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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
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一、安装通过composer安装
composer require 'elasticsearch/elasticsearch'二、使用
创建ES类
require ‘vendor/autoload.php’;
//如果未设置密码
$es = ElasticsearchClientBuilder::create()->setHosts([‘xxx.xxx.xxx.xxx’])->build();//如果es设置了密码
三、新建ES数据库
$es = ElasticsearchClientBuilder::create()->setHosts([‘http://username:password@xxx.xxx.xxx.xxx:9200’])->build()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
'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
'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
'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
'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
'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' ] ] ] ] ] ];$data = KaTeX parse error: Expected 'EOF', got '&' at position 4: es-&̲gt;search(params);
九、测试代码
var_dump($data);基于Laravel环境，包含删除数据库，删除文档等操作
class EsDemo
{
private $EsClient = null;
private $faker = null;
private $index = ‘autofelix_db’;
private $type = ‘autofelix_table’;public function __construct(Faker $faker)
{
$this->faker = $faker;
}public function generateDoc( num∗/publicfunctiongenerateDoc(num = 100) {
foreach (range(1,$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’ => $this->index,
‘type’ => KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;type, '…id
];
return KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…params);
}
public function getDocs($ids) {
$params = [
‘index’ => $this->index,
‘type’ => $this->type,
‘body’ => [‘ids’ => $ids]
];
return KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…params);
}
public function getDoc($id) {
$params = [
‘index’ => $this->index,
‘type’ => KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;type, '…id
];
return KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…params);
}
public function updateDoc($id) {
$params = [
‘index’ => $this->index,
‘type’ => KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;type, '…id,
‘body’ => [
‘doc’ => [
‘first_name’ => ‘张’,
‘last_name’ => ‘三’,
‘age’ => 99
]
]
];
return KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…params);
}
public function putDoc($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
];
KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…params);
}
public function delAllIndex() {
$indexList = KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;esStatus()['…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
]
]
];
KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…params);
}
public function checkIndexExists() {
$params = [
‘index’ => $this->index
];
return KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…params);
}
public function delIndex() {
$params = [
‘index’ => KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;index ]; i…this->checkIndexExists()) {
KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…params);
}
}
public function getMapping() {
$params = [
‘index’ => $this->index
];
return KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…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’
]
]
]
]
];
KaTeX parse error: Expected 'EOF', got '&' at position 6: this-&̲gt;EsClient->…params);
$this->generateDoc();
}
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