spring security - Difference between two action signatures in grails -


In grails, we can define an action using 2 methods: - 

  Def action name () {}

and 

  def actionname = {}

what is the difference between two styles is? When I tried to put spring security annotation on the action (second genre), then he said it is not applicable to the "safe" field . what does this mean ? Is it due to closing? Grails refer to the use of closures for controller functions in the preceding versions of the Grails Reference Document, itemprop = "text">

Personally, I use methods in all my controllers and this issue has also come with comments like @ safe which work only on methods and Not Closer


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