Hello World With Grails

I don't like Java but there is something for real; JVM is stable. Since I don't like Java I thought I could give a try to Grails as it is built on Groovy which runs on JVM. This is a simple tutorial that I explain how to create a very simple Hello World application with Grails.

Creating the Application

In order to create a Grails application, "grails create-app" command is used. In our case, we will simply type in our terminal:

# cd into the directory where you want to create your grails applications.
cd ~/projects/grails
grails create-app hello

Creating the Controller

We will create the Grails controller for our application by typing:

grails create-controller Hello

This command will generate our controller class. Now all we have to do is just typing a text in our controller.

Open ../hello/grails-app/controllers/HelloController.groovy. Its content should be like the following.

class HelloController {

    def index = { }
}

What we are going to do is just rendering a text like this:

class HelloController {

    def index = {
        render "My First Grails Application"
    }
}

Starting the Server

The next step is starting the Grails server.

grails run-app

And point your browser to http://localhost:8080/hello/hello/index and get greeted! :)