1. JsonString转为Map
String jsoNStr = "{\n" +
"\t\"TestArray\": [\"1\", \"2\", \"3\"]\n" +
"}";
Map map = JSON.parseObject(jsoNStr,Map.class);
2.Object转为JsonArray(得保证obj是个Array数组，否则报错)
Object obj = map.get("TestArray");
JSONArray myJsonArray = JSONArray.fromObject(obj);
3.JsonArray转为List
List<String> arr = (List) myJsonArray;
4.List转为String[]
String[] arr2 = arr.toArray(new String[arr.size()]);
Java 类型转换String，List,Map,Array
原文：https://www.cnblogs.com/myyBlog/p/10265721.html