Zend\ServiceManager\ServiceManager :: get无法获取或创建db实例 [英] Zend\ServiceManager\ServiceManager::get was unable to fetch or create an instance for db

问题描述

我已登入表单。
我总是得到这个错误在我的控制器，它无法获取或创建一个这个数据库的实例。我已经读了所有的文档，为什么这个错误发生。我试过一切来解决这个问题，但它仍然不工作。有人可以帮助我。我使用我的数据库的其他事情，它可以进行连接，但当我想加载登录页面，我得到这个错误。

i have made a login form. I'm always getting this error in my controller that it was unable to fetch or create an instance for this db. i have read all the documentation about it and why this error occurs. i tried everything to fix this problem, but it is still not working. Can somebody help me. I'm using my database for other things and it can make a connection, but when i want to load the login page, i'm getting this error.

这是我的global.php中的代码

This is the code in my global.php

return array(
    'db' => array(
        'driver'         => 'Pdo',
        'dsn'            => 'mysql:dbname=music;host=localhost',
        'driver_options' => array(
            PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
        ),
        'username'       => 'root',
        'password'       => ''
    ),
    'service_manager' => array(
        'factories' => array(
            'Zend\Db\Adapter\Adapter'
            => 'Zend\Db\Adapter\AdapterServiceFactory',
        ),
    ),
);

这是我的控制器

public function indexAction()
    {
        /** @var Mysqli $dbAdapter */
        $dbAdapter = $this->serviceLocator->get('db'); // This is where i'm getting the error from
        $db = $this->params('fms');

        $loginForm = new LoginForm();
        if ($this->request->isPost()) {

            $loginForm->setData($this->request->getPost());
            if ($loginForm->isValid()) {
                $auth = new AuthenticationService();
                $result = $auth->authenticate(new SqlAdapter(
                    $loginForm->get('email')->getValue(),
                    $loginForm->get('password')->getValue(),
                    $dbAdapter
            ));

                if ($result->getCode() == Result::SUCCESS) {
                    echo 'success';
                    return $this->redirect()->toUrl($this->url('')->fromRoute());
                } else {
                    echo 'fail';
                }

            }
        }

        $this->view->loginForm = $loginForm;
        return $this->view;

    }

我不知道我在这里做错了。请有人帮助我:)

I don't know what i'm doing wrong here. Please somebody help me :)

推荐答案

您可能需要的是 -

What you may need is this -

$dbAdapter = $this->serviceLocator->get('Zend\Db\Adapter\Adapter');

如果您需要 db array然后这样做 -

If you need the exact db array then do this -

$config = $this->serviceLocator->get('config');
$db_array = $config['db'];

我希望它有帮助。

这篇关于Zend\ServiceManager\ServiceManager :: get无法获取或创建db实例的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！