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(Quick Reference)

Controller Usage

A controller fulfills the C in the Model View Controller (MVC) pattern and is responsible for handling web requests. In Grails a controller is a class with a name that ends in the convention "Controller" and lives in the grails-app/controllers directory. A controller can be created with the create-controller command:

grails create-controller org.bookstore.hello

or with your favourite IDE or text editor.

package org.bookstore

class HelloController {

    def world() {
        render "Hello World!"
    }
}

Each action in the controller is a method or a Closure and it has access to a number of implicit variables and methods.

Refer to the user guide topic on Controllers for more information.