如何在PHP Laravel Lumen中 Build 与数据库的连接？

我正在尝试通过 localhost 运行基于流明的查询 . 我不知道如何正确调用正确的数据库名称 .

编辑： The reason I'm getting the error below is because of the name of the db name in my .env file in my project. 我的 .env 文件中的 DB_DATABASE=mydbschemaname 行需要有我的数据库名称，但是如何找到它？我找不到任何地方 .

我的代码如下， routes.php 位于app-> Http：

$app->get('/records', 'UserController@index');

UserController.php 在app-> Http-> Controllers中：

namespace App\Http\Controllers;

use App\User;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;

class UserController extends Controller
{

    public function index() {
        $users = User::all();
        return response()->json($users);
    }
}

User.php 在app-> Http：

namespace App;

use Illuminate\Auth\Authenticatable;
use Laravel\Lumen\Auth\Authorizable;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;

class User extends Model implements
    AuthenticatableContract,
    AuthorizableContract
{
    use Authenticatable, Authorizable;

    protected $fillable = [
        'name', 'email',
    ];

    protected $hidden = [
        'password',
    ];
}

[date]_create_users_table.php 在app-> database-> migrations中：

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateUsersTable extends Migration
{
    public function up()
    {
        Schema::create('users', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name', 200);
            $table->string('email', 200)->unique();
            $table->string('password', 200);
            $table->timestamps();
        });

        DB::table('users')->insert(
            ['id' => 1, 'name' => 'example', 'email' => 'example@example.com', 'password' => 'thisisthepassword', 'updated_at' => '2015-10-15 01:23:45', 'created_at' => '2015-10-15 01:23:45']
        );
    }

    public function down()
    {
        Schema::drop('users');
    }
}

当然，我有 database.php 位于app-> vendor-> laravel-> lumen-framework-> config：

<?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' => 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' => [

        'testing' => [
            'driver' => 'sqlite',
            'database' => ':memory:',
        ],

        'sqlite' => [
            'driver'   => 'sqlite',
            'database' => env('DB_DATABASE', base_path('database/database.sqlite')),
            'prefix'   => env('DB_PREFIX', ''),
        ],

        'mysql' => [
            'driver'    => 'mysql',
            'host'      => env('DB_HOST', 'localhost'),
            'port'      => env('DB_PORT', 3306),
            'database'  => env('DB_DATABASE', 'forge'),
            'username'  => env('DB_USERNAME', 'forge'),
            'password'  => env('DB_PASSWORD', ''),
            'charset'   => env('DB_CHARSET', 'utf8'),
            'collation' => env('DB_COLLATION', 'utf8_unicode_ci'),
            'prefix'    => env('DB_PREFIX', ''),
            'timezone'  => env('DB_TIMEZONE', '+00:00'),
            'strict'    => env('DB_STRICT_MODE', false),
        ],

        'pgsql' => [
            'driver'   => 'pgsql',
            'host'     => env('DB_HOST', 'localhost'),
            'port'     => env('DB_PORT', 5432),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'charset'  => env('DB_CHARSET', 'utf8'),
            'prefix'   => env('DB_PREFIX', ''),
            'schema'   => env('DB_SCHEMA', 'public'),
        ],

        'sqlsrv' => [
            'driver'   => 'sqlsrv',
            'host'     => env('DB_HOST', 'localhost'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'charset'  => env('DB_CHARSET', 'utf8'),
            'prefix'   => env('DB_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' => env('REDIS_CLUSTER', false),

        'default' => [
            'host'     => env('REDIS_HOST', '127.0.0.1'),
            'port'     => env('REDIS_PORT', 6379),
            'database' => env('REDIS_DATABASE', 0),
            'password' => env('REDIS_PASSWORD', null),
        ],

    ],

];

最后，这是我的 .env 文件位于app项目文件夹外的根项目文件夹中：

APP_ENV=local
APP_DEBUG=true
APP_KEY=SomeRandomKey!!!

APP_LOCALE=en
APP_FALLBACK_LOCALE=en

DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=database
DB_USERNAME=homestead
DB_PASSWORD=secret

CACHE_DRIVER=memcached
SESSION_DRIVER=memcached
QUEUE_DRIVER=database

我'm assuming it'这个最后一个文件（ .env ），我必须更改 DB_DATABASE 名称，但我不完全确定 . 任何帮助，将不胜感激 .

仅供参考：这里的最终结果是能够连接到数据库并显示我在用户表中添加的用户的记录 .