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laravel搜索实现

laravel搜索实现

作者: 小慕先森 | 来源:发表于2017-08-10 23:51 被阅读0次

一、安装环境
1、elasticsearch需要java环境。所以先在java官网上下载java来安装java环境
2、下载elasticsearch在java环境中的运行包,该包实现搜索的索引等

下载地址:
https://github.com/medcl/elasticsearch-rtf
运行:
Mac/Linux:
cd elasticsearch/bin
./elasticsearch -d
sudo -u ops ES_JAVA_OPTS="-Xms2024m -Xmx2024m"  ./bin/elasticsearch  -d

Windows:
cd elasticsearch/bin
elasticsearch.bat

插件比较多,不用的插件可以删除
留下analysis-ik插件即可

是否启动可在logs/elasticsearch.log中查看启动的ip端口,默认9200和9300
或者在浏览器127.0.0.1:9200出现json可以说明安装成功
三、安装laravel使用的elasticsearch所需要的包
1、laravel搜索驱动(可以随时更换驱动)
可以根据laravel的文档安装修改

composer require laravel/scout

你需要将 ScoutServiceProvider 添加到你的 config/app.php 配置文件的 providers 数组中:

Laravel\Scout\ScoutServiceProvider::class,

注册好 Scout 的服务提供者之后,你可以使用 vendor:publish Artisan 命令生成 Scout 的配置文件。这个命令会在你的 config 目录下生成 scout.php 配置文件:

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

2、安装Laravel Scout Elasticsearch Driver

https://github.com/ErickTamayo/laravel-scout-elastic

下载:composer require tamayo/laravel-scout-elastic
增加:
'providers' => [
    ...
    Laravel\Scout\ScoutServiceProvider::class,
    ...
    ScoutEngines\Elasticsearch\ElasticsearchProvider::class,
],

四、修改配置scout.php

<?php

return [
    'driver' => env('SCOUT_DRIVER', 'elasticsearch'),

    'queue' => env('SCOUT_QUEUE', false),

    'chunk' => [
        'searchable' => 500,
        'unsearchable' => 500,
    ],

    'algolia' => [
        'id' => env('ALGOLIA_APP_ID', ''),
        'secret' => env('ALGOLIA_SECRET', ''),
    ],
//增加
    'elasticsearch' => [
        'index' => env('ELASTICSEARCH_INDEX', 'laravel'),
//这个laravel代表elasticsearch的索引,相当于你的数据库
        'hosts' => [
            env('ELASTICSEARCH_HOST', 'http://127.0.0.1:9200'),
        ],
//host后面是ip:port
    ],
];

五、Laravel自定义命令行

初始化ES
php artisan make:command ESint

安装GuzzleHttp
在Console中Commands中编写Esint

composer require guzzlehttp/guzzle
<?php

namespace App\Console\Commands;

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

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

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

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

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        $client = new Client();
        // 创建模版,进行文本分析
        $url = config('scout.elasticsearch.hosts')[0] . '/_template/tmp';
//        $client->delete($url);
        $client->put($url, [
            'json' => [
                'template' => config('scout.elasticsearch.index'),
                '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'
                                            ]
                                        ]
                                    ]
                                ]
                            ]
                        ]
                    ]
                ]
            ]
        ]);
        $this->info('#############创建模板成功#############');
        $url = config('scout.elasticsearch.hosts')[0] . '/' . config('scout.elasticsearch.index');
//        $client->delete($url);
        $client->put($url, [
            'json' => [
                'settings' => [
                    'refresh_interval' => '5s',//更新时间
                    'number_of_shards' => 1,
                    'number_of_replicas' => 0,
                ],
                'mappings' => [
                    '_default_' => [
                        '_all' => [
                            'enabled' => false
                        ]
                    ]
                ]
            ]
        ]);
        $this->info('#############创建索引成功#############');
    }
}

Kernel 中注册

<?php

namespace App\Console;

use Illuminate\Console\Scheduling\Schedule;
use Illuminate\Foundation\Console\Kernel as ConsoleKernel;

class Kernel extends ConsoleKernel
{
    /**
     * The Artisan commands provided by your application.
     *
     * @var array
     */
    protected $commands = [
        //挂载新的命令
        \App\Console\Commands\ESInit::class
    ];

    /**
     * Define the application's command schedule.
     *
     * @param  \Illuminate\Console\Scheduling\Schedule  $schedule
     * @return void
     */
    protected function schedule(Schedule $schedule)
    {
        // $schedule->command('inspire')
        //          ->hourly();
    }

    /**
     * Register the Closure based commands for the application.
     *
     * @return void
     */
    protected function commands()
    {
        require base_path('routes/console.php');
    }
}

六、导入数据
在你需要搜索的模型里面加入

<?php

namespace App\Http\Model;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Laravel\Scout\Searchable;

class Article extends Model
{
    //需要引入
    use Searchable;
  

    /**
     * 得到该模型索引的名称。相当于表
     *
     * @return string
     */
    public function searchableAs()
    {
        return 'article';
    }
//定义哪些字段需要索引
    public function toSearchableArray()
    {
        return [
            'title' => $this->title,
            'content' => $this->content,
        ];

    }
}

导入数据:

php artisan scout:import  "带上命名空间的模型名"

可以在浏览器输入127.0.0.1:9200/laravel/article/id来查看
七、渲染搜索页面
在search方法中
$query就是搜索的字段,如:

$query = request('query');
$articles = Article::search($query)->paginate(6);

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