Laravel5.5问题：SQLSTATE[42000] Syntax error or access violation 1071 Specified key was too long; max k

我就是我 2022-06-05 10:20 116阅读 0赞

# Laravel5.5 配置后台管理包Voyager问题：SQLSTATE\[42000\]: Syntax error or access violation: 1071 Specified key was too long; max key length is 1000 bytes #

听说voyager不错，新建立一个文件尝试了一下，

D:\\wamp64\\www\\laravel\\myproject  
λ> php artisan voyager:install –with-dummy

问题让人头大，根据laravel官方的文档，更改laravel5.5的文件（ ../app/providers/appServiceProvider.php）内容 , 如下

<?php
    
    namespace App\Providers;
    
    use Illuminate\Support\ServiceProvider;
    use Illuminate\Support\Facades\Schema; //Import Schema
    
    
    class AppServiceProvider extends ServiceProvider
    {
        /** * Bootstrap any application services. * * @return void */
        public function boot()
        {
            Schema::defaultStringLength(191); //Solved by increasing StringLength
        }
    
        /** * Register any application services. * * @return void */
        public function register()
        {
            //
        }
    }

D:\\wamp64\\www\\laravel\\myproject

λ> php artisan voyager:install –with-dummy

数据库显示，users和migration成功导入，其他还是失败了。最后到github找到这个解决方案

[https://github.com/the-control-group/voyager/issues/901\#issuecomment-291470960][https_github.com_the-control-group_voyager_issues_901_issuecomment-291470960]

1. Update the "config/database.php" for 'mysql'
    'engine' => null,
    with
    'engine' => 'InnoDB ROW_FORMAT=DYNAMIC',
    ++++++++++++++++++++++++++++++++++++++++++++
    
    2. Update the "app/Providers/AppServiceProvider.php" with
    <?php
    namespace App\Providers;
    use Illuminate\Support\ServiceProvider;
    use Illuminate\Support\Facades\Schema;
    
    class AppServiceProvider extends ServiceProvider
    {
        /** * Bootstrap any application services. * * @return void */
        public function boot()
        {
            // Specified key was too long error, Laravel News post:
            Schema::defaultStringLength(191);
        }
    
        /** * Register any application services. * * @return void */
        public function register()
        {
            //
        }
    }
    ++++++++++++++++++++++++++++++++++++++++++++
    
    3. Execute Command:
    php artisan cache:clear
    php artisan config:clear
    php artisan voyager:install --with-dummy
    Now, everything works! :)

这里也有类似的问题：[https://github.com/the-control-group/voyager/issues/1333][https_github.com_the-control-group_voyager_issues_1333]

根据上述做了些更改，然后安装

D:\\wamp64\\www\\laravel\\myproject

λ> php artisan voyager:install –with-dummy

Setting up the hooks
    Hooks are now ready to use! Go ahead and try to "php artisan hook:install test-hook"
    Publishing the Voyager assets, database, language, and config files
    Copied Directory [\vendor\tcg\voyager\publishable\assets] To [\public\vendor\tcg\voyager\assets]
    Copied Directory [\vendor\tcg\voyager\publishable\database\migrations] To [\database\migrations]
    Copied Directory [\vendor\tcg\voyager\publishable\database\seeds] To [\database\seeds]
    Copied Directory [\vendor\tcg\voyager\publishable\demo_content] To [\storage\app\public]
    Copied Directory [\vendor\tcg\voyager\publishable\lang] To [\resources\lang]
    Publishing complete.
    Publishing complete.
    Migrating the database tables into your application
    Migration table created successfully.
    Migrating: 2014_10_12_000000_create_users_table
    Migrated:  2014_10_12_000000_create_users_table
    Migrating: 2014_10_12_100000_create_password_resets_table
    Migrated:  2014_10_12_100000_create_password_resets_table
    Migrating: 2016_01_01_000000_add_voyager_user_fields
    Migrated:  2016_01_01_000000_add_voyager_user_fields
    Migrating: 2016_01_01_000000_create_data_types_table
    Migrated:  2016_01_01_000000_create_data_types_table
    Migrating: 2016_01_01_000000_create_pages_table
    Migrated:  2016_01_01_000000_create_pages_table
    Migrating: 2016_01_01_000000_create_posts_table
    Migrated:  2016_01_01_000000_create_posts_table
    Migrating: 2016_02_15_204651_create_categories_table
    Migrated:  2016_02_15_204651_create_categories_table
    Migrating: 2016_05_19_173453_create_menu_table
    Migrated:  2016_05_19_173453_create_menu_table
    Migrating: 2016_10_21_190000_create_roles_table
    Migrated:  2016_10_21_190000_create_roles_table
    Migrating: 2016_10_21_190000_create_settings_table
    Migrated:  2016_10_21_190000_create_settings_table
    Migrating: 2016_11_30_135954_create_permission_table
    Migrated:  2016_11_30_135954_create_permission_table
    Migrating: 2016_11_30_141208_create_permission_role_table
    Migrated:  2016_11_30_141208_create_permission_role_table
    Migrating: 2016_12_26_201236_data_types__add__server_side
    Migrated:  2016_12_26_201236_data_types__add__server_side
    Migrating: 2017_01_13_000000_add_route_to_menu_items_table
    Migrated:  2017_01_13_000000_add_route_to_menu_items_table
    Migrating: 2017_01_14_005015_create_translations_table
    Migrated:  2017_01_14_005015_create_translations_table
    Migrating: 2017_01_15_000000_add_permission_group_id_to_permissions_table
    Migrated:  2017_01_15_000000_add_permission_group_id_to_permissions_table
    Migrating: 2017_01_15_000000_create_permission_groups_table
    Migrated:  2017_01_15_000000_create_permission_groups_table
    Migrating: 2017_01_15_000000_make_table_name_nullable_in_permissions_table
    Migrated:  2017_01_15_000000_make_table_name_nullable_in_permissions_table
    Migrating: 2017_03_06_000000_add_controller_to_data_types_table
    Migrated:  2017_03_06_000000_add_controller_to_data_types_table
    Migrating: 2017_04_11_000000_alter_post_nullable_fields_table
    Migrated:  2017_04_11_000000_alter_post_nullable_fields_table
    Migrating: 2017_04_21_000000_add_order_to_data_rows_table
    Migrated:  2017_04_21_000000_add_order_to_data_rows_table
    Migrating: 2017_07_05_210000_add_policyname_to_data_types_table
    Migrated:  2017_07_05_210000_add_policyname_to_data_types_table
    Migrating: 2017_08_05_000000_add_group_to_settings_table
    Migrated:  2017_08_05_000000_add_group_to_settings_table
    Attempting to set Voyager User model as parent to App\User
    Dumping the autoloaded files and reloading all new files
    Adding Voyager routes to routes/web.php
    Seeding data into the database
    Adding the storage symlink to your public folder
    The [public/storage] directory has been linked.
    Successfully installed Voyager! Enjoy

成功！

分析：关键是这个：

'engine' => 'InnoDB ROW_FORMAT=DYNAMIC'

上述这名话的意思是，采用MySQL存储引擎采用InnoDB(而不是MyISAM)，动态文本格式。当然InnoDB不是没有缺点，这个大家可以自己进一步深入研究。

[https_github.com_the-control-group_voyager_issues_901_issuecomment-291470960]: https://github.com/the-control-group/voyager/issues/901#issuecomment-291470960
[https_github.com_the-control-group_voyager_issues_1333]: https://github.com/the-control-group/voyager/issues/1333