在学习任何东西之前，最重要的是培养兴趣，Groovy世界最耀眼的技术之一－－Grails相信大家早已耳闻，我将通过Grails实战系列文章向您展现Grails的迷人风采，使您感受到Grails的魅力，以至疯狂地爱上Grails，并坠入Groovy的爱河。学Groovy，Grails与学Java一样，在实战之前需要搭建开发环境，您可以在 Groovy轻松入门－－搭建Groovy开发环境 学习到如何搭建Groovy环境，之后我会讲一下如何搭建Grails环境，然后手把手地写个Demo程序告终，我还会抽空写篇“Groovy轻松入门－－Grails实战之进阶篇”
一，搭建Grails环境
0，下载Grails( http://dist.codehaus.org/grails/grails-bin-0.4.2.zip ，请留意朝花夕拾——Groovy & Grails中的“最新版本”提示)并解压到自己指定位置（我的位置是D:\D\MY_DEV\grails）
1，设置环境变量GRAILS_HOME（注意大写），过程与“设置环境变量GROOVY_HOME”相似。
2，将%GRAILS_HOME%\bin添加到环境变量path中，过程与“将GROOVY_HOME目录下的bin追加到环境变量path中”相似。
（如果只想进行Grails开发，可以不设GROOVY_HOME）
二，创建Grails Demo程序
0，打开“命令行”，选择当前目录（我的为D:\Temp\grails_apps），在黑底白字的窗口中输入“grails create-app demo”，不包括双引号“”，在您的屏幕中可以看到类似下面的输出结果：
D:\Temp\grails_apps>grails create-app demo
Welcome to Grails 0.4.2 - http://grails.org/
Licensed under Apache Standard License 2.0
Grails home is set to: D:\D\MY_DEV\grails
Base Directory: D:\Temp\grails_apps
Environment set to production
Note: No plugin scripts found
Running script D:\D\MY_DEV\grails\scripts\CreateApp.groovy
[mkdir] Created dir: D:\Temp\grails_apps\demo\src
[mkdir] Created dir: D:\Temp\grails_apps\demo\src\java
[mkdir] Created dir: D:\Temp\grails_apps\demo\src\groovy
[mkdir] Created dir: D:\Temp\grails_apps\demo\src\test
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app\controllers
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app\services
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app\domain
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app\taglib
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app\utils
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app\views
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app\views\layouts
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app\i18n
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-app\conf
[mkdir] Created dir: D:\Temp\grails_apps\demo\grails-tests
[mkdir] Created dir: D:\Temp\grails_apps\demo\scripts
[mkdir] Created dir: D:\Temp\grails_apps\demo\web-app
[mkdir] Created dir: D:\Temp\grails_apps\demo\web-app\js
[mkdir] Created dir: D:\Temp\grails_apps\demo\web-app\css
[mkdir] Created dir: D:\Temp\grails_apps\demo\web-app\images
[mkdir] Created dir: D:\Temp\grails_apps\demo\web-app\WEB-INF\classes
[mkdir] Created dir: D:\Temp\grails_apps\demo\web-app\META-INF
[mkdir] Created dir: D:\Temp\grails_apps\demo\lib
[mkdir] Created dir: D:\Temp\grails_apps\demo\spring
[mkdir] Created dir: D:\Temp\grails_apps\demo\hibernate
[copy] Copying 2 files to D:\Temp\grails_apps\demo
[copy] Copying 2 files to D:\Temp\grails_apps\demo\web-app\WEB-INF
[copy] Copying 1 file to D:\Temp\grails_apps\demo\web-app\WEB-INF
[copy] Copying 1 file to D:\Temp\grails_apps\demo\web-app\WEB-INF
[copy] Copying 5 files to D:\Temp\grails_apps\demo\web-app\WEB-INF\tld
[copy] Copying 119 files to D:\Temp\grails_apps\demo\web-app
[copy] Copying 1 file to D:\Temp\grails_apps\demo\grails-app\conf
[copy] Copying 1 file to D:\Temp\grails_apps\demo\grails-app\conf
[copy] Copying 1 file to D:\Temp\grails_apps\demo\grails-app\conf
[copy] Copying 7 files to D:\Temp\grails_apps\demo\grails-app
[mkdir] Created dir: D:\Temp\grails_apps\demo\plugins\core\grails-app\taglib
[mkdir] Created dir: D:\Temp\grails_apps\demo\plugins\core\grails-app\utils
[copy] Copying 7 files to D:\Temp\grails_apps\demo\plugins\core\grails-app taglib
[copy] Copying 3 files to D:\Temp\grails_apps\demo\plugins\core\grails-app utils
[copy] Copying 1 file to D:\Temp\grails_apps\demo\spring
[copy] Copying 1 file to D:\Temp\grails_apps\demo
[copy] Copying 1 file to D:\Temp\grails_apps\demo
[copy] Copying 1 file to D:\Temp\grails_apps\demo
Created Grails Application at D:\Temp\grails_apps/demo
D:\Temp\grails_apps>
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