用GroovyShell解析类 [英] Parsing classes with GroovyShell

问题描述

我有一个Groovy脚本，需要在外部groovy脚本中的类中运行方法. 我知道如何在外部Groovy脚本中运行方法:

I have a groovy script that need to run a method inside a class inside an external groovy script. I know how to run a method within an external groovy script:

new GroovyShell().parse( new File( 'foo.groovy' ) ).with {
    method()
  }

但是，如果方法在类内部怎么办?我试过了，但是给了我一个错误.

But what if the method is inside a class? I tried this but it gave me an error.

new GroovyShell().parse( new File( 'foo.groovy' ) ).with {
    theclass.method()
  }

推荐答案

您可以使用Java反射来创建位于另一个脚本中的Class的新实例:

You can use Java reflection to create new instance of a Class that is located in another script:

File sourceFile = new File("D:\\anoutherScript.groovy")
//here you have to update your classloader with external script
getClass().getClassLoader().addURL(sourceFile.toURI().toURL())
GroovyObject obj = Class.forName("ClassInAnotherObject").newInstance()
obj.doSth()

外部文件中的脚本如下:

Script in your external file would be like that:

class ClassInAnotherObject{
    def doSth(){
    }
}

，但是脚本文件中可能会有更多的类，还有更多的指令和方法调用.就像普通的常规脚本一样.

but there could be more classes in script file, also some more instructions and method call. Just like normal groovy script.

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