laravel5.5 elasticsearch

composer.json

composer require laravel/scout=5.0  

註冊服務提供器，你需要將 ScoutServiceProvider 添加到你的配置文件 config/app.php 的 providers 數組中。

'providers' => [
...
Laravel\Scout\ScoutServiceProvider::class,
],

 composer require tamayo/laravel-scout-elastic=4.0

安裝Java 自行百度 參考 https://blog.csdn.net/gaokcl/article/details/82289672

​
參考：https://learnku.com/articles/20311 十分感謝 @沙漠行者 下面也是他的建議：

1. 使用這個包是怎麼同步數據的？是通過使用它的增，刪。也就是說不要手動的添加和刪除數據庫的數據。
2. 如果數據怎麼導入都不一致，這個問題確實出現過，那麼我們就要先徹底的清除 es 中的數據，在從新 import 你的 model 裏的數據。這樣數據也就可以保持同步了。
3. 切忌！如果你手動刪除或者添加了數據庫中的數據，要先執行 scout:flush，再執行 scout:import。
4. 如果覺得這個包不好用，可以直接使用原生的語句去寫，其實 es 就相當於一個數據庫，可以這麼理解。但是其實不一樣的。用途不一樣。開始對它的語法肯定覺得費勁，多閱讀一下官方文檔！慢慢就好了！
es  需要  Java支持的，自行百度安裝（Windows  Linux  都是一樣）

修改

/vendor/tamayo/laravel-scout-elastic/src/ElasticsearchEngine.php

<?php

namespace ScoutEngines\Elasticsearch;

use Laravel\Scout\Builder;
use Laravel\Scout\Engines\Engine;
use Elasticsearch\Client as Elastic;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Support\Collection as BaseCollection;

class ElasticsearchEngine extends Engine
{
    /**
     * Index where the models will be saved.
     *
     * @var string
     */
    protected $index;
    
    /**
     * Elastic where the instance of Elastic|\Elasticsearch\Client is stored.
     *
     * @var object
     */
    protected $elastic;

    /**
     * Create a new engine instance.
     *
     * @param  \Elasticsearch\Client  $elastic
     * @return void
     */
    public function __construct(Elastic $elastic, $index)
    {
        $this->elastic = $elastic;
        $this->index = $index;
    }

    /**
     * Update the given model in the index.
     *
     * @param  Collection  $models
     * @return void
     */
    public function update($models)
    {
        $params['body'] = [];

        $models->each(function($model) use (&$params)
        {
            $params['body'][] = [
                'update' => [
                    '_id' => $model->getKey(),
                    '_index' => $this->index,
                    '_type' => $model->searchableAs(),
                ]
            ];
            $params['body'][] = [
                'doc' => $model->toSearchableArray(),
                'doc_as_upsert' => true
            ];
        });

        $this->elastic->bulk($params);
    }

    /**
     * Remove the given model from the index.
     *
     * @param  Collection  $models
     * @return void
     */
    public function delete($models)
    {
        $params['body'] = [];

        $models->each(function($model) use (&$params)
        {
            $params['body'][] = [
                'delete' => [
                    '_id' => $model->getKey(),
                    '_index' => $this->index,
                    '_type' => $model->searchableAs(),
                ]
            ];
        });

        $this->elastic->bulk($params);
    }

    /**
     * Perform the given search on the engine.
     *
     * @param  Builder  $builder
     * @return mixed
     */
    public function search(Builder $builder)
    {
        return $this->performSearch($builder, array_filter([
            'numericFilters' => $this->filters($builder),
            'size' => $builder->limit,
        ]));
    }

    /**
     * Perform the given search on the engine.
     *
     * @param  Builder  $builder
     * @param  int  $perPage
     * @param  int  $page
     * @return mixed
     */
    public function paginate(Builder $builder, $perPage, $page)
    {
        $result = $this->performSearch($builder, [
            'numericFilters' => $this->filters($builder),
            'from' => (($page * $perPage) - $perPage),
            'size' => $perPage,
        ]);

