如何使用反射调用 Scala 对象方法? [英] How do I call a Scala Object method using reflection?

问题描述

比如说，我有以下几点:

say, I have the following:

trait SomeTrait {
  def someMethod: String;
}

object SomeObject extends SomeTrait {
  def someMethod = "something";
}

我想使用反射调用someMethod"，因为我将对象名称作为字符串.类似的东西:

I would like to call "someMethod" using reflection as I have the object name as a String. Something like:

val objectName = "SomeObject"  
val someTrait:SomeTrait = ???.asInstanceOf[SomeTrait]  
someTrait.someMethod

或类似的东西.

谢谢

推荐答案

def companion[T](name : String)(implicit man: Manifest[T]) : T = 
    Class.forName(name + "$").getField("MODULE$").get(man.erasure).asInstanceOf[T]

val result = companion[SomeTrait]("SomeObject").someMethod

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