連接Yii Db設置時出現Db錯誤

Question

我收到以下錯誤。

CDbConnection failed to open the DB connection: SQLSTATE[HY000] [2002] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

這是我的Db設置，現在我是Yii的新手，所以我不知道是否還有其他我應該提及的事情，所以如果還有其他事情要告訴我，我會盡快粘貼它們。

//這是yiic控制台應用程序的配置。 //可在此處配置任何可寫的CConsoleApplication屬性。

return array(
    'basePath'=>dirname(__FILE__).DIRECTORY_SEPARATOR.'..',
    'name'=>'My Console Application',

    // preloading 'log' component
    'preload'=>array('log'),

    // application components
    'components'=>array(
//      'db'=>array(
//          'connectionString' => 'sqlite:'.dirname(__FILE__).'/../data/testdrive.db',
//      ),
        // uncomment the following to use a MySQL database

        'db'=>array(
            'connectionString' => 'mysql:host=localhost;dbname=mydb',
            'emulatePrepare' => true,
            'username' => 'root',
            'password' => '',
            'charset' => 'utf8',
        ),

        'log'=>array(
            'class'=>'CLogRouter',
            'routes'=>array(
                array(
                    'class'=>'CFileLogRoute',
                    'levels'=>'error, warning',
                ),
            ),
        ),
    ),
);

Answer 1

我認為您缺少課程：

'db'=>array(
            'class'=>'CDbConnection', // specify class 
            'connectionString' => 'mysql:host=localhost;dbname=mydb',
            'emulatePrepare' => true,
            'username' => 'root',
            'password' => '',
            'charset' => 'utf8',
        ),

Answer 2

我認為mysql服務器未在您的計算機或您使用的服務器上運行。