Laravel5使用ElasticSearch

1. 安装elasticsearch和ik插件 （elasticsearch的使用需要配置java环境，自行百度配置好java环境） elasticsearch集成包（包括ik中文插件）安装地址：https://github.com/medcl/elasticsearch-rtf       
2. 测试安装  启动elasticSearch：bin/elasticSearch -d       windows系统以管理员身份运行elasticsearch.bat
   
3. 测试是否安装成功  127.0.0.1:9200 
   
4. 安装 ElasticSearch Scout Engine 包
   

composer require tamayo/laravel-scout-elastic

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

 5.在app.php中添加对应的Provider

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

6.在count.php中配置参数

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

 'elasticsearch' => [
        'index' => env('ELASTICSEARCH_INDEX', 'laravel5'),
        'hosts' => [
            env('ELASTICSEARCH_HOST', 'http://127.0.0.1:9200'),
        ],
    ],

7.创建ylaravel的索引和模板

• php artisan make:command ESInit  创建命令行
• 修改ESInit.php文件

  <?php
  
  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 es for post';
  
      /**
       * 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
          $url = config('scout.elasticsearch.hosts')[0] . '/_template/tmp';
          $client->put($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');
          $client->put($url, [
              'json' => [
                  'settings' => [
                      'refresh_interval' => '5s',
                      'number_of_shards' => 1,
                      'number_of_replicas' => 0,
                  ],
                  'mappings' => [
                      '_default_' => [
                          '_all' => [
                              'enabled' => false
                          ]
                      ]
                  ]
              ]
          ]);
          $this->info("========创建索引成功=======");
  }
  
  }
  

• 挂载ESInit，在APP\Console\Kerbel.php文件$commands数组中添加如下代码

\App\Console\Commands\ESInit::class

8.调用es脚本    php artisan es:init

9.导入数据库和数据

• 修改数据模型，以post为例

  <?php
  
  namespace App;
  use Illuminate\Database\Eloquent\Model;
  use Illuminate\Database\Eloquent\Builder;
  use Laravel\Scout\Searchable; class Post extends Model
  {
      use Searchable;
  
      protected $guarded=[]; //不可以注入的字段
  
      //定义索引里面的type
      public function searchableAs()
      {
      	return 'posts_index';
      }
  
      //定义有哪些字段需要搜索
      public function toSearchableArray()
      {
      	return[
      		'title'=>$this->title,
      		'content'=>$this->content,
      	];
      } 

• 导入数据模型，php artisan scout:import "App\Post"
• 验证 http://localhost:9200/laravel5/posts_index/1
  

10.Postcontroller中完成功能代码的撰写

    public function search()
    {
        $this->validate(request(),[
            'query'=>'required'
            ]);
        $query=request('query');


        $posts=Post::search($query)->paginate(10);
        return view('post/search',compact('posts','query'));
    }