问题
I am using Laravel 5 and getting the following exception:
PDOException (1044) SQLSTATE[HY000] [1044] Access denied for user ''@'localhost' to database 'forge'
My database configuration file is:
<?php
return [
/*
|--------------------------------------------------------------------------
| PDO Fetch Style
|--------------------------------------------------------------------------
|
| By default, database results will be returned as instances of the PHP
| stdClass object; however, you may desire to retrieve records in an
| array format for simplicity. Here you can tweak the fetch style.
|
*/
'fetch' => PDO::FETCH_CLASS,
/*
|--------------------------------------------------------------------------
| Default Database Connection Name
|--------------------------------------------------------------------------
|
| Here you may specify which of the database connections below you wish
| to use as your default connection for all database work. Of course
| you may use many connections at once using the Database library.
|
*/
'default' => 'mysql',
/*
|--------------------------------------------------------------------------
| Database Connections
|--------------------------------------------------------------------------
|
| Here are each of the database connections setup for your application.
| Of course, examples of configuring each database platform that is
| supported by Laravel is shown below to make development simple.
|
|
| All database work in Laravel is done through the PHP PDO facilities
| so make sure you have the driver for your particular database of
| choice installed on your machine before you begin development.
|
*/
'connections' => [
'sqlite' => [
'driver' => 'sqlite',
'database' => storage_path().'/database.sqlite',
'prefix' => '',
],
'mysql' => [
'driver' => 'mysql',
'host' => env('DB_HOST', 'localhost'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => false,
],
'pgsql' => [
'driver' => 'pgsql',
'host' => env('DB_HOST', 'localhost'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'charset' => 'utf8',
'prefix' => '',
'schema' => 'public',
],
'sqlsrv' => [
'driver' => 'sqlsrv',
'host' => env('DB_HOST', 'localhost'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'prefix' => '',
],
],
/*
|--------------------------------------------------------------------------
| Migration Repository Table
|--------------------------------------------------------------------------
|
| This table keeps track of all the migrations that have already run for
| your application. Using this information, we can determine which of
| the migrations on disk haven't actually been run in the database.
|
*/
'migrations' => 'migrations',
/*
|--------------------------------------------------------------------------
| Redis Databases
|--------------------------------------------------------------------------
|
| Redis is an open source, fast, and advanced key-value store that also
| provides a richer set of commands than a typical key-value systems
| such as APC or Memcached. Laravel makes it easy to dig right in.
|
*/
'redis' => [
'cluster' => false,
'default' => [
'host' => '127.0.0.1',
'port' => 6379,
'database' => 0,
],
],
];
How can I solve it?
回答1:
Put a .env file in your root directory and paste this code there.
APP_ENV=local
APP_DEBUG=true
APP_KEY=1CaND3OKKvOGSBAlCg6IyrRmTQWwZjOO
DB_HOST = localhost
DB_DATABASE = YOUR_DATABASE_NAME
DB_USERNAME = USER_NAME
DB_PASSWORD = PASSWORD
CACHE_DRIVER=file
SESSION_DRIVER=file
QUEUE_DRIVER=sync
MAIL_DRIVER=smtp
MAIL_HOST=mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
Update your database, username and password field here and it should solve your problem. In your configuration file env() function is looking for this file and variables from here.
UPDATE: You must create a blank database before running the app or migration.
回答2:
We forgot to set DB_USERNAME= in the .env file, so we got this error:
SQLSTATE[HY000] [1044] Access denied for user ''@'localhost' to database 'forge'
Open the .env file and edit it. Just set up correct DB credentials:
DB_USERNAME= //Your Database Username
DB_USERNAME should be set to root if you do not have a default username in the installation time
After changes of .env enter this command in your terminal for clear cache:php artisan config:cache
NOTE: If there is still error
If you are using the PHP's default web server (eg. php artisan serve) you need to restart your server
OR
If you have used XAMPP then restart your Apache server
回答3:
DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=YOUR_DATABASE_NAME
DB_USERNAME=root
DB_PASSWORD=
The DB_USERNAME= should be set to root if you do not have a default username in the installation of MySQL in XAMPP.
