目录
- 一、安装
- 二、使用
- 三、新建ES数据库
- 四、创建表
- 五、插入数据
- 六、 查询所有数据
- 七、查询单条数据
- 八、搜索
- 九、测试代码
〝 古人学问遗无力,少壮功夫老始成 〞
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一、安装
通过composer安装
composer require 'elasticsearch/elasticsearch'
二、使用
创建ES类
<?PHP
require 'vendor/autoload.php';
//如果未设置密码
$es = \Elasticsearch\ClientBuilder::create()->setHosts(['xxx.xxx.xxx.xxx'])->build();
//如果es设置了密码
$es = \Elasticsearch\ClientBuilder::create()->setHosts(['Http://username:[email protected]:9200'])->build()
三、新建ES数据库
index 对应关系型数据(以下简称Mysql)里面的数据库,而不是对应mysql里面的索引
<?php
$params = [
'index' => 'autofelix_db', #index的名字不能是大写和下划线开头
'body' => [
'settings' => [
'number_of_shards' => 5,
'number_of_replicas' => 0
]
]
];
$es->indices()->create($params);
四、创建表
- 在Mysql里面,光有了数据库还不行,还需要建立表,ES也是一样的
- ES中的type对应MySQL里面的表
- es6以前,一个index有多个type,就像MySQL中一个数据库有多个表一样
- 但是ES6以后,每个index只允许一个type
- 在定义字段的时候,可以看出每个字段可以定义单独的类型
- 在first_name中还自定义了 分词器 ik,这是个插件,是需要单独安装的
<?php
$params = [
'index' => 'autofelix_db',
'type' => 'autofelix_table',
'body' => [
'mytype' => [
'_source' => [
'enabled' => true
],
'properties' => [
'id' => [
'type' => 'integer'
],
'first_name' => [
'type' => 'text',
'analyzer' => 'ik_max_word'
],
'last_name' => [
'type' => 'text',
'analyzer' => 'ik_max_word'
],
'age' => [
'type' => 'integer'
]
]
]
]
];
$es->indices()->putMapping($params);
五、插入数据
- 现在数据库和表都有了,可以往里面插入数据了
- 在ES里面的数据叫文档
- 可以多插入一些数据,等会可以模拟搜索功能
<?php
$params = [
'index' => 'autofelix_db',
'type' => 'autofelix_table',
//'id' => 1, #可以手动指定id,也可以不指定随机生成
'body' => [
'first_name' => '飞',
'last_name' => '兔',
'age' => 26
]
];
$es->index($params);
六、 查询所有数据
<?php
$data = $es->search();
var_dump($data);
七、查询单条数据
- 如果你在插入数据的时候指定了id,就可以查询的时候加上id
- 如果你在插入的时候未指定id,系统将会自动生成id,你可以通过查询所有数据后查看其id
<?php
$params = [
'index' => 'autofelix_db',
'type' => 'autofelix_table',
'id' => //你插入数据时候的id
];
$data = $es->get($params);
八、搜索
ES精髓的地方就在于搜索
<?php
$params = [
'index' => 'autofelix_db',
'type' => 'autofelix_table',
'body' => [
'query' => [
'constant_score' => [ //非评分模式执行
'filter' => [ //过滤器,不会计算相关度,速度快
'term' => [ //精确查找,不支持多个条件
'first_name' => '飞'
]
]
]
]
]
];
$data = $es->search($params);
var_dump($data);
九、测试代码
基于Laravel环境,包含删除数据库,删除文档等操作
<?php
use Elasticsearch\ClientBuilder;
use Faker\Generator as Faker;
class EsDemo
{
private $EsClient = null;
private $faker = null;
private $index = 'autofelix_db';
private $type = 'autofelix_table';
public function __construct(Faker $faker)
{
$this->EsClient = ClientBuilder::create()->setHosts(['xxx.xxx.xxx.xxx'])->build();
$this->faker = $faker;
}
public function generateDoc($num = 100) {
foreach (range(1,$num) as $item) {
$this->putDoc([
'first_name' => $this->faker->name,
'last_name' => $this->faker->name,
'age' => $this->faker->numberBetween(20,80)
]);
}
}
public function delDoc($id) {
$params = [
'index' => $this->index,
'type' => $this->type,
'id' =>$id
];
return $this->EsClient->delete($params);
}
public function search($query = [], $from = 0, $size = 5) {
// $query = [
// 'query' => [
// 'bool' => [
// 'must' => [
// 'match' => [
// 'first_name' => 'Cronin',
// ]
// ],
// 'filter' => [
// 'range' => [
// 'age' => ['gt' => 76]
// ]
// ]
// ]
//
// ]
// ];
$params = [
'index' => $this->index,
// 'index' => 'm*', #index 和 type 是可以模糊匹配的,甚至这两个参数都是可选的
'type' => $this->type,
'_source' => ['first_name','age'], // 请求指定的字段
'body' => array_merge([
'from' => $from,
'size' => $size
],$query)
];
return $this->EsClient->search($params);
}
public function getDocs($ids) {
$params = [
'index' => $this->index,
'type' => $this->type,
'body' => ['ids' => $ids]
];
return $this->EsClient->mget($params);
}
public function getDoc($id) {
$params = [
'index' => $this->index,
'type' => $this->type,
'id' =>$id
];
return $this->EsClient->get($params);
}
public function updateDoc($id) {
$params = [
'index' => $this->index,
'type' => $this->type,
'id' =>$id,
'body' => [
'doc' => [
'first_name' => '张',
'last_name' => '三',
'age' => 99
]
]
];
return $this->EsClient->update($params);
}
public function putDoc($body = []) {
$params = [
'index' => $this->index,
'type' => $this->type,
// 'id' => 1, #可以手动指定id,也可以不指定随机生成
'body' => $body
];
$this->EsClient->index($params);
}
public function delAllIndex() {
$indexList = $this->esStatus()['indices'];
foreach ($indexList as $item => $index) {
$this->delIndex();
}
}
public function esStatus() {
return $this->EsClient->indices()->stats();
}
public function createIndex() {
$this->delIndex();
$params = [
'index' => $this->index,
'body' => [
'settings' => [
'number_of_shards' => 2,
'number_of_replicas' => 0
]
]
];
$this->EsClient->indices()->create($params);
}
public function checkIndexExists() {
$params = [
'index' => $this->index
];
return $this->EsClient->indices()->exists($params);
}
public function delIndex() {
$params = [
'index' => $this->index
];
if ($this->checkIndexExists()) {
$this->EsClient->indices()->delete($params);
}
}
public function getMapping() {
$params = [
'index' => $this->index
];
return $this->EsClient->indices()->getMapping($params);
}
public function createMapping() {
$this->createIndex();
$params = [
'index' => $this->index,
'type' => $this->type,
'body' => [
$this->type => [
'_source' => [
'enabled' => true
],
'properties' => [
'id' => [
'type' => 'integer'
],
'first_name' => [
'type' => 'text',
'analyzer' => 'ik_max_word'
],
'last_name' => [
'type' => 'text',
'analyzer' => 'ik_max_word'
],
'age' => [
'type' => 'integer'
]
]
]
]
];
$this->EsClient->indices()->putMapping($params);
$this->generateDoc();
}
}
到此这篇关于php操作ElasticSearch搜索引擎流程详解的文章就介绍到这了。
标签:index,name,public,详解,params,ElasticSearch,php,type,id
From: https://www.cnblogs.com/dituirenwu/p/17093951.html