我如何枚举groovy脚本中的所有已定义的变量 [英] How do I enumerate all the defined variables in a groovy script

问题描述

我有一个groovy脚本，在运行时上下文中的变量数量未知，我如何找到它们并打印出每个脚本的名称和值？

解决方案

好的，如果你使用的是简单的脚本（你不使用def关键字），你定义的变量将被存储在绑定中，你可以像这：

  foo =abc
 bar =def
 
 if true）{
 baz =ghi
 this.binding.variables.each {k，v  - > println$ k = $ v} 
} 
  

打印：

  foo = abc 
 baz = ghi 
 args = {} 
 bar = def 
  

我不知道枚举通过用def关键字定义的变量的简单方法，但我会感兴趣地观看这个问题，看看别人是否知道如何。


I have a groovy script with an unknown number of variables in context at runtime, how do I find them all and print the name and value of each?

解决方案

Well, if you're using a simple script (where you don't use the "def" keyword), the variables you define will be stored in the binding and you can get at them like this:

foo = "abc"
bar = "def"

if (true) {
    baz = "ghi"
    this.binding.variables.each {k,v -> println "$k = $v"}
}

Prints:

    foo = abc 
    baz = ghi 
    args = {} 
    bar = def

I'm not aware of an easy way to enumerate through the variables defined with the "def" keyword, but I'll be watching this question with interest to see if someone else knows how.

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