How do I bind collection attributes to a form in Spring MVC

Question

I\'m trying to bind one of my model objects to the fields of a form, using Spring-MVC. Everything works fine, except that one of the attributes of the model object is an unorder

Answer 1

I think the reason that it doesn't work with a Set is because a the order of a Set is not guaranteed. When you try to bind to the first object on post, it may not have been the first object in that list to render out. For example, items[0] may not be the same between the GET and the POST.

So it should work fine if you use an implementation of Set that is ordered, such as a SortedSet or TreeSet.