CakePHP 4.0.x

$productsTable = \Cake\ORM\TableRegistry::getTableLocator()->get('Products');

来自CakePHP 4.1

Cake\ORM\TableRegistry已弃用。使用Cake\ORM\ORM\LocatorAwareTrait：：getTableTrait（）或Cake\Datasheet\FactoryTrait：：get（'Table'）
阅读https://book.cakephp.org/4/en/appendices/4-1-migration-guide.html#orm

并尝试使用FactoryList：

use Cake\Datasource\FactoryLocator;

$productsTable = FactoryLocator::get('Table')->get('Products');

//$productsTable->find()...

或在组件类中注入trait

class MyComponent extends Component{

    use Cake\ORM\Locator\LocatorAwareTrait;

    public function foo()
    {
         $ProductsTable = $this->getTableLocator()->get('Products');
    }

}

Salines answere在Cakephp 4.3.x中仍然有效
我测试了它，它在我的组件工作！

class MyComponent extends Component{

    use Cake\Datasource\FactoryLocator;

    public function foo()
    {  
        $ProductsTable = FactoryLocator::get('Table')->get('ProductsTable ');
    }

}