//JSON字符串转对象

import groovy.json.JsonSlurper; 
def jsonSlurper = new JsonSlurper();//创建 JsonSlurper 对象并解析文本 

Map map = new HashMap();
def wtf_list_str="{\"a\":1}";
def wtf_list = jsonSlurper.parseText(wtf_list_str); //JSON字符串转对象


map

import groovy.json.JsonOutput


def list = [new Person(name: 'John', age: 25),
			new Person(name: 'Major', age: 26)];

def json = JsonOutput.toJson(list);//JSON对象转字符串

println JsonOutput.prettyPrint(json)