Symfony error: The class xxx was not found in the chain configured namespaces App\Entity

Question

我用一个实体 Company 和一个控制器 CompanyController 创建了一个新的 symfony 项目。我想从数据库中获取结果，但我一直收到此错误：The class 'App\Repository\CompanyRepository' was not found in the chain configured namespaces App\Entity，我不知道为什么。

我在互联网上进行了搜索，但我只阅读了在命名空间不是 App\Entity 时解决错误的答案。请帮助我。

创建新的symfony 项目时，所有文件都存储在src 文件夹中。我没有更改任何配置文件，所以每个配置都是默认的。

这是我的实体：

<?php

namespace App\Entity;

use App\Repository\CompanyRepository;
use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity(repositoryClass=CompanyRepository::class)
 */
class Company

之后只有 getter 和 setter。

这是我的控制器：

<?php

namespace App\Controller;

use App\Repository\CompanyRepository;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

#[Route('/api/company', name: 'company')]
class CompanyController extends AbstractController
{
    #[Route(name: 'company.get', methods: ["GET"])]
    public function getCompanies(): Response
    {
        $entityManager = $this->getDoctrine()->getManager();
        $repository = $entityManager->getRepository(CompanyRepository::class);

        $companies = $repository->findAll();
        $data = [];

        foreach ($companies as $company) {
            $data[] = $company->toArray();
        }

        return $this->json([
            'data' => $data
        ]);
    }
}

这是我的公司资料库：

<?php

namespace App\Repository;

use App\Entity\Company;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
use Doctrine\Persistence\ManagerRegistry;

/**
 * @method Company|null find($id, $lockMode = null, $lockVersion = null)
 * @method Company|null findOneBy(array $criteria, array $orderBy = null)
 * @method Company[]    findAll()
 * @method Company[]    findBy(array $criteria, array $orderBy = null, $limit = null, $offset = null)
 */
class CompanyRepository extends ServiceEntityRepository
{
    public function __construct(ManagerRegistry $registry)
    {
        parent::__construct($registry, Company::class);
    }

    // /**
    //  * @return Company[] Returns an array of Company objects
    //  */
    /*
    public function findByExampleField($value)
    {
        return $this->createQueryBuilder('c')
            ->andWhere('c.exampleField = :val')
            ->setParameter('val', $value)
            ->orderBy('c.id', 'ASC')
            ->setMaxResults(10)
            ->getQuery()
            ->getResult()
        ;
    }
    */

    /*
    public function findOneBySomeField($value): ?Company
    {
        return $this->createQueryBuilder('c')
            ->andWhere('c.exampleField = :val')
            ->setParameter('val', $value)
            ->getQuery()
            ->getOneOrNullResult()
        ;
    }
    */
}

Answer 1

在控制器中，将 $repository = $entityManager->getRepository(CompanyRepository::class); 替换为
$repository = $entityManager->getRepository(Company::class);

并将use App\Repository\CompanyRepository;替换为use App\Entity\Company;

因为 getRepository() 需要实体 class，而不是存储库 class。

<?php

namespace App\Controller;

use App\Entity\Company;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

#[Route('/api/company', name: 'company')]
class CompanyController extends AbstractController
{
    #[Route(name: 'company.get', methods: ["GET"])]
    public function getCompanies(): Response
    {
        $entityManager = $this->getDoctrine()->getManager();
        $repository = $entityManager->getRepository(Company::class);

        $companies = $repository->findAll();
        $data = [];

        foreach ($companies as $company) {
            $data[] = $company->toArray();
        }

        return $this->json([
            'data' => $data
        ]);
    }
 }

Symfony error: The class xxx was not found in the chain configured namespaces App\Entity

Symfony error: The class xxx was not found in the chain configured namespaces App\Entity

php

doctrine

symfony