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Editor to share with you how to use the interface to call the Groovy method in Java, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's learn about it!

1. Define the Java interface to include the Groovy method that needs to be called in Java.

Public interface IFoo {public Object run (Object foo);}

2. Create a Groovy class to implement the interface

Class Foo implements IFoo {

Public Object run (Object foo) {

Println 'Hello Worldwide'

X = 123

Foo * 10}}

3. Dynamically load the Groovy class, create an interface instance, and call the methods defined in the interface.

Import groovy.lang.GroovyClassLoader

Import java.io.File

Public class InvokeGroovy {

Public static void main (String [] args) {

ClassLoader cl = new InvokeGroovy (). GetClass (). GetClassLoader ()

GroovyClassLoader groovyCl = new GroovyClassLoader (cl)

Try {

Class groovyClass = groovyCl.parseClass (new File ("src/Foo.groovy"))

IFoo foo = (IFoo) groovyClass.newInstance ()

System.out.println (foo.run (new Integer (2)

} catch (Exception e) {

E.printStackTrace ();}

}

}

These are all the contents of the article "how to use interfaces to call Groovy methods in Java". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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