搜索范围
结果权重
搜索页面
主要是博客刚好想做个搜索,顺便就整理成文章
Laravel + Elasticsearch 很多前辈都写过教程和案例,但是随着Elasticsearch和laravel的版本升级 以前的文章很多都不适用新版本的,建议大家使用任何开源项目时应该过一遍文档以当前使用的版本文档为主,教程为辅
ik中文分词插件的Elasticsearch$ docker pull ar414/elasticsearch-7.9-ik-plugin
本地映射到docker容器内，防止docker重启数据丢失
$ mkdir -p /data/elasticsearch/data $ mkdir -p /data/elasticsearch/log $ chmod -R 777 /data/elasticsearch/data $ chmod -R 777 /data/elasticsearch/log
docker run -d -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" -v /data/elasticsearch/data:/var/lib/elasticsearch -v /data/elasticsearch/log:/var/log/elasticsearch ar414/elasticsearch-7.9-ik-plugin
$ curl http://localhost:9200{
"name" : "01ac21393985", "cluster_name" : "docker-cluster", "cluster_uuid" : "h8L336qcRb2i1aydOv04Og", "version" : {
"number" : "7.9.0", "build_flavor" : "default", "build_type" : "docker", "build_hash" : "a479a2a7fce0389512d6a9361301708b92dff667", "build_date" : "2020-08-11T21:36:48.204330Z", "build_snapshot" : false, "lucene_version" : "8.6.0", "minimum_wire_compatibility_version" : "6.8.0", "minimum_index_compatibility_version" : "6.0.0-beta1"
}, "tagline" : "You Know, for Search"}curl -X POST "http://localhost:9200/_analyze?pretty" -H 'Content-Type: application/json' -d'
{
"analyzer": "ik_max_word",
"text": "laravel天下无敌"
}
'{
"tokens" : [
{
"token" : "laravel", "start_offset" : 0, "end_offset" : 7, "type" : "ENGLISH", "position" : 0 }, {
"token" : "天下无敌", "start_offset" : 7, "end_offset" : 11, "type" : "CN_WORD", "position" : 1 }, {
"token" : "天下", "start_offset" : 7, "end_offset" : 9, "type" : "CN_WORD", "position" : 2 }, {
"token" : "无敌", "start_offset" : 9, "end_offset" : 11, "type" : "CN_WORD", "position" : 3 }
]}Elasticsearch官方有提供 SDK，在 Laravel 项目中可以更加优雅快速的接入 Elasticsearch，Laravel 本身有提供 Scout全文搜索 的解决方案，我们只需将默认的 Algolia 驱动 替换成ElasticSearch驱动。
$ composer require laravel/scout $ composer require matchish/laravel-scout-elasticsearch
生成 Scout 配置文件(config/scout.php)
$ php artisan vendor:publish --provider="Laravel\Scout\ScoutServiceProvider"Copied File [\vendor\laravel\scout\config\scout.php] To [\config\scout.php]Publishing complete.
