一、下载 laravel 5.5

composer create-project laravel/laravel=5.5.* laravel5.5_factory

新建数据库 laravel5.5_factory

修改 .evn 配置文件

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=laravel5.5_factory
DB_USERNAME=laravel5.5_factory
DB_PASSWORD=laravel5.5_factory

修改中国时区，在 config/app.php 中修改

'timezone' => 'PRC',

切换目录

cd laravel5.5_factory

二、创建模型

创建 post model

php artisan make:model Post -m

修改迁移文件：posts_table.php

public function up()
{
    Schema::create('posts', function (Blueprint $table) {
        $table->increments('id');
        $table->string('title');
        $table->text('content');
        $table->timestamps();
    });
}

执行数据迁移

php artisan migrate

如果报错

Specified key was too long; max key length is 1000 bytes

问题解决：在 AppServiceProvider 中调用 Schema::defaultStringLength 方法来实现配置：

use Illuminate\Support\Facades\Schema;

public function boot()
{
    Schema::defaultStringLength(191);
}

三、factory

创建文章 factory

php artisan make:factory PostFactory --model=Post

此命令会生成一个文件：database/factories/PostFactory.php，打开这个文件，进行修改

$factory->define(App\Post::class, function (Faker $faker) {
    return [
        'title' => $faker->sentence,
        'content' => $faker->paragraph,
    ];
});

进入 tinker

php artisan tinker

执行 factory

factory('App\Post', 5)->create()