原文链接：https://blog.csdn.net/weixin_42365088/article/details/99761931
1.List转JSONArray
List<T> list = new ArrayList<T>(); JSONArray array= JSONArray.parseArray(JSON.toJSONString(list))；
2.JSONArray转List
JSONArray array = new JSONArray(); List<EventColAttr> list = JSONObject.parseArray(array.toJSONString(), EventColAttr.class);
3.String转JSONArray
String st = "[{name:Tim,age:25,sex:male},{name:Tom,age:28,sex:male},{name:Lily,age:15,sex:female}]";
JSONArray tableData = JSONArray.parseArray(st);