这篇文章主要介绍了关于Laravel5.5执行表迁移命令出现表为空的解决方案，有着一定的参考价值，现在分享给大家，有需要的朋友可以参考一下
今天在使用一个第三方包 laravel-admin 时，出现了这样的错误：SQLSTATE[42000]: Syntax error or access violation: 1103 Incorrect table name '',折腾了好久，终于知道了解决方法，原来是配置文件的缓存没有清理。
一、问题
vagrant@homestead:~/Code/laravel-shop$ php artisan admin:install
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错误提示：
In Connection.php line 664:
SQLSTATE[42000]: Syntax error or access violation: 1103 Incorrect table name '' (SQL: create table `` (`id` int uns
igned not null auto_increment primary key, `username` varchar(190) not null, `password` varchar(60) not null, `name
` varchar(255) not null, `avatar` varchar(255) null, `remember_token` varchar(100) null, `created_at` timestamp nul
l, `updated_at` timestamp null) default character set utf8mb4 collate utf8mb4_unicode_ci)
In Connection.php line 452:
SQLSTATE[42000]: Syntax error or access violation: 1103 Incorrect table name ''
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二、解决方案
database/migrations/2016_01_04_173148_create_admin_table.php
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
class CreateAdminTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
$connection = config('admin.database.connection') ?: config('database.default');
// dd(app('config'));
Schema::connection($connection)->create(config('admin.database.users_table'), function (Blueprint $table) {
$table->increments('id');
$table->string('username', 190)->unique();
$table->string('password', 60);
$table->string('name');
$table->string('avatar')->nullable();
$table->string('remember_token', 100)->nullable();
$table->timestamps();
});
Schema::connection($connection)->create(config('admin.database.roles_table'), function (Blueprint $table) {
$table->increments('id');
$table->string('name', 50)->unique();
$table->string('slug', 50);
$table->timestamps();
});
Schema::connection($connection)->create(config('admin.database.permissions_table'), function (Blueprint $table) {
$table->increments('id');
$table->string('name', 50)->unique();
$table->string('slug', 50);
$table->string('http_method')->nullable();
$table->text('http_path')->nullable();
$table->timestamps();
});
Schema::connection($connection)->create(config('admin.database.menu_table'), function (Blueprint $table) {
$table->increments('id');
$table->integer('parent_id')->default(0);
$table->integer('order')->default(0);
$table->string('title', 50);
$table->string('icon', 50);
$table->string('uri', 50)->nullable();
$table->timestamps();
});
Schema::connection($connection)->create(config('admin.database.role_users_table'), function (Blueprint $table) {
$table->integer('role_id');
$table->integer('user_id');
$table->index(['role_id', 'user_id']);
$table->timestamps();
});
Schema::connection($connection)->create(config('admin.database.role_permissions_table'), function (Blueprint $table) {
$table->integer('role_id');
$table->integer('permission_id');
$table->index(['role_id', 'permission_id']);
$table->timestamps();
});
Schema::connection($connection)->create(config('admin.database.user_permissions_table'), function (Blueprint $table) {
$table->integer('user_id');
$table->integer('permission_id');
$table->index(['user_id', 'permission_id']);
$table->timestamps();
});
Schema::connection($connection)->create(config('admin.database.role_menu_table'), function (Blueprint $table) {
$table->integer('role_id');
$table->integer('menu_id');
$table->index(['role_id', 'menu_id']);
$table->timestamps();
});
Schema::connection($connection)->create(config('admin.database.operation_log_table'), function (Blueprint $table) {
$table->increments('id');
$table->integer('user_id');
$table->string('path');
$table->string('method', 10);
$table->string('ip', 15);
$table->text('input');
$table->index('user_id');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
$connection = config('admin.database.connection') ?: config('database.default');
Schema::connection($connection)->dropIfExists(config('admin.database.users_table'));
Schema::connection($connection)->dropIfExists(config('admin.database.roles_table'));
Schema::connection($connection)->dropIfExists(config('admin.database.permissions_table'));
Schema::connection($connection)->dropIfExists(config('admin.database.menu_table'));
Schema::connection($connection)->dropIfExists(config('admin.database.user_permissions_table'));
Schema::connection($connection)->dropIfExists(config('admin.database.role_users_table'));
Schema::connection($connection)->dropIfExists(config('admin.database.role_permissions_table'));
Schema::connection($connection)->dropIfExists(config('admin.database.role_menu_table'));
Schema::connection($connection)->dropIfExists(config('admin.database.operation_log_table'));
}
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清除配置文件缓存
vagrant@homestead:~/Code/laravel-shop$ php artisan config:cache
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再次执行发布命令，就可以了：
vagrant@homestead:~/Code/laravel-shop$ php artisan admin:install
Migrating: 2016_01_04_173148_create_admin_table
Migrated: 2016_01_04_173148_create_admin_table
Admin directory was created: /app/Admin
HomeController file was created: /app/Admin/Controllers/HomeController.php
ExampleController file was created: /app/Admin/Controllers/ExampleController.php
Bootstrap file was created: /app/Admin/bootstrap.php
Routes file was created: /app/Admin/routes.php
vagrant@homestead:~/Code/laravel-shop$
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