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Grails是個(gè)典型的遵照MVC模式開(kāi)發(fā)的框架，至少包含了以下3個(gè)部分：控制器(Controllers)、領(lǐng)域(Domain)對(duì)象(模型)、視圖(Views)。既然環(huán)境配置好了，Hello項(xiàng)目的基本構(gòu)架也通過(guò)grails create-app hello創(chuàng)建好了，下面進(jìn)入第一個(gè)grails例子。

進(jìn)入hello項(xiàng)目文件夾(>cd hello)，輸入 grails create-controller hello

1

E:\Groovy\projects\hello>grails create-controller hello
2

3

Welcome to Grails 1.0.4 - http://grails.org/
4

Licensed under Apache Standard License 2.0
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Grails home is set to: E:\Groovy\grails-1.0.4
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Base Directory: E:\Groovy\projects\hello
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Note: No plugin scripts found
9

Running script E:\Groovy\grails-1.0.4\scripts\CreateController.groovy
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Environment set to development
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[copy] Copying 1 file to E:\Groovy\projects\hello\grails-app\controllers
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Created Controller for Hello
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[mkdir] Created dir: E:\Groovy\projects\hello\grails-app\views\hello
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[copy] Copying 1 file to E:\Groovy\projects\hello\test\integration
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Created ControllerTests for Hello

這樣，在grails-app/controller目錄下自動(dòng)生成HelloController.groovy文件，同時(shí)grails-test下生成HelloControllerTest.groovy測(cè)試文件。
我們編輯HelloController控制器，在index{}中輸出Hello World.其中，index是系統(tǒng)默認(rèn)的操作，相當(dāng)于JSP中的index.jsp。

1 class HelloController {
2 def index = {render 'Hello world!' }
3 }

運(yùn)行項(xiàng)目 grails run-app

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E:\Groovy\projects\hello>grails run-app
2

3

Welcome to Grails 1.0.4 - http://grails.org/
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Licensed under Apache Standard License 2.0
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Grails home is set to: E:\Groovy\grails-1.0.4
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Base Directory: E:\Groovy\projects\hello
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Note: No plugin scripts found
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Running script E:\Groovy\grails-1.0.4\scripts\RunApp.groovy
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Environment set to development
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[groovyc] Compiling 7 source files to C:\Documents and Settings\Administrator\.grails\1.0.4\projects\hello\classes
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[native2ascii] Converting 11 files from E:\Groovy\projects\hello\grails-app\i18n to C:\Documents and Settings\Administrator\.grails\1.0.4\projects\hello\resources\grails-app\i18n
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[copy] Copying 1 file to C:\Documents and Settings\Administrator\.grails\1.0.4\projects\hello\classes
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[copy] Copying 1 file to C:\Documents and Settings\Administrator\.grails\1.0.4\projects\hello\resources
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[copy] Copying 1 file to C:\Documents and Settings\Administrator\.grails\1.0.4\projects\hello
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Running Grails application..
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2009-03-12 20:00:01.183::INFO: Logging to STDERR via org.mortbay.log.StdErrLog
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2009-03-12 20:00:01.402::INFO: jetty-6.1.12
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2009-03-12 20:00:02.652::INFO: No Transaction manager found - if your webapp requires one, please configure one.
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2009-03-12 20:00:02.308:/hello:INFO: Set web app root system property: 'hello-development-0.1' = [E:\Groovy\projects\hello\web-app]
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2009-03-12 20:00:02.308:/hello:INFO: Initializing log4j from [file:C:\Documents and Settings\Administrator/.grails/1.0.4/projects/hello/resources/log4j.properties]
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2009-03-12 20:00:02.340:/hello:INFO: Initializing Spring root WebApplicationContext
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[0] spring.GrailsWebApplicationContext Refreshing org.codehaus.groovy.grails.commons.spring.GrailsWebApplicationContext@396c7: display name [org.codehaus.groovy.grails.commons.spring.GrailsWebApplicationContext@396c7]; startup date [Thu Mar 12 20:00:05 CST 2009]; parent: org.springframework.web.context.support.XmlWebApplicationContext@1e7c609
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[0] spring.GrailsWebApplicationContext Bean factory for application context [org.codehaus.groovy.grails.commons.spring.GrailsWebApplicationContext@396c7]: org.springframework.beans.factory.support.DefaultListableBeanFactory@c4c05
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2009-03-12 20:00:08.179:/hello:INFO: Initializing Spring FrameworkServlet 'grails'
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2009-03-12 20:00:09.445::INFO: Started SelectChannelConnector@0.0.0.0:8080
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Server running. Browse to http://localhost:8080/hello

打開(kāi)瀏覽器，輸入http://localhost:8080/hello/hello/index 查看運(yùn)行結(jié)果

地址欄中，第一個(gè)hello為項(xiàng)目名，第二hello為控制器名，index為操作名。

最基本的一個(gè)入門(mén)程序?qū)懲炅耍耸止ぞ帉?xiě)外，我們還可以使用NetBeans作為開(kāi)發(fā)IDE，大大簡(jiǎn)化開(kāi)發(fā)流程。至少不用記那么多命令了哈！

posted on 2009-03-12 18:12 Rique 閱讀(1128) 評(píng)論(0) 編輯收藏所屬分類(lèi): Groovy涉獵

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相關(guān)文章: Grails入門(mén)之二：一切從Hello World開(kāi)始 Grails入門(mén)之一：環(huán)境配置及簡(jiǎn)單命令介紹

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