android接收服务器端rest发送json消息问题

{"to":"140678489983418860","type":"groupchat","msg":"xiaoxi","ext":{"msg":"xiaoxi","msgid":"90BEE52A87FB043B73BA334BFED14247","yonghuid":"55d6576abbfd4b4aaa6113e1e0124b4d","shuohuarenfrom":{"yonghuid":"55d6576abbfd4b4aaa6113e1e0124b4d","yonghunicheng":"包长青的小号","yonghubiaozhu":"0","yonghutouxiang":"templates/wdcs/image/icon/0007.jpg","zhanghaoleixing":"6"},"shuohuarentoperson":null,"topersonnicheng":null,"shuohuarentogrop":"140678489983418860","shuohuashijian":"2016-03-23 09:30:06","xiaoxileibie":0,"shuohuaneirong":"ddd","yishenhe":1,"yishanchu":0,"yihuifu":0,"yizhiding":0}}

    EMMessageListener messageListener = new EMMessageListener() {

        @Override

        public void onMessageReceived(List list) {

            String jsonResponse = JSON.toJSONString(list);

            Log.d("---------新消息", jsonResponse);

            for (EMMessage message : list) {

                // 群组消息

                if (message.getChatType() == EMMessage.ChatType.GroupChat) {

                    //收到消息

                    try {

                        Log.d("---------", "说话内容" + message.getStringAttribute("shuohuaneirong"));

                        Log.d("---------", "用户ID" + message.getStringAttribute("yonghuid"));

                        Log.d("---------", "说话人来自" + message.getJSONObjectAttribute("shuohuarenfrom")); // 获取不到

//                        Log.d("---------", "说话人来自" + message.getStringAttribute("shuohuarenfrom")); // 获取不到

//                        message.get... // 获取不到

                    } catch (HyphenateException e) {

                        e.printStackTrace();

                    }

                }

            }

        }