Laravel + Elasticsearch 实现中文搜索的方法

docker-compose up -d elasticsearch

docker-compose exec elasticsearch /usr/share/elasticsearch/bin/elasticsearch-plugin install {plugin-name}

// 重启容器
docker-compose restart elasticsearch

// 安装插件
docker-compose exec elasticsearch /usr/share/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.5.1/elasticsearch-analysis-ik-7.5.1.zip

 ~ curl -X POST "http://your_host/_analyze?pretty" -H 'Content-Type: application/json' -d'
{
 "analyzer": "ik_max_word",
 "text":   "我是中国人"
}
'

{
 "tokens" : [
  {
   "token" : "我",
   "start_offset" : 0,
   "end_offset" : 1,
   "type" : "CN_CHAR",
   "position" : 0
  },
  {
   "token" : "是",
   "start_offset" : 1,
   "end_offset" : 2,
   "type" : "CN_CHAR",
   "position" : 1
  },
  {
   "token" : "中国人",
   "start_offset" : 2,
   "end_offset" : 5,
   "type" : "CN_WORD",
   "position" : 2
  },
  {
   "token" : "中国",
   "start_offset" : 2,
   "end_offset" : 4,
   "type" : "CN_WORD",
   "position" : 3
  },
  {
   "token" : "国人",
   "start_offset" : 3,
   "end_offset" : 5,
   "type" : "CN_WORD",
   "position" : 4
  }
 ]
}

composer require tamayo/laravel-scout-elastic
 
composer require laravel/scout
 
php artisan vendor:publish

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

php artisan make:command ESOpenCommand

 public function handle()
  {
  $host = config('scout.elasticsearch.hosts');
  $index = config('scout.elasticsearch.index');
  $client = ClientBuilder::create()->setHosts($host)->build();

  if ($client->indices()->exists(['index' => $index])) {
    $this->warn("Index {$index} exists, deleting...");
    $client->indices()->delete(['index' => $index]);
  }

  $this->info("Creating index: {$index}");

  return $client->indices()->create([
    'index' => $index,
    'body' => [
      'settings' => [
        'number_of_shards' => 1,
        'number_of_replicas' => 0
      ],
      'mappings' => [
        '_source' => [
          'enabled' => true
        ],
        'properties' => [
          'id' => [
            'type' => 'long'
          ],
          'title' => [
            'type' => 'text',
            'analyzer' => 'ik_max_word',
            'search_analyzer' => 'ik_smart'
          ],
          'subtitle' => [
            'type' => 'text',
            'analyzer' => 'ik_max_word',
            'search_analyzer' => 'ik_smart'
          ],
          'content' => [
            'type' => 'text',
            'analyzer' => 'ik_max_word',
            'search_analyzer' => 'ik_smart'
          ]
        ],
      ]
    ]
  ]);
}

docker run -d --name kibana -e ELASTICSEARCH_HOSTS=http://elasticsearch_host -p 5601:5601 -e SERVER_NAME=ki.test kibana:7.5.2

curl -XPOST your_host/coding01_open/_create/1 -H 'Content-Type:application/json' -d'
{"content":"中韩渔警冲突调查：韩警平均每天扣1艘中国渔船"}

<?php

namespace App;

use App\Tools\Markdowner;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Laravel\Scout\Searchable;

class Article extends Model
{
  use Searchable;

  protected $connection = 'blog';
  protected $table = 'articles';
  use SoftDeletes;

  /**
   * The attributes that should be mutated to dates.
   *
   * @var array
   */
  protected $dates = ['published_at', 'created_at', 'deleted_at'];

  /**
   * The attributes that are mass assignable.
   *
   * @var array
   */
  protected $fillable = [
    'user_id',
    'last_user_id',
    'category_id',
    'title',
    'subtitle',
    'slug',
    'page_image',
    'content',
    'meta_description',
    'is_draft',
    'is_original',
    'published_at',
    'wechat_url',
  ];

  protected $casts = [
    'content' => 'array'
  ];

  /**
   * Set the content attribute.
   *
   * @param $value
   */
  public function setContentAttribute($value)
  {
    $data = [
      'raw' => $value,
      'html' => (new Markdowner)->convertMarkdownToHtml($value)
    ];

    $this->attributes['content'] = json_encode($data);
  }

  /**
   * 获取模型的可搜索数据
   *
   * @return array
   */
  public function toSearchableArray()
  {
    $data = [
      'id' => $this->id,
      'title' => $this->title,
      'subtitle' => $this->subtitle,
      'content' => $this->content['html']
    ];

    return $data;
  }

  public function searchableAs()
  {
    return '_doc';
  }
}

php artisan scout:import "App\Article"

class ElasearchCommand extends Command
{
  /**
   * The name and signature of the console command.
   *
   * @var string
   */
  protected $signature = 'command:search {query}';

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

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

  /**
   * Execute the console command.
   *
   * @return mixed
   */
  public function handle()
  {
    $article = Article::search($this->argument('query'))->first();
    $this->info($article->title);
  }
}