Magento的错误：SQLSTATE [HY000] [1045]访问被拒绝的用户 'bn_magento' @ 'localhost' 的

a:4:{i:0;s:92: 
"SQLSTATE[HY000] [1045] Access denied for user 'bn_magento'@'localhost' (using password: YES)";i:1;s:5974:" 
#0 C:\xampp\apps\magento\htdocs\vendor\magento\zendframework1\library\Zend\Db\Adapter\Pdo\Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect() 
#1 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\DB\Adapter\Pdo\Mysql.php(328): Zend_Db_Adapter_Pdo_Mysql->_connect() 
#2 C:\xampp\apps\magento\htdocs\vendor\magento\zendframework1\library\Zend\Db\Adapter\Abstract.php(460): Magento\Framework\DB\Adapter\Pdo\Mysql->_connect() 
#3 C:\xampp\apps\magento\htdocs\vendor\magento\zendframework1\library\Zend\Db\Adapter\Pdo\Abstract.php(238): Zend_Db_Adapter_Abstract->query('SET NAMES utf8;', Array) 
#4 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\DB\Adapter\Pdo\Mysql.php(433): Zend_Db_Adapter_Pdo_Abstract->query('SET NAMES utf8;', Array) 
#5 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\DB\Adapter\Pdo\Mysql.php(488): Magento\Framework\DB\Adapter\Pdo\Mysql->_query('SET NAMES utf8;', Array) 
#6 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\Model\Resource\Type\Db\Pdo\Mysql.php(63): Magento\Framework\DB\Adapter\Pdo\Mysql->query('SET NAMES utf8;') 
#7 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\Model\Resource\Type\Db\ConnectionFactory.php(43): Magento\Framework\Model\Resource\Type\Db\Pdo\Mysql->getConnection(Object(Magento\Framework\DB\Logger\Null)) 
#8 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\App\Resource\ConnectionFactory.php(24): Magento\Framework\Model\Resource\Type\Db\ConnectionFactory->create(Array) 
#9 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\App\Resource.php(113): Magento\Framework\App\Resource\ConnectionFactory->create(Array) 
#10 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\App\Resource.php(93): Magento\Framework\App\Resource->getConnectionByName('default') 
#11 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\Model\Resource\Db\AbstractDb.php(305): Magento\Framework\App\Resource->getConnection('core_write') 
#12 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\Model\Resource\Db\AbstractDb.php(335): Magento\Framework\Model\Resource\Db\AbstractDb->_getConnection('write') 
#13 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\Model\Resource\Db\AbstractDb.php(320): Magento\Framework\Model\Resource\Db\AbstractDb->_getWriteAdapter() 
#14 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\Model\Resource\Db\AbstractDb.php(345): Magento\Framework\Model\Resource\Db\AbstractDb->_getReadAdapter() 
#15 C:\xampp\apps\magento\htdocs\var\generation\Magento\Store\Model\Resource\Website\Interceptor.php(89): Magento\Framework\Model\Resource\Db\AbstractDb->getReadConnection() 
#16 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\Model\Resource\Db\Collection\AbstractCollection.php(123): Magento\Store\Model\Resource\Website\Interceptor->getReadConnection() 
#17 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\ObjectManager\Factory\AbstractFactory.php(107): Magento\Framework\Model\Resource\Db\Collection\AbstractCollection->__construct(Object(Magento\Framework\Data\Collection\EntityFactory), Object(Magento\Framework\Logger\Monolog), Object(Magento\Framework\Data\Collection\Db\FetchStrategy\Cache), Object(Magento\Framework\Event\Manager\Proxy), NULL, NULL) 
#18 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\ObjectManager\Factory\Dynamic\Developer.php(91): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Magento\\Store\\M...', Array) 
#19 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\ObjectManager\ObjectManager.php(57): Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create('Magento\\Store\\M...', Array) 
#20 C:\xampp\apps\magento\htdocs\var\generation\Magento\Store\Model\Resource\Website\CollectionFactory.php(43): Magento\Framework\ObjectManager\ObjectManager->create('\\Magento\\Store\\...', Array) 
#21 C:\xampp\apps\magento\htdocs\app\code\Magento\Store\Model\Storage\Db.php(198): Magento\Store\Model\Resource\Website\CollectionFactory->create() 
#22 C:\xampp\apps\magento\htdocs\app\code\Magento\Store\Model\Storage\Db.php(468): Magento\Store\Model\Storage\Db->_initStores() 
#23 C:\xampp\apps\magento\htdocs\app\code\Magento\Store\Model\StorageFactory.php(142): Magento\Store\Model\Storage\Db->reinitStores() 
#24 C:\xampp\apps\magento\htdocs\app\code\Magento\Store\Model\StorageFactory.php(117): Magento\Store\Model\StorageFactory->_reinitStores(Object(Magento\Store\Model\Storage\Db), Array) 
#25 C:\xampp\apps\magento\htdocs\app\code\Magento\Store\Model\StoreManager.php(121): Magento\Store\Model\StorageFactory->get(Array) 
#26 C:\xampp\apps\magento\htdocs\app\code\Magento\Store\Model\StoreManager.php(187): Magento\Store\Model\StoreManager->_getStorage() 
#27 C:\xampp\apps\magento\htdocs\app\code\Magento\Store\App\Request\PathInfoProcessor.php(35): Magento\Store\Model\StoreManager->getStores(false, true) 
#28 C:\xampp\apps\magento\htdocs\var\generation\Magento\Store\App\Request\PathInfoProcessor\Proxy.php(95): Magento\Store\App\Request\PathInfoProcessor->process(Object(Magento\Framework\App\Request\Http), '/') 
#29 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\App\Request\Http.php(146): Magento\Store\App\Request\PathInfoProcessor\Proxy->process(Object(Magento\Framework\App\Request\Http), '/') 
#30 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\HTTP\PhpEnvironment\Request.php(185): Magento\Framework\App\Request\Http->setPathInfo() 
#31 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\App\Request\Http.php(189): Magento\Framework\HTTP\PhpEnvironment\Request->getPathInfo() 
#32 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\App\Http.php(110): Magento\Framework\App\Request\Http->getFrontName() 
#33 C:\xampp\apps\magento\htdocs\lib\internal\Magento\Framework\App\Bootstrap.php(257): Magento\Framework\App\Http->launch() 
#34 C:\xampp\apps\magento\htdocs\index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http)) 
#35 {main} 
";s:3:"url";s:9:"/magento/";s:11:"script_name";s:18:"/magento/index.php";}
来源
2015-11-26 CodeSession
什么程序会向您抛出此错误，您是否尝试设置magento2？ – Chiragit007
它似乎你的用户没有权限的数据库。检查本地主机用户的数据库权限。 –