public static String toJSONString(Object obj) {
        if (isJSONArray(obj.getClass())) {
            return new com.github.ltsopensource.json.JSONArray(obj).toString();
        }
        return new com.github.ltsopensource.json.JSONObject(obj).toString();
    }
@author Robert HG (254963746@qq.com) on 12/28/15.
lts-core/src/main/java/com/github/ltsopensource/json/JSONObject.java