〝 古人学问遗无力,少壮功夫老始成 〞
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通过composer安装
composer require 'elasticsearch/elasticsearch'
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: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
<?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);
<?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);
<?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);
<?php $data = $es->search(); var_dump($data);
<?php $params = [ 'index' => 'autofelix_db', 'type' => 'autofelix_table', 'id' => //你插入数