public MessageResult sendPush(string payloadString)
{
Preconditions.checkArgument(!string.IsNullOrEmpty(payloadString), "payloadString should not be empty");
String url = HOST_NAME_SSL;
url += PUSH_PATH;
ResponseWrapper result = sendPost(url, Authorization(), payloadString);
MessageResult messResult = new MessageResult();
messResult.ResponseResult = result;
JpushSuccess jpushSuccess = JsonConvert.DeserializeObject<JpushSuccess>(result.responseContent);
messResult.sendno = int.Parse(jpushSuccess.sendno);
messResult.msg_id = int.Parse(jpushSuccess.msg_id);
return messResult;
}