       $result['nbPages'] = $result['hits']['total']/$perPage;

        return $result;
    }

    /**
     * Perform the given search on the engine.
     *
     * @param  Builder  $builder
     * @param  array  $options
     * @return mixed
     */
    protected function performSearch(Builder $builder, array $options = [])
    {
        $params = [
            'index' => $this->index,
            'type' => $builder->index ?: $builder->model->searchableAs(),
            'body' => [
                'query' => [
                    'bool' => [
                        'must' => [['query_string' => [ 'query' => "*{$builder->query}*"]]]
                    ]
                ]
            ]
        ];

        if ($sort = $this->sort($builder)) {
            $params['body']['sort'] = $sort;
        }

        if (isset($options['from'])) {
            $params['body']['from'] = $options['from'];
        }

        if (isset($options['size'])) {
            $params['body']['size'] = $options['size'];
        }

//        if (isset($options['numericFilters']) && count($options['numericFilters'])) {
//            $params['body']['query']['bool']['must'] = array_merge($params['body']['query']['bool']['must'],
//                $options['numericFilters']);
//        }

        //這裏是修改的地方，組合成我們想要的查詢語句
        if(isset($options['numericFilters'][0]['query_string'])) {
            $params['body']['query']['bool']['must'][0]['query_string']['fields'] = $options['numericFilters'][0]['query_string'];
        } else {
            $params['body']['query']['bool']['must'] = array_merge($params['body']['query']['bool']['must'],
                $options['numericFilters']);
        }

        if ($builder->callback) {
            return call_user_func(
                $builder->callback,
                $this->elastic,
                $builder->query,
                $params
            );
        }

        return $this->elastic->search($params);
    }

    /**
     * Get the filter array for the query.
     *
     * @param  Builder  $builder
     * @return array
     */
    protected function filters(Builder $builder)
    {
        return collect($builder->wheres)->map(function ($value, $key) {
            if (is_array($value)) {
                return ['terms' => [$key => $value]];
            }

            //這裏是修改的地方,$key = 'query',$value =['字段1','字段2']。 就是這裏的where('query', ['字段1','字段2'])。
            if ($key == 'query') {
                return ['query_string' => $value];
            }

            return ['match_phrase' => [$key => $value]];
        })->values()->all();
    }

    /**
     * Pluck and return the primary keys of the given results.
     *
     * @param  mixed  $results
     * @return \Illuminate\Support\Collection
     */
    public function mapIds($results)
    {
        return collect($results['hits']['hits'])->pluck('_id')->values();
    }

    /**
     * Map the given results to instances of the given model.
     *
     * @param  \Laravel\Scout\Builder  $builder
     * @param  mixed  $results
     * @param  \Illuminate\Database\Eloquent\Model  $model
     * @return Collection
     */
    public function map(Builder $builder, $results, $model)
    {
        if ($results['hits']['total'] === 0) {
            return Collection::make();
        }

        $keys = collect($results['hits']['hits'])
                        ->pluck('_id')->values()->all();

        $models = $model->getScoutModelsByIds(
            $builder, $keys
        )->keyBy(function ($model) {
            return $model->getScoutKey();
        });

        return collect($results['hits']['hits'])->map(function ($hit) use ($model, $models) {
            return isset($models[$hit['_id']]) ? $models[$hit['_id']] : null;
        })->filter()->values();
    }

    /**
     * Get the total count from a raw result returned by the engine.
     *
     * @param  mixed  $results
     * @return int
     */
    public function getTotalCount($results)
    {
        return $results['hits']['total'];
    }

    /**
     * Generates the sort if theres any.
     *
     * @param  Builder $builder
     * @return array|null
     */
    protected function sort($builder)
    {
        if (count($builder->orders) == 0) {
            return null;
        }

        return collect($builder->orders)->map(function($order) {
            return [$order['column'] => $order['direction']];
        })->toArray();
    }
}

