json转换为map

// json转换为map
    public static Map parserToMap(String s) {
        Map map = new HashMap();
        JSONObject json = JSONObject.fromObject(s);
        Iterator keys = json.keys();
        while (keys.hasNext()) {
            String key = (String) keys.next();
            String value = json.get(key).toString();
            if (value.startsWith("{") && value.endsWith("}")) {
                map.put(key, parserToMap(value));
            } else {
                map.put(key, value);
            }
        }
        return map;
    }