public function login(){
        $post = $this->request->param();
        $url="https://api.weixin.qq.com/sns/jscode2session?appid=".$post[\'appid\']."&secret=".$post[\'secret\']."&js_code=".$post[\'code\']."&grant_type=authorization_code";
        $html = file_get_contents($url);
        $arr = json_decode($html,true);
        if (false == DB::name(\'users\')->where([\'openid\' => $arr[\'openid\']])->find()) {
        // Db::query(\'SET nicheng utf8mb4\');$post[\'nickname\'] = $post[\'userinfo\'][\'nickName\'];
            $post[\'create_time\'] = time();
            $post[\'update_time\'] = time();
            $post[\'thumb\'] = $post[\'userinfo\'][\'avatarUrl\'];$post[\'sex\'] = \'保密\';$post[\'openid\'] = $arr[\'openid\'];$post[\'users_cate_id\'] = db("users_cate")->where("name","会员")->value("id");
            model(\'users\')->allowField(true)->save($post);
            $id = model(\'users\')->id;
            $data[\'qrcode\'] = $this->qrcode($id);
            db("users")->where("id",$id)->update($data);
        }else{
            DB::name(\'users\')->where(\'openid\',$arr[\'openid\'])->update([\'login_time\'=>time(),\'nickname\'=>$post[\'userinfo\'][\'nickName\'],\'thumb\'=>$post[\'userinfo\'][\'avatarUrl\']]);
        }
        $info = Db::name(\'users\')->where(\'openid\',$arr[\'openid\'])->find();

        $data = [
            \'token\'=>createToken($info[\'id\']),
            \'openid\' => $arr[\'openid\']
        ];
        return json_success(1,"登录成功",$data);
    }

     //获取用户经销商信息 及生成推广二维码
    public function qrcode($uid)
    {
        $info = db("users")->where(\'id\',$uid)->find();
        //拿到openid  查找用户表内是否有该用户  没有则拒绝生成二维码   有则查看是否已生成二维码   有生成则发送数据   没有则生成
        $dealer =  $info[\'qrcode\'];
        // $dealer =  1;
        if($dealer==NULL){
            if($dealer == \'\'){
                $appid = \'***************\';
                $secret = \'****************\';//AppSecret(小程序密钥)
                $url_access_token = \'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=\'.$appid.\'&secret=\'.$secret;
                $json_access_token = $this -> sendCmd($url_access_token,array());
                $arr_access_token = json_decode($json_access_token,true);
                $access_token = $arr_access_token[\'access_token\'];
                if(!empty($access_token)) {
                    $url = \'https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=\'.$access_token;
                    $data = \'{"path": "pages/my/my?uid=\'.$dealer.\'", "width": 430}\';
                    $result = $this -> sendCmd($url,$data);
                    $name = $uid.time();
                    file_put_contents(\'./qrcode/code-\'.$name.\'.jpg\',$result);
                    //存储二维码路径
                    $arr[\'qrcode\'] = \'/qrcode/code-\'.$name.\'.jpg\';
                    return $arr[\'qrcode\'];
                } else {
                    return \'\';
                }
            }else{
                return $info[\'qrcode\'];
            }
        }else{
            return $info[\'qrcode\'];
        }
    }

        /**
     * 发起请求
     * @param  string $url  请求地址
     * @param  string $data 请求数据包
     * @return   string      请求返回数据
     */
    function sendCmd($url,$data)
    {
        $curl = curl_init(); // 启动一个CURL会话
        curl_setopt($curl, CURLOPT_URL, $url); // 要访问的地址
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0); // 对认证证书来源的检测
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2); // 从证书中检查SSL加密算法是否存在
        curl_setopt($curl, CURLOPT_HTTPHEADER, array(\'Expect:\')); //解决数据包大不能提交
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1); // 使用自动跳转
        curl_setopt($curl, CURLOPT_AUTOREFERER, 1); // 自动设置Referer
        curl_setopt($curl, CURLOPT_POST, 1); // 发送一个常规的Post请求
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data); // Post提交的数据包
        curl_setopt($curl, CURLOPT_TIMEOUT, 30); // 设置超时限制防止死循
        curl_setopt($curl, CURLOPT_HEADER, 0); // 显示返回的Header区域内容
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); // 获取的信息以文件流的形式返回

        $tmpInfo = curl_exec($curl); // 执行操作
        if (curl_errno($curl)) {
            echo \'Errno\'.curl_error($curl);
        }
        curl_close($curl); // 关键CURL会话
        return $tmpInfo; // 返回数据
    }