<g:message code="my.localized.content" />16.3 Reading Messages
Version: 3.2.0
16.3 Reading Messages
Reading Messages in the View
The most common place that you need messages is inside the view. Use the message tag for this:
As long as you have a key in your messages.properties (with appropriate locale suffix) such as the one below then Grails will look up the message:
my.localized.content=Hola, Me llamo John. Hoy es domingo.Messages can also include arguments, for example:
<g:message code="my.localized.content" args="${ ['Juan', 'lunes'] }" />The message declaration specifies positional parameters which are dynamically specified:
my.localized.content=Hola, Me llamo {0}. Hoy es {1}.Reading Messages in Controllers and Tag Libraries
It’s simple to read messages in a controller since you can invoke tags as methods:
def show() {
    def msg = message(code: "my.localized.content", args: ['Juan', 'lunes'])
}The same technique can be used in tag libraries, but if your tag library uses a custom namespace then you must prefix the call with g.:
def myTag = { attrs, body ->
    def msg = g.message(code: "my.localized.content", args: ['Juan', 'lunes'])
}