使用Laravel来展示MongoDB的数据

2 年 ago
韵, 科
2 minutes
mongo_jun1201.png

我参考了下一页。
2018年02月09日在Laravel5.5中使用MongoDB创建网站。

MongoDB 数据的状态

$ mongosh
（省略）
test> use testDB;
switched to db testDB
testDB> db.post.find()
[
  {
    _id: ObjectId("609ef895eb0964e1af2f650c"),
    body: 'おはよう',
    date: '2018-1-10'
  },
  {
    _id: ObjectId("609ef89deb0964e1af2f650d"),
    body: 'こんにちは',
    date: '2018-2-20'
  },
  {
    _id: ObjectId("609ef8a4eb0964e1af2f650e"),
    body: '今日は雨が降ってます。',
    date: '2018-3-15'
  }
]
testDB>

使用mongosh创建上述数据的方法

use testDB;
db.post.insertOne({"body": "おはよう","date": "2018-1-10"});
db.post.insertOne({"body": "こんにちは","date": "2018-2-20"});
db.post.insertOne({"body": "今日は雨が降ってます。","date": "2018-3-15"});

1) 创建项目

laravel new proj01
cd proj01
composer require "jenssegers/mongodb"

2) 编辑 config/app.php

'providers' => [
// 略
        Jenssegers\Mongodb\MongodbServiceProvider::class,
 ],

    'aliases' => [
// 略
         'Moloquent' => Jenssegers\Mongodb\Eloquent\Model::class,
 ],

3）编辑 config/database.php

    'default' => env('DB_CONNECTION', 'mongodb'),
    // 略
    'connections' => [
        'mongodb' => [
            'driver' => 'mongodb',
            'host' => env('DB_HOST', 'localhost'),
            'port' => env('DB_PORT', 27017),
            'database' => env('DB_DATABASE', 'testDB'),
        ],
    ],

如果存在认证，则添加以下内容：

‘username’ => env(‘DB_USERNAME’,’scott’),
‘password’ => env(‘DB_PASSWORD’,’tiger123′),

4) 编辑 .env 文件

#DB_CONNECTION=mysql
#DB_HOST=127.0.0.1
#DB_PORT=3306
#DB_DATABASE=homestead
#DB_USERNAME=homestead
#DB_PASSWORD=secret
DB_CONNECTION=mongodb
DB_HOST=127.0.0.1
DB_PORT=27017
DB_DATABASE=testDB

5) 清除缓存

php artisan cache:clear

6) 编辑 routes/web.php

<?php
Route::get('/', 'App\Http\Controllers\TestController@index');

7) 创建 app/Http/Controllers/TestController.php

php artisan make:controller TestController

编辑 app/Http/Controllers/TestController.php。

<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Post;
class TestController extends Controller
{
    static function index() {
        $posts = Post::orderBy('_id', 'desc')->get();
        return view('index', ['posts' => $posts]);
    }
}

8）创建 app/Post.php。

数据库testDB中的集合是post

<?php
namespace App;
class Post extends \Moloquent
{
    protected $collection = 'post';
}

9) 创建 resources/views/index.blade.php

<div>全部で{{ count($posts) }}件です。</div>
<ul>
  @foreach($posts as $post)
    <li>{{ $post['date'] . ' | ' . $post['body'] }}</li>
  @endforeach
</ul>

10) 服务器启动 (Shì fú wù qǐ 

php artisan serve

11) 从客户端访问

http://本地主机:8000

我在以下环境下进行了确认。

$ uname -a
Linux iwata 5.13.0-27-generic #29-Ubuntu SMP Wed Jan 12 17:36:47 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

$ php --version
PHP 8.0.8 (cli) (built: Oct 26 2021 11:42:42) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.8, Copyright (c) Zend Technologies
    with Zend OPcache v8.0.8, Copyright (c), by Zend Technologies

$ php artisan --version
Laravel Framework 8.82.0
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