Thinkphp8 通过中间件 和 属性 简单实现AOP

转载请著名来源,侵权必究

//属性接口
declare(strict_types=1);

namespace app\common\attribute;


interface AttributeHandler
{
    public function handler(mixed $handler);
}

//不需要登陆属性
declare(strict_types=1);

namespace app\common\attribute;


/**
 * 跳过登陆验证
 */
#[\Attribute(\Attribute::TARGET_METHOD)]
class NoLogin implements AttributeHandler
{
    public function __construct(){

    }

    public function handler(mixed $handler)
    {
        // TODO: Implement handler() method.
        //return Response::create('页面未找到 - NoLogin', 'html', 404);
    }
}

//权限验证属性
declare(strict_types=1);

namespace app\shop\attribute;


use app\common\attribute\AttributeHandler;

/**
 * 权限验证
 */
#[\Attribute(\Attribute::TARGET_METHOD)]
class CheckPermission implements AttributeHandler
{
    public function __construct(private string $permission){
    }

    public function handler(mixed $handler)
    {
        // TODO: Implement handler() method.
        //return Response::create('页面未找到 - CheckPermission', 'html', 404);
    }
}

注意这里是要加到 控制器中间件

//属性中间件 (控制器中间件)
declare(strict_types=1);

namespace app\common\middleware;


use app\common\attribute\AttributeHandler;
use Closure;
use think\App;
use think\Request;
use think\Response;
use think\Session;

/**
 * 属性中间件
 */
class AttributeMiddleware
{
    public function __construct(protected App $app, protected Session $session)
    {
    }

    public function handle(Request $request, Closure $next): Response
    {
        /** @var Response $response */
        $response = null;
        $reflect = new \ReflectionClass('app\\'.app('http')->getName().'\controller\\'.$request->controller());
        $attributes = $reflect->getMethod($request->action())->getAttributes();
        foreach($attributes as $attribute){
            /**
             * @var AttributeHandler $instance
             * **/
            $instance = $attribute->newInstance();
            $response = $instance->handler($this);
            if($response instanceof Response){
                return $response;
            }
        }
        $request->attributes = $attributes;
        $response = $next($request);
        return $response;
    }
}

//测试类
<?php

namespace app\shop\controller;

use app\common\attribute\NoLogin;
use app\shop\attribute\CheckPermission;
use app\shop\BaseController;

class Index extends BaseController
{
    #[CheckPermission(permission:"Foo")]
    public function index()
    {
        return '<style>*{ padding: 0; margin: 0; }</style><iframe src="https://www.thinkphp.cn/welcome?version=' . \think\facade\App::version() . '" width="100%" height="100%" frameborder="0" scrolling="auto"></iframe>';
    }

    #[NoLogin]
    public function hello($name = 'ThinkPHP8')
    {
        return 'hello,' . $name;
    }
}