difference between using and not using @modelAttribute in method parameter

Question

I am new to spring mvc and have seen examples where folks use @ModelAttribute("form") Person person in method parameter and some who just do (Person person). what is the difference.

Thanks in advance

skaffman · Accepted Answer · 2010-08-17 18:52:24Z

3

If you don't specify @ModelAttribute in this situation, then Spring will infer the presence of one. In this case, it would infer @ModelAttribute("person"). The argument is the name of the model.

If you don't want the default name, or if you just want to be explicit about saying that the Person parameter is a model attribute, then you should specify @ModelAttribute, with or without the explicit name.

answered Aug 17, 2010 at 18:52

skaffman

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axtavt · Accepted Answer · 2010-08-17 14:13:58Z

2

@ModelAttribute allows you to specify the name of the model attribute. When parameter doesn't have this annotation, a decapitalized class name is used as an attribute name, i.e. Person p -> "person".

answered Aug 17, 2010 at 14:13

axtavt

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