指定 Scout 驱动
.env文件中指定（建议）SCOUT_DRIVER=Matchish\ScoutElasticSearch\Engines\ElasticSearchEngine
config/scout.php直接修改默认驱动'driver' => env('SCOUT_DRIVER', 'algolia')改为'driver' => env('SCOUT_DRIVER', 'Matchish\ScoutElasticSearch\Engines\ElasticSearchEngine')指定Elasticsearch服务IP端口
如果使用docker部署则使用
docker0的IP，Linux通过ifconfig查看
在.env中配置
ELASTICSEARCH_HOST=172.17.0.1:9200
注册服务config/app.php
'providers' => [ // Other Service Providers \Matchish\ScoutElasticSearch\ElasticSearchServiceProvider::class],
清除配置缓存
$ php artisan config:clear
至此 laravel 已经接入 Elasticsearch
通过博客右上角的搜索框可以搜索到与关键词相关的文章，从以下几点匹配
涉及到2张 Mysql表 以及字段
创建索引配置文件（config/elasticsearch.php）
$ touch config/elasticsearch.php
elasticsearch.php 配置字段映射
[
'mappings' => [
'blog-articles' => [
"properties"=> [
"content"=> [
"type"=> "text",
"analyzer"=> "ik_max_word",
"search_analyzer"=> "ik_smart"
],
"tags"=> [
"type"=> "text",
"analyzer"=> "ik_max_word",
"search_analyzer"=> "ik_smart"
],
"title"=> [
"type"=> "text",
"analyzer"=> "ik_max_word",
"search_analyzer"=> "ik_smart"
]
]
]
]
],];laravel天下无敌 -> laravel，天下无敌,天下,无敌laravel天下无敌 -> laravel，天下无敌建议先看一遍 Laravel Scout 使用文档
引入Laravel Scout
namespace App\Models\Blog;
use Laravel\Scout\Searchable;
class Article extends BlogBaseModel
{
use Searchable;
}指定索引(刚刚配置文件中的elasticsearch.indices.mappings.blog-articles)
/**
* 指定索引
* @return string
*/
public function searchableAs()
{
return 'blog-articles';
}设置导入索引的数据字段
/**
* 设置导入索引的数据字段
* @return array
*/
public function toSearchableArray()
{
return [
'content' => ArticleContent::query()
->where('article_id',$this->id)
->value('content'),
'tags' => implode(',',$this->tags),
'title' => $this->title
];
}指定 搜索索引中存储的唯一ID
/**
* 指定 搜索索引中存储的唯一ID
* @return mixed
*/
public function getScoutKey()
{
return $this->id;
}
/**
* 指定 搜索索引中存储的唯一ID的键名
* @return string
*/
public function getScoutKeyName()
{
return 'id';
}其实是将数据表中的数据通过Elasticsearch导入到Lucene
Elasticsearch 是 Lucene 的封装，提供了 REST API 的操作接口
php artisan scout:importphp artisan scout:import ${model}$ php artisan scout:import "App\Models\Blog\Article"Importing [App\Models\Blog\Article]Switching to the new index 5/5 [⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬⚬] 100%[OK] All [App\Models\Blog\Article] records have been imported.
导入失败,常见原因:
$ curl -XGET http://localhost:9200/blog-articles/_mapping?pretty{
"blog-articles_1598362919" : {
"mappings" : {
"properties" : {
"__class_name" : {
"type" : "text", "fields" : {
"keyword" : {
"type" : "keyword", "ignore_above" : 256 }
}
}, "content" : {
"type" : "text", "analyzer" : "ik_max_word", "search_analyzer" : "ik_smart"
}, "tags" : {
"type" : "text", "analyzer" : "ik_max_word", "search_analyzer" : "ik_smart"
}, "title" : {
"type" : "text", "analyzer" : "ik_max_word", "search_analyzer" : "ik_smart"
}
}
}
}}创建一个测试命令行
$ php artisan make:command ElasticTest
代码
getPreciseTimestamp(3);
$articles = Article::search($this->argument('query'))->get()->toArray();
$userTime = Carbon::now()->getPreciseTimestamp(3) - $startTime;
echo "耗时(毫秒)：{$userTime} \n";
//content在另外一张表中，方便观察测试 这里输出
if(!empty($articles)) {
foreach($articles as &$article) {
$article = ArticleContent::query()->where('article_id',$article['id'])->value('content');
}
}
var_dump($articles);
}}$ php artisan elasticsearch 周杰伦
例如：自定义高亮显示
//ONGR\ElasticsearchDSL\Highlight\Highlight ArticleModel::search($query,function($client,$body) {
$higlight = new Highlight();
$higlight->addField('content',['type' => 'plain']);
$higlight->addField('title');
$higlight->addField('tags');
$body->addHighlight($higlight);
$body->setSource(['title','tags']);
return $client->search(['index' => (new ArticleModel())->searchableAs(), 'body' => $body->toArray()]);
})->raw();复杂自定义查询回调中的$client和$body，可根据这两个包进行灵活操作
$client 官方 elasticsearch/elasticsearch package（https://packagist.org/packages/elasticsearch/elasticsearch）
$body ongr/elasticsearch-dsl package（https://packagist.org/packages/ongr/elasticsearch-dsl）
以上就是轻松集成新版Elasticsearch7.9中文搜索到Laravel7项目的详细内容，更多请关注其它相关文章！
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