Java Reference
In-Depth Information
Installing Grails
Before installing Grails, you will need as a minimum a Java Development Kit (JDK) version 1.6 or
newer. Download the appropriate JDK for your operating system, run the installer, and then set up an
environment variable called JAVA_HOME pointing to the location of this installation.
Note
A JDK is required in your Grails development environment. A JRE is not sufficient.
The first step to getting up and running with Grails is to install the distribution. To do so, follow these
steps:
Download a binary distribution of Grails from http://grails.org/ and extract
the resulting ZIP file to a location of your choice.
1.
Set the GRAILS_HOME environment variable to the location where you extracted
the ZIP file.
2.
On Unix/Linux-based systems, this is typically a matter of adding something
like the following to your profile: export GRAILS_HOME=/path/to/grails .
On Windows, this is typically a matter of setting an environment variable
under My Computer/Advanced/Environment Variables .
Then add the bin directory to your PATH variable.
On Unix/Linux-based systems, this can be done by adding
3.
export PATH="$PATH:$GRAILS_HOME/bin" to your profile.
On Windows, this is done by modifying the
PATH environment variable
under My Computer/Advanced/Environment Variables .
If Grails is working correctly, you should now be able to type grails -version in the terminal window
and see output similar to this:
E:\>grails -version
Grails version: 2.2.4
Hello World Application
In this section, you will create your first Grails web application. To create a Grails application, you
need to familiarize yourself with the usage of the grails command:
grails [command name]
Run create-app to create an application.
grails create-app helloworld
 
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