/vendor/laravel/scout/src/Searchable.php

<?php

namespace Laravel\Scout;

use Laravel\Scout\Builder;
use Laravel\Scout\Jobs\MakeSearchable;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Collection as BaseCollection;

trait Searchable
{
    /**
     * Additional metadata attributes managed by Scout.
     *
     * @var array
     */
    protected $scoutMetadata = [];

    /**
     * Boot the trait.
     *
     * @return void
     */
    public static function bootSearchable()
    {
        static::addGlobalScope(new SearchableScope);

        static::observe(new ModelObserver);

        (new static)->registerSearchableMacros();
    }

    /**
     * Register the searchable macros.
     *
     * @return void
     */
    public function registerSearchableMacros()
    {
        $self = $this;

        BaseCollection::macro('searchable', function () use ($self) {
            $self->queueMakeSearchable($this);
        });

        BaseCollection::macro('unsearchable', function () use ($self) {
            $self->queueRemoveFromSearch($this);
        });
    }

    /**
     * Dispatch the job to make the given models searchable.
     *
     * @param  \Illuminate\Database\Eloquent\Collection  $models
     * @return void
     */
    public function queueMakeSearchable($models)
    {
        if ($models->isEmpty()) {
            return;
        }

        if (! config('scout.queue')) {
            return $models->first()->searchableUsing()->update($models);
        }

        dispatch((new MakeSearchable($models))
                ->onQueue($models->first()->syncWithSearchUsingQueue())
                ->onConnection($models->first()->syncWithSearchUsing()));
    }

    /**
     * Dispatch the job to make the given models unsearchable.
     *
     * @param  \Illuminate\Database\Eloquent\Collection  $models
     * @return void
     */
    public function queueRemoveFromSearch($models)
    {
        if ($models->isEmpty()) {
            return;
        }

        return $models->first()->searchableUsing()->delete($models);
    }

    /**
     * Determine if the model should be searchable.
     *
     * @return bool
     */
    public function shouldBeSearchable()
    {
        return true;
    }

    /**
     * Perform a search against the model's indexed data.
     *
     * @param  string  $query
     * @param  Closure  $callback
     * @return \Laravel\Scout\Builder
     */
    public static function search($query, $callback = null)
    {
        return new Builder(
            new static, $query, $callback, config('scout.soft_delete', false)
        );
    }

    /**
     * Make all instances of the model searchable.
     *
     * @return void
     */
    public static function makeAllSearchable()
    {
        $self = new static();

        $softDeletes = in_array(SoftDeletes::class, class_uses_recursive(get_called_class())) &&
                       config('scout.soft_delete', false);

        $self->newQuery()
            ->when($softDeletes, function ($query) {
                $query->withTrashed();
            })
            ->orderBy($self->getKeyName())
            ->searchable();
    }

    /**
     * Make the given model instance searchable.
     *
     * @return void
     */
    public function searchable()
    {
        Collection::make([$this])->searchable();
    }

    /**
     * Remove all instances of the model from the search index.
     *
     * @return void
     */
    public static function removeAllFromSearch()
    {
        $self = new static();

        $self->newQuery()
            ->orderBy($self->getKeyName())
            ->unsearchable();
    }

    /**
     * Remove the given model instance from the search index.
     *
     * @return void
     */
    public function unsearchable()
    {
        Collection::make([$this])->unsearchable();
    }

    /**
     * Get the requested models from an array of object IDs;
     *
     * @param  \Laravel\Scout\Builder  $builder
     * @param  array  $ids
     * @return mixed
     */
    public function getScoutModelsByIds(Builder $builder, array $ids)
    {
        $query = in_array(SoftDeletes::class, class_uses_recursive($this))
                        ? $this->withTrashed() : $this->newQuery();

        //把這行代碼註釋掉，不然會報錯：Undefined property: Laravel\Scout\Builder::$queryCallback
//        if ($builder->queryCallback) {
//            call_user_func($builder->queryCallback, $query);
//        }

        return $query->whereIn(
            $this->getScoutKeyName(), $ids
        )->get();
    }

