代码如下:

//QQ登陆oAuth2.0 
ublic function public_qq_login2(){ 
$appid = pc_base::load_config('system', 'qq_appid'); 
$appkey = pc_base::load_config('system', 'qq_appkey'); 
$callback = pc_base::load_config('system', 'qq_callback'); 
pc_base::load_app_class('qqOAuth2','',0); 
$info = new qqOAuth2($appid,$appkey,$callback); 
$this->_session_start(); 
if (!isset($_GET['code'])){ 
$info->redirect_to_login(); 
}else{ 
$code = $_GET['code']; 
$_SESSION['openid'] = $info->get_openid($code);//调取QQ openid值 
if(!emptyempty($_SESSION['openid'])){ 
$r = $this->db->get_one(array('connectid'=>$_SESSION['openid'],'from'=>'qq')); 
if(!emptyempty($r)){ 
//QQ已存在于数据库，则直接转向登陆操作 
$password = $r['password']; 
$this->_init_phpsso(); 
$synloginstr = $this->client->ps_member_synlogin($r['phpssouid']); 
$userid = $r['userid']; 
$groupid = $r['groupid']; 
$username = $r['username']; 
$nickname = emptyempty($r['nickname']) ? $username : $r['nickname']; 
$this->db->update(array('lastip'=>ip(), 'lastdate'=>SYS_TIME, 'nickname'=>$me['name']), array('userid'=>$userid)); 
if(!$cookietime) $get_cookietime = param::get_cookie('cookietime'); 
$_cookietime = $cookietime ? intval($cookietime) : ($get_cookietime ? $get_cookietime : 0); 
$cookietime = $_cookietime ? TIME + $_cookietime : 0; 
$phpcms_auth_key = md5(pc_base::load_config('system', 'auth_key').$this->http_user_agent); 
$phpcms_auth = sys_auth($userid."\t".$password, 'ENCODE', $phpcms_auth_key); 
param::set_cookie('auth', $phpcms_auth, $cookietime); 
param::set_cookie('_userid', $userid, $cookietime); 
param::set_cookie('_username', $username, $cookietime); 
param::set_cookie('_groupid', $groupid, $cookietime); 
param::set_cookie('cookietime', $_cookietime, $cookietime); 
param::set_cookie('_nickname', $nickname, $cookietime); 
$forward = isset($_GET['forward']) && !emptyempty($_GET['forward']) ? $_GET['forward'] : 'index.php?m=member&c=index'; 
showmessage(L('login_success').$synloginstr, $forward); 
}else{ 
//未存在于数据库中，跳去完善资料页面。页面预置用户名（QQ返回是UTF8编码，如有需要进行转码） 
$user = $info->get_user_info(); 
$_SESSION['connectid'] = $_SESSION['openid']; 
$_SESSION['from'] = 'qq'; 
if(CHARSET != 'utf-8') {//转编码 
$connect_username = iconv('utf-8', CHARSET, $user['nickname']); 
} 
include template('member', 'connect'); 
} 
} 
} 
}