The combination of Java and groovy scripting

Java Execution Groovy Shell script
<dependency> <groupId>org.codehaus.groovy</groupId> <artifactid>groovy-all</ Artifactid> <version>2.4.0-beta-1</version></dependency>
Add Groovy Jar Package Support ====================================================

Package Groovy;import Groovy.lang.binding;import Groovy.lang.groovyshell;public class Java2groovyshell {public static  void Main (string[] args) {//TODO auto-generated method Stub binding binding = new binding ();  Binding.setvariable ("Var", 5);  Groovyshell GS = new Groovyshell (binding); Object value = gs.evaluate ("println ' Hello Groovy! ';  Abc=123;return var*10 ");//execute Groovyshell Script System.out.println (Value.equals (50)); System.out.println (Binding.getvariable ("abc"). Equals (123)); }}

==================================================== script that runs groovy directly

++++++++++++++++++++++++++++++++++++++++++++++++++++java run Groovy script in Java to load a groovy script file, and then invoke the method in the script

Package Groovy;import Groovy.lang.groovyclassloader;import Groovy.lang.groovyobject;import java.io.File;public  Class Java2groovydynamic {public static void main (string[] args) throws Exception {//TODO auto-generated method stub  ClassLoader parent = Classloader.getsystemclassloader ();  Groovyclassloader loader = new Groovyclassloader (parent);  Class Groovyclass = Loader.parseclass (New File ("C:\\normandy_workspace\\groovy\\src\\groovy\\groovydemo.groovy"));  Groovyobject Groovyobject = (groovyobject) groovyclass.newinstance ();  object[] param = {123,321};  int res = (int) groovyobject.invokemethod ("Add", param);       System.out.println ("res=" +res); }}

Groovy Script

Package Groovyclass Groovydemo {static int add (int x,int y) {return x+y;}  Static main (args) {int z = Add (123,321); println ("x+y=" +z); }}

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The Groovy scripting engine initializes the groovy scripting engine by setting Classpath to run any groovy script file under that path.

Package Groovy;import Groovy.lang.binding;import Groovy.util.groovyscriptengine;public class Java2GroovyEngine { public static void Main (string[] args) throws Exception {//TODO auto-generated method stub String Path = "C:\\normandy  _workspace\\groovy\\src\\groovy\\ ";  Groovyscriptengine GSE = new Groovyscriptengine (path);  Binding binding = new binding ();  Binding.setvariable ("Input", "Groovy");  Gse.run ("Test.groovy", binding);   System.out.println (binding.getvariable ("output")); }}

Groovy Script

Package Groovy;output = "Hello ${input}";

The combination of Java and groovy scripting