Symfony 2.8两个数据库连接

doctrine:
    dbal:
        default_connection: default
        connections:
            default:
                driver: pdo_mysql
                host: localhost
                port: 3306
                dbname: database1
                user: username1
                password: password1
                charset: utf8mb4
            second:
                driver: pdo_mysql
                host: localhost
                port: 3306
                dbname: database2
                user: username2
                password: password2
                charset: utf8mb4

$defaultEntityManager = $this->getDoctrine()->getManager('default');
$secondEntityManager = $this->getDoctrine()->getManager('second');

// 使用默认数据库连接进行查询
$defaultUsers = $defaultEntityManager->getRepository(User::class)->findAll();

// 使用第二个数据库连接进行查询
$secondUsers = $secondEntityManager->getRepository(User::class)->findAll();