    /**
     * Enable search syncing for this model.
     *
     * @return void
     */
    public static function enableSearchSyncing()
    {
        ModelObserver::enableSyncingFor(get_called_class());
    }

    /**
     * Disable search syncing for this model.
     *
     * @return void
     */
    public static function disableSearchSyncing()
    {
        ModelObserver::disableSyncingFor(get_called_class());
    }

    /**
     * Temporarily disable search syncing for the given callback.
     *
     * @param  callable  $callback
     * @return mixed
     */
    public static function withoutSyncingToSearch($callback)
    {
        static::disableSearchSyncing();

        try {
            return $callback();
        } finally {
            static::enableSearchSyncing();
        }
    }

    /**
     * Get the index name for the model.
     *
     * @return string
     */
    public function searchableAs()
    {
        return config('scout.prefix').$this->getTable();
    }

    /**
     * Get the indexable data array for the model.
     *
     * @return array
     */
    public function toSearchableArray()
    {
        return $this->toArray();
    }

    /**
     * Get the Scout engine for the model.
     *
     * @return mixed
     */
    public function searchableUsing()
    {
        return app(EngineManager::class)->engine();
    }

    /**
     * Get the queue connection that should be used when syncing.
     *
     * @return string
     */
    public function syncWithSearchUsing()
    {
        return config('scout.queue.connection') ?: config('queue.default');
    }

    /**
     * Get the queue that should be used with syncing
     *
     * @return  string
     */
    public function syncWithSearchUsingQueue()
    {
        return config('scout.queue.queue');
    }

    /**
     * Sync the soft deleted status for this model into the metadata.
     *
     * @return $this
     */
    public function pushSoftDeleteMetadata()
    {
        return $this->withScoutMetadata('__soft_deleted', $this->trashed() ? 1 : 0);
    }

    /**
     * Get all Scout related metadata.
     *
     * @return array
     */
    public function scoutMetadata()
    {
        return $this->scoutMetadata;
    }

    /**
     * Set a Scout related metadata.
     *
     * @param  string  $key
     * @param  mixed  $value
     * @return void
     */
    public function withScoutMetadata($key, $value)
    {
        $this->scoutMetadata[$key] = $value;

        return $this;
    }

    /**
     * Get the value used to index the model.
     *
     * @return mixed
     */
    public function getScoutKey()
    {
        return $this->getKey();
    }

    /**
     * Get the key name used to index the model.
     *
     * @return mixed
     */
    public function getScoutKeyName()
    {
        return $this->getQualifiedKeyName();
    }
}

<?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'; // 使用command  什麼命令啓動腳本

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

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

    /**
     * Execute the console command.
     * 實際要做的事情
     * php artisan es:init
     *
     * @return mixed
     */
    public function handle()
    {
        $client = new Client();
        // 創建模版
        $url = config('scout.elasticsearch.hosts')[0] . '/_template/tmp';
        $client->delete($url); // 一開始沒有，
        $client->put($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_max_word',  // 安裝ik中文分詞
                                        'ignore_above' => 256,
                                        'fields' => [
                                            'keyword' => [
                                                'type' => 'keyword'
                                            ]
                                        ]
                                    ]
                                ]
                            ]
                        ]
                    ]
                ]
            ]
        ]);
        $this->info('=====創建模板成功=====');
        // 創建 index
        $url = config('scout.elasticsearch.hosts')[0] . '/' . config('scout.elasticsearch.index');
        $client->delete($url); // 一開始沒有，報錯使用
        $client->put($url, [
            'json' => [
                'settings' => [
                    'refresh_interval' => '5s',
                    'number_of_shards' => 1,
                    'number_of_replicas' => 0,
                ],
                'mappings' => [
                    '_default_' => [
                        '_all' => [
                            'enabled' => false
                        ]
                    ]
                ]
            ]
        ]);
        $this->info('=====創建索引成功=====');

    }
}

ik中文分詞 ===> windows10
https://blog.csdn.net/qq_41676216/article/details/80557066