在yii2中迁移时,异常'无法找到驱动程序'

Question

这是我的堆栈跟踪:

  Exception 'yii\db\Exception' with message 'could not find driver'

in /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/db/Connection.php:534

#0 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/db/Connection.php(836): yii\db\Connection->open()
        #1 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/db/Connection.php(823): yii\db\Connection->getMasterPdo()
        #2 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/db/Command.php(208): yii\db\Connection->getSlavePdo()
        #3 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/db/Command.php(816): yii\db\Command->prepare(true)
        #4 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/db/Command.php(350): yii\db\Command->queryInternal('fetchAll', NULL)
        #5 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/db/mysql/Schema.php(198): yii\db\Command->queryAll()
        #6 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/db/mysql/Schema.php(97): yii\db\mysql\Schema->findColumns(Object(yii\db\TableSchema))
        #7 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/db/Schema.php(140): yii\db\mysql\Schema->loadTableSchema('migration')
        #8 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/console/controllers/MigrateController.php(121): yii\db\Schema->getTableSchema('{{%migration}}', true)
        #9 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/console/controllers/BaseMigrateController.php(610): yii\console\controllers\MigrateController->getMigrationHistory(NULL)
        #10 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/console/controllers/BaseMigrateController.php(102): yii\console\controllers\BaseMigrateController->getNewMigrations()
        #11 [internal function]: yii\console\controllers\BaseMigrateController->actionUp(0)
        #12 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/base/InlineAction.php(55): call_user_func_array(Array, Array)
        #13 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/base/Controller.php(151): yii\base\InlineAction->runWithParams(Array)
        #14 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/console/Controller.php(91): yii\base\Controller->runAction('', Array)
        #15 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/base/Module.php(455): yii\console\Controller->runAction('', Array)
        #16 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/console/Application.php(161): yii\base\Module->runAction('migrate', Array)
        #17 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/console/Application.php(137): yii\console\Application->runAction('migrate', Array)
        #18 /opt/lampp/htdocs/advanced/vendor/yiisoft/yii2/base/Application.php(375): yii\console\Application->handleRequest(Object(yii\console\Request))
        #19 /opt/lampp/htdocs/advanced/yii(31): yii\base\Application->run()
        #20 {main}

我是yii2的新手.我在中添加了数据库名称,用户名advaced/common/config/main-local.php.使用xampp webserver和php的版本是5.6.8并且还启用了PDO.

这是我的数据库配置.

'db' => [
        'class' => 'yii\db\Connection',
        'dsn' => 'mysql:host=localhost;dbname=yii2advanced',
        'username' => 'root',
        'password' => '',
        'charset' => 'utf8',
    ],

Answer 1

在Yii2上找到了这个

"很可能是你的系统配置.如果你使用的是MAMP,XAMPP等软件包,你可能需要在db.php配置文件中将"localhost"更改为"127.0.0.1".另外如果你在Linux上可能需要安装一些其他额外的软件包,如php5-mysql和类似的东西."

Answer 2

在Yii2(高级)迁移期间我有类似的情况(Ubuntu 14.04和PHP中的Xampp)

这是我得到的信息:

带有消息'无法找到驱动程序'的异常'yii\db\Exception'

所以在谷歌搜索和阅读这个线程和其他人后,我发现这可能是可能的问题

PHP扩展"pdo_mysql"已禁用或根本未安装

并在我的终端尝试了这个:

php -m

在意识到模块不在那里之后......

sudo apt-get install php5-gd php5-mysql

快速安装后,必须重新启动服务...

sudo /opt/lampp/lampp restart

....最后(重试迁移)

php yii migrate

已成功迁移.

希望你发现它有用并为别人工作.

我发现它在问ubuntu,但我无法添加链接或代码,因为这是我的第一篇文章.

链接:http://www.yiiframework.com/forum/index.php/topic/49450-error-on-migrate-command-advanced-yii2-app/