Laravel中利用Scout集成Elasticsearch搜索引擎

寫在前面

Elasticsearch(如下簡稱es)是一個實時的分佈式搜索和分析引擎。php

在搜索引擎方面,不單單有Elasticsearch,像另外一篇提到的Algolia,還有sphinx、Solr等等,這裏不作評價和比較,本篇主要介紹laravel中如何使用Elasticsearch。html

首選必須安裝有Elasticsearch,請參考 https://www.tech1024.cn/origi...laravel

本文基於laravel5.5,其餘版本大同小異。sql

準備工做

經過composer安裝依賴包數據庫

composer require laravel/scout
composer require tamayo/laravel-scout-elastic

基本配置

在config/app.php文件中的providers數組中加入服務提供者數組

// config/app.php
'providers' => [
    // ...
    Laravel\Scout\ScoutServiceProvider::class,
    // ...
    ScoutEngines\Elasticsearch\ElasticsearchProvider::class,
],

使用如下命令生成scout配置文件app

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

在config/scout.php中加入elasticsearch的配置composer

'elasticsearch' => [
        'index' => env('ELASTICSEARCH_INDEX', 'laravel'),
        'hosts' => [
            env('ELASTICSEARCH_HOST', 'http://localhost:9200'),
        ],
    ],

而後咱們打開.env文件,加入scout和elasticsearch的配置elasticsearch

# scout配置
SCOUT_DRIVER=elasticsearch
SCOUT_PREFIX=

# elasticsearch 配置
ELASTICSEARCH_INDEX=esdemo
# elasticsearch 地址
ELASTICSEARCH_HOST=http://172.30.6.1:9200

建立索引

建立模型並填充數據

建立模型app/Student.php,爲方便後續測試,請先建表和填充數據,能夠手動使用sql語句添加數據,也使用laravel自動的數據遷移和填充,能夠參考 https://www.tech1024.cn/origi...分佈式

<?php
namespace App;

use Illuminate\Database\Eloquent\Model;

use Laravel\Scout\Searchable;

/**
 * 學生模型
 */
class Student extends Model
{
    use Searchable;

    /**
     * 索引名稱
     *
     * @return string
     */
    public function searchableAs()
    {
        return 'students_index';
    }

    /**
     * 可搜索的數據索引
     *
     * @return array
     */
    public function toSearchableArray()
    {
        $array = $this->toArray();

        // Customize array...

        return $array;
    }
}

把全部現有記錄導入到搜索索引裏

php artisan scout:import "App\Student"

是否是導入成功了呢?

php artisan scout:import "App\Student"

Imported [App\Student] models up to ID: 500
Imported [App\Student] models up to ID: 1000
Imported [App\Student] models up to ID: 1500
Imported [App\Student] models up to ID: 2000
Imported [App\Student] models up to ID: 2500
Imported [App\Student] models up to ID: 3000
Imported [App\Student] models up to ID: 3500
Imported [App\Student] models up to ID: 4000
Imported [App\Student] models up to ID: 4500
Imported [App\Student] models up to ID: 5000
Imported [App\Student] models up to ID: 5500
Imported [App\Student] models up to ID: 6000
Imported [App\Student] models up to ID: 6500
Imported [App\Student] models up to ID: 7000
Imported [App\Student] models up to ID: 7500
Imported [App\Student] models up to ID: 8000
Imported [App\Student] models up to ID: 8500
Imported [App\Student] models up to ID: 9000
Imported [App\Student] models up to ID: 9500
Imported [App\Student] models up to ID: 10000
All [App\Student] records have been imported.

咱們訪問es,http://172.30.6.1:9200/esdemo/students_index/_search

是否是已經有了剛剛導入的students_index索引數據

大功告成

$studens = App\Student::search('成燕')->get();
dd($studens);

能夠填充個百萬條數據試試,檢索速度,是否是比直接查詢數據庫要快不少呢?

更多用法請查閱官方文檔 https://www.elastic.co/guide/...

原文: http://www.tech1024.cn/origin...
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