在Laravel 5.4上使用php artisan make:auth迁移错误
[Illuminate\Database\QueryException] SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes (SQL: alter tabl e users add unique users_email_unique(email)) [PDOException] SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes
当前回答
我添加了两个对我有用的解决方案。
第一个解决方案是:
在config目录下打开database.php文件。 将'engine' =>修改为'engine' => 'InnoDB' 这对我很管用。
第二个解决方案是:
在config目录下打开database.php文件。 2.编辑'charset' => 'utf8mb4'， 'collation' => 'utf8mb4_unicode_ci'， 来 'charset' => 'utf8'， 'collation' => 'utf8_unicode_ci'，
古德勒克
其他回答
对于可能遇到这种情况的任何人，我的问题是我正在创建一个类型为字符串的列，并试图使它->unsigned()当我想让它是一个整数时。
如前所述，我们在App/Providers中添加到AppServiceProvider.php
use Illuminate\Support\Facades\Schema; // add this
/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()
{
Schema::defaultStringLength(191); // also this line
}
你可以在下面的链接中看到更多细节(搜索“索引长度& MySQL / MariaDB”) https://laravel.com/docs/5.5/migrations
BUT WELL THAT's not what I published all about! the thing is even when doing the above you will likely to get another error (that's when you run php artisan migrate command and because of the problem of the length, the operation will likely stuck in the middle. solution is below, and the user table is likely created without the rest or not totally correctly) we need to roll back. the default roll back will not work. because the operation of migration didn't like finish. you need to delete the new created tables in the database manually.
我们可以这样做使用修补器如下所示:
L:\todos> php artisan tinker
Psy Shell v0.8.15 (PHP 7.1.10 — cli) by Justin Hileman
>>> Schema::drop('users')
=> null
我自己有一个问题与用户表。
之后你就可以开始了
PHP artisan migrate:回滚
PHP工匠迁移
推荐的解决方案是启用MySQL的innodb_large_prefix选项，这样你就不会陷入后续的问题。下面是如何做到这一点:
打开my.ini MySQL配置文件，并像这样在[mysqld]行下添加以下行。
[mysqld]
innodb_file_format = Barracuda
innodb_large_prefix = 1
innodb_file_per_table = ON
之后，保存更改并重新启动MySQL服务。
如果需要回滚，然后重新运行迁移。
如果您的问题仍然存在，请转到数据库配置文件并设置
'engine' => null, to 'engine' => 'innodb row_format=dynamic'
希望能有所帮助!
腔:
添加到。env文件
DB_ENGINE=InnoDB
我已经解决了这个问题，并编辑我的config->database.php文件喜欢我的数据库('charset'=>'utf8')和('collation'=>'utf8_general_ci')，所以我的问题解决了如下代码:
'mysql' => [
'driver' => 'mysql',
'host' => env('DB_HOST', '127.0.0.1'),
'port' => env('DB_PORT', '3306'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'unix_socket' => env('DB_SOCKET', ''),
'charset' => 'utf8',
'collation' => 'utf8_general_ci',
'prefix' => '',
'strict' => true,
'engine' => null,
],
