有没有办法得到一个json的所有键和相关值？我不知道输出的字段，那我就不能用json提取器了。我找到了这段代码，但是它只返回键：

import groovy.json.JsonSlurper

def traverse
traverse = { tree, keys = [], prefix = '' ->
    switch (tree) {
        case Map:
            tree.each { k, v -> 
                def name = prefix ? "${prefix}.${k}" : k
                keys << name   
                traverse(v, keys, name)
            }
            return keys
        case Collection:
            tree.eachWithIndex { e, i -> traverse(e, keys, "${prefix}[$i]") }
            return keys
        default :
            return keys
    }
}

def content = new JsonSlurper().parseText(prev.getResponseDataAsString())

traverse(content).each { println it }

输出：

....
devices[24].creationDate
devices[24].updateDate
devices[24].attributes
devices[24].attributes.name
devices[24].attributes.location
devices[24].attributes.address
devices[24].attributes.latitude
devices[24].attributes.longitude
devices[24].attributes.brand
devices[25].deviceId
devices[25].deviceStatus
devices[25].deviceType
devices[25].creationDate
devices[25].updateDate
devices[25].attributes
....

你能帮我恢复键和值吗？
先谢了