回答4:
You can check the current environment with: php artisan env
next
- create under config/development | staging (folder)
- save a file
database.phpwithdevelopment | staging access - edit
.envfileAPP_ENV=development | staging | production
回答5:
Try to go to database.php file correct your database name,username and password
<?php
return [
/*
|--------------------------------------------------------------------------
| PDO Fetch Style
|--------------------------------------------------------------------------
|
| By default, database results will be returned as instances of the PHP
| stdClass object; however, you may desire to retrieve records in an
| array format for simplicity. Here you can tweak the fetch style.
|
*/
'fetch' => PDO::FETCH_OBJ,
/*
|--------------------------------------------------------------------------
| Default Database Connection Name
|--------------------------------------------------------------------------
|
| Here you may specify which of the database connections below you wish
| to use as your default connection for all database work. Of course
| you may use many connections at once using the Database library.
|
*/
'default' => env('DB_CONNECTION', 'mysql'),
/*
|--------------------------------------------------------------------------
| Database Connections
|--------------------------------------------------------------------------
|
| Here are each of the database connections setup for your application.
| Of course, examples of configuring each database platform that is
| supported by Laravel is shown below to make development simple.
|
|
| All database work in Laravel is done through the PHP PDO facilities
| so make sure you have the driver for your particular database of
| choice installed on your machine before you begin development.
|
*/
'connections' => [
'sqlite' => [
'driver' => 'sqlite',
'database' => env('DB_DATABASE', database_path('database.sqlite')),
'prefix' => '',
],
'mysql' => [
'driver' => 'mysql',
'host' => env('DB_HOST', 'localhost'),
'port' => env('DB_PORT', '3306'),
'database' => env('DB_DATABASE', 'msm'),----database name
'username' => env('DB_USERNAME', 'root'),--localhost username
'password' => env('DB_PASSWORD', ''),--localhost password
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => true,
'engine' => null,
],
'pgsql' => [
'driver' => 'pgsql',
'host' => env('DB_HOST', 'localhost'),
'port' => env('DB_PORT', '5432'),
'database' => env('DB_DATABASE', 'msm'),----database name
'username' => env('DB_USERNAME', 'root'),--localhost username
'password' => env('DB_PASSWORD', ''),--localhost password
'charset' => 'utf8',
'prefix' => '',
'schema' => 'public',
'sslmode' => 'prefer',
],
],
/*
|--------------------------------------------------------------------------
| Migration Repository Table
|--------------------------------------------------------------------------
|
| This table keeps track of all the migrations that have already run for
| your application. Using this information, we can determine which of
| the migrations on disk haven't actually been run in the database.
|
*/
'migrations' => 'migrations',
/*
|--------------------------------------------------------------------------
| Redis Databases
|--------------------------------------------------------------------------
|
| Redis is an open source, fast, and advanced key-value store that also
| provides a richer set of commands than a typical key-value systems
| such as APC or Memcached. Laravel makes it easy to dig right in.
|
*/
'redis' => [
'cluster' => false,
'default' => [
'host' => env('REDIS_HOST', 'localhost'),
'password' => env('REDIS_PASSWORD', null),
'port' => env('REDIS_PORT', 6379),
'database' => 0,
],
],
];
回答6:
Sometime in the future. This will be a basic setup if using MySQL instead of Homestead. Config->database.php file
'mysql' => [
'driver' => 'mysql',
'host' => env('DB_HOST', 'localhost'),
'database' => env('DB_DATABASE', 'yourDatabaseName'),
'username' => env('DB_USERNAME', 'root'),
'password' => env('DB_PASSWORD'),
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => false,
],
and in your .env file
APP_ENV=local
APP_DEBUG=true
APP_KEY=ruA9CAKRJCFgLOD1nc5o1BmvaTGokasi
DB_HOST=localhost
DB_DATABASE=yourDatabaseName
CACHE_DRIVER=file
SESSION_DRIVER=file
QUEUE_DRIVER=sync
MAIL_DRIVER=smtp
MAIL_HOST=mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
and if you run the command it should work smoothly.
回答7:
This problem can be caused by the file not having the expected ".env" extension.
If you have file extensions hidden in Windows (which is on by default), then it can easily look like the extension is ".env", when it is actually something like, like ".env.txt".
This means that the program won't be able to find your ".env" file because it doesn't have the right extension.
Open the file with an editor like Sublime Text, and you'll see what the actual extension is. If it has a ".txt" extension, delete that part and re-save.
回答8:
I was getting the same message with empty username. The username was always blank.
The issue was with MySQL. The SQLSTATE error message is being passed directly from MySQL.
So then I deleted the database and user. Re-created the database in the Databases tab of PhpMyAdmin. And importantly separately added the user and privileges. This fixed the issue.
I could connect from the MySQL client and run migrations.
回答9:
If you don't require login while accessing the database
Try database username as root and password field leave blank
This solves my problem
来源：https://stackoverflow.com/questions/29986626/pdoexception-1044-sqlstatehy000-1044-access-denied-for-user-localhost