我有一个代码如下

import groovy.yaml.YamlSlurper
def configYaml = '''\
---
application: "Sample App"
users:
- name: "mrhaki"
  likes:
  - Groovy
  - Clojure
  - Java
- name: "Hubert"
  likes:
  - Apples
  - Bananas
connections:
- "WS1"
- "WS2"
'''
// Parse the YAML.
def config = new YamlSlurper().parseText(configYaml)
def data1 = "users"
def date2 = "name"

println config.users.likes // printing correct 
println config.$data1.$data2 // getting error

我需要打印www.example.com中的元素users.name，并且需要从变量形式打印它。例如“println config.$data1.$data2”