Laravel 下 Elasticsearch/Algolia 全文搜索使用案例

代码的坏味道的个人博客 / 39 / 11 / 创建于 6年前 / 更新于 5年前 / 1 个改进

#1.安装elasticsearch

官网网址：https://github.com/medcl/elasticsearch-rtf

#2.启动elasticsearch服务

windows环境下，进入安装目录。点击elasticsearch.bat即可。
如果是Linux环境,内存要大一点.

1.下载:wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.1.zip
2.解压:unzip elasticsearch-5.5.1.zip
3.进入目录:cd elasticsearch-5.5.1/
4.前台启动: ./bin/elasticsearch
5.后台启动: ./bin/elasticsearch -d
6.检查启动: curl localhost:9200

如图既安装成功
Laravel 融合 Elasticsearch 在个人博客中使用

注意：elasticsearch 依赖jdk环境，具体环境自己网上安装查看，这里不详述

# 3.laravel项目安装配置

安装scout

composer require laravel/scout

安装elasticsearch

composer require tamayo/laravel-scout-elastic

安装GuzzleHttp包：

composer require Guzzlehttp/guzzle

在config/app.php的providers 数组添加：

Laravel\Scout\ScoutServiceProvider::class,
ScoutEngines\Elasticsearch\ElasticsearchProvider::class,

发布配置文件：

php artisan vendor:publish --provider="Laravel\Scout\ScoutServiceProvider"

发布生成的config/scout.php文件添加

 'driver' => env('SCOUT_DRIVER', 'elasticsearch'),
    'elasticsearch' => [
        'index' => env('ELASTICSEARCH_INDEX', 'laravel'),//索引名称
        'hosts' => [
            env('ELASTICSEARCH_HOST', 'http://127.0.0.1:9200'),
        ],
    ],

# 4.创建es初始化命令

php artisan make:command EsInit

具体实现代码如下：

namespace App\Console\Commands;

use GuzzleHttp\Client;
use Illuminate\Console\Command;

class EsInit extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'es:init';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'init laravel';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        $client = new Client();
        $this->createTemplate($client);
        $this->createIndex($client);
    }

//创建索引
    protected function createIndex($client)
    {
        $url = config('scout.elasticsearch.hosts')[0].'/'.config('scout.elasticsearch.index');
        $client->put($url, [
            'json' => [
                'settings' => [
                    'refresh_interval' => '5s',
                    'number_of_shards' => 1,
                    'number_of_replicas' => 0,
                ],
                'mappings' => [
                    '_default_' => [
                        '_all' => [
                            'enabled' => false
                        ]
                    ]
                ]
            ]
        ]);
    }
//创建模板
    protected function createTemplate($client)
    {
        $url = config('scout.elasticsearch.hosts')[0] .'/_template/rtf';
        $client->put($url, [
            'json' => [
                'template' => '*',
                'settings' => [
                    'number_of_shards' => 1
                ],
                'mappings' => [
                    '_default_' => [
                        '_all' => [
                            'enabled' => true
                        ],
                        'dynamic_templates' => [
                            [
                                'strings' => [
                                    'match_mapping_type' => 'string',
                                    'mapping' => [
                                        'type' => 'text',
                                        'analyzer' => 'ik_smart',
                                        'ignore_above' => 256,
                                        'fields' => [
                                            'keyword' => [
                                                'type' => 'keyword'
                                            ]
                                        ]
                                    ]
                                ]
                            ]
                        ]
                    ]
                ]
            ]
        ]);

    }
}

初始化脚本

php artisan es:init

# 5.创建数据模型

namespace App\Models;
use Laravel\Scout\Searchable;
class Article extends BaseModel
{
    use Searchable;
    protected $guarded = [];
    protected $table = 'article';

    public function toSearchableArray()
    {
        return [
            'title' => $this->title,
            'content' => $this->content
        ];
    }
}

# 6.创建控制器,并写好路由

namespace App\Http\Controllers\Web;

use App\Http\Controllers\Controller;
use App\Models\Article;
use Illuminate\Http\Request;

class IndexController extends Controller
{
    public function search(Request $request)
    {
        $params=$request->keyword;
        $article= Article::search($params)->paginate();
        return $this->output($article, '请求成功', STATUS_OK);
    }
}

# 7.导出数据模型

php artisan scout:import "App\Models\Article"

命令完成会有如下提示，同时es里面也会将数据库指定字段写入
Laravel 融合 Elasticsearch 在个人博客中使用