微服务架构下ThinkPHP的应用场景

// 示例：使用ThinkPHP作为API网关
namespace app\api\controller;

use think\facade\Request;
use think\facade\Log;

class Gateway
{
    public function route()
    {
        $request = Request::instance();
        $path = $request->path();
        $method = $request->method();

        Log::info("Received request: $method $path");

        // 假设我们有三个微服务：user, order, payment
        switch ($path) {
            case 'user':
                // 转发到用户服务
                return $this->forwardToService('user', $method, $request->param());
            case 'order':
                // 转发到订单服务
                return $this->forwardToService('order', $method, $request->param());
            case 'payment':
                // 转发到支付服务
                return $this->forwardToService('payment', $method, $request->param());
            default:
                return json(['error' => 'Invalid endpoint'], 404);
        }
    }

    private function forwardToService($service, $method, $params)
    {
        // 这里可以使用HTTP客户端（如Guzzle）来调用后端微服务
        // 代码省略...
    }
}

// 示例：使用ThinkPHP开发微服务管理后台
namespace app\admin\controller;

use think\facade\View;
use think\facade\Db;

class Dashboard
{
    public function index()
    {
        $services = Db::table('services')->select();
        $metrics = Db::table('metrics')->select();

        return View::fetch('dashboard', [
            'services' => $services,
            'metrics' => $metrics
        ]);
    }
}

// 示例：使用ThinkPHP构建日志服务
namespace app\log\controller;

use think\facade\Request;
use think\facade\Log;

class Logger
{
    public function log()
    {
        $data = Request::param();
        $level = $data['level'] ?? 'info';
        $message = $data['message'] ?? '';

        Log::$level($message);

        return json(['status' => 'success']);
    }
}