json - 当我们将在运行时获取 jsonarray 的元素时，如何在 jsonobject 中打印 json 数组

Question

ArrayList al = new ArrayList();
//al[0] and al[1] are the json objects.
def json = new JsonBuilder()
json {
   type "rel12"
   total k
   xyz ""
   shows al[0],al[1]
   emails ""
}

println json.toPrettyString()

我不想像 al[0] 那样进行硬编码。人[1]。但我需要像这样的输出

{
    "type": "rel12",
    "total": 2,
    "xyz": "",
    "shows": [
        {
            "extension": "zip",
            "updateTime": 1477521104511
        },
        {
            "extension": "zip",
            "updateTime": 1477521104623
        }
    ],
    "emails": ""
}