list转json

list转json

public static void main(String[] args) {
    List<Map<String,Object>> list = new ArrayList<>();
    Map<String,Object> map = new HashMap<>();
    map.put("0","a");
    map.put("1","b");
    map.put("2","c");
    list.add(0,map);
    System.out.println("list数据："+list);
    String str = JSON.toJSONString(list);
    System.out.println("转换JSON数据："+str);
}