function getOpenid()
{
$openid = session('openid');
if ($openid == null) {
$this->code = I('get.code', '');
$this->state = I('get.state', '');
//如果存在code，证明是二次访问。
if ($this->code != '' && $this->code != null && $this->code != S('code')) {
S('code', $this->code, 300);
//缓存300秒
$user = get_user_token($this->code);
//获取有户token相关信息
if ($user['openid'] != null) {
session('openid', $user['openid']);
session('userToken', $user['access_token']);
session('openidTime', time());
$key = $user['openid'] . "Token";
S($key, $this['userToken'], $user['expires_in']);
} else {
var_dump($user);
throw_exception('获取用户信息失败');
}
} else {
goto_auth();
die;
}
} else {
return $openid;
}
}
function get_user_info($code)
{
return get_user_token($code);
}
