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我对 Doctrine 很陌生，我有一个问题。我用 CodeIgniter 安装了 Doctrine 2。这是我在 CodeIgniter 中调用 Doctrine 的课程：

<?php

use Doctrine\Common\ClassLoader;

class Doctrine
{
    public $conn;

    public function __construct()
    {
        try 
        {
            require_once APPPATH . '/third_party/Doctrine/Common/ClassLoader.php';

            $classLoader = new ClassLoader('Doctrine', APPPATH . 'third_party' );
            $classLoader->register();

            $config = new \Doctrine\DBAL\Configuration();
            $connectionParams = array(
                'dbname' => 'mydb',
                'user' => 'user',
                'password' => 'secret',
                'host' => 'localhost',
                'driver' => 'pdo_mysql'
            );



            $this->conn = \Doctrine\DBAL\DriverManager::getConnection($connectionParams, $config);

        } catch (\PDOException $e){
            echo 'An error as ocurred...';

        } catch (Exception $ex) {
            echo 'ERROR';
        }

    }

配置参数错误，有可能抛出异常，在本例中为PDOException. 但令我惊讶的是，我收到了消息

“发生错误......”我得到“致命错误：未捕获的异常'PDOException'，消息'SQLSTATE [HY000] [1045]用户'用户'（...）的访问被拒绝”

我尝试使用\PDOExceptionorPDOException进行捕获，但无法捕获异常......

有人能帮我吗？

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