public function __construct()
{
parent::__construct();
$jsapi_ticket = $this->redis->get('jsapi_ticket');
//var_dump($jsapi_ticket);
if (empty($jsapi_ticket)) {
$ret_json = $this->get_jsapi_ticket();
$ret_array = json_decode($ret_json, true);
if (isset($ret_array['ticket'])) {
$jsapi_ticket = $ret_array['ticket'];
$this->redis->setex('jsapi_ticket', $ret_array['expires_in'] - 60, $jsapi_ticket);
}
}
$this->jsapi_ticket = $jsapi_ticket;
}