Groovy in Java EE with Maven (Struts2.Groovy in Java EE with Maven)

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It is quite easy to add Groovy support. Once the support is in place you can use Groovy as you would use regular Java. As a matter of fact to test out Groovy we will create a Struts2 action with it!

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Following assumes we have set up a basic struts2 application using Maven:

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1) In Netbeans, expand the "Project Files" and open pom.xml.

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2a) Locate the maven compiler plugin, which in my poms typically looks like the following:

<groupId>org.apache.maven.plugins</groupId>

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<artifactId>maven-compiler-plugin</artifactId>

<endorseddirs>${endorsed.dir}</endorseddirs>

</compilerArguments>

</configuration>

</plugin>

2b) Edit this pom.xml such that the above looks like the following:

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<groupId>org.apache.maven.plugins</groupId>

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<artifactId>maven-compiler-plugin</artifactId>

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**~ <compilerId>groovy-eclipse-compiler</compilerId>**

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**~ <verbose>true</verbose>**

</configuration>

**~ <dependencies>**

**~ <dependency>**

**~ <groupId>org.codehaus.groovy</groupId>**

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**~ <artifactId>groovy-eclipse-compiler</artifactId>**

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**~ <version>2.6.0-01</version>**

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**~ </dependency>**

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**~ </dependencies>**

</plugin>

3) Add the following dependancy

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<groupId>org.codehaus.groovy</groupId>

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<artifactId>groovy-all</artifactId>

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<scope>provided</scope>

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</dependency>

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4) Download a copy of groovy-all-1.8.4.jar and copy it into the glassfish lib folder (partial path on my system is .../glassfish-3.1.2/glassfish/lib/groovy-all-1.8.4.jar).

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With that bit of initial configuration out of the way we can now use Groovy quite seemlessly in our project.

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== Create a Struts2 action (will use the struts2 conventions plugin to avoid needless configuration) ==

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(% style="font-weight: bold;" %)In Netbeans 7.1, create a new package under source packages called com.kenmcwilliams.action.groovy.

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(% style="font-weight: bold;" %)Right click that folder and create a new groovy file (New->Other->Category:Groovy->Groovy Class).(% style="font-weight: normal;" %) If the following options does not exist you will need at add Groovy **(Tools(menu)->Plugins->Availible Plugins(tab)->select "Groovy and Grails")**(%%).

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//package com.kenmcwilliams.action.groovy//

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//import com.opensymphony.xwork2.ActionSupport;//

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//import com.opensymphony.xwork2.Action;//

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\\// class Gest extends ActionSupport{//

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// String greeting = "Hello from Groovy!";//

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