Running groovy script in Java code

Question

Hello I am looking to run a groovy script inside Java code but I didn't find many tutorial about that.

I have a String that contain a groovy script :

private String processingCode = "def hello_world() { println \"Hello, world!\" }";

I have also downloaded the Groovy SDK.

Which groovy jar should I include in java project ? And how to execute the script in Java ?

Opal · Accepted Answer · 2016-01-15 15:25:23Z

10

What you need is a groovy-all dependency and GroovyShell.

Main class will be:

package lol;

import groovy.lang.GroovyShell;

public class Lol {

  public static void main(String[] args) {
    String processingCode = "def hello_world() { println 'Hello, world!' }; hello_world();";
    GroovyShell shell = new GroovyShell();
    shell.evaluate(processingCode);
  }
}

Here is a demo.

Use gradle run to run it.

answered Jan 15, 2016 at 15:25

Opal

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4 Comments

Steeven_b Over a year ago

There is no groovy-all in my groovy-sdk/lib directory, should I include the whole sdk ?

Opal Over a year ago

I guess all you need can be found under $GROOVY_HOME/lib.

Nicholas Over a year ago

My install has groovy-all.jar in $GROOVY_HOME/embedded

Steeven_b Over a year ago

I've added the groovy-"version number".jar that is in my sdk and it worked. Thank you !

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