Curator参数说明1.connectString zookeeper服务器的连接2.retryPolicy 重试策略，默认有四个ExponentialBackoffRetry、RetryNtime、Retryonetime、RetryUtilElapsed3.sessionTimeoutMs 回话超时时间，默认60 000ms4.connectionTimeoutMs 连接创建

//后台Map map = new HashMap();map.put("result", 1);map.put("count", count);JSONObject json = JSONObject.fromObject(map);response.getWriter().print(json.toString());////前台用net.sf.