在项目根路径下执行命令：安装illuminate/cookie包
1.composer require illuminate/cookie
2.找到同版本的laravel下的\vendor\laravel\framework\src\Illuminate\Cookie目录下的文件拷贝到
lumen的\vendor\illuminate\cookie目录下
3.将laravel下的\app\Http\Middleware\EncryptCookies.php拷贝到lumen同目录下
4.修改\bootstrap\app.php
添加中间件和服务提供者
$app->middleware([
App\Http\Middleware\EncryptCookies::class,
]);
$app->register(Illuminate\Cookie\CookieServiceProvider::class);