${foo_index}
works inside the loop.)
有人能指出我正确的方向吗?
Can anyone point me in the right direction?
谢谢.
推荐答案
遇到了同样的问题.这对我有用:
Just had the same problem. This worked for me:
[#list fooList.foos as foo]
<#assign item>fooList.foos[${foo_index}].name</#assign>
[@spring.bind item /]
...
[/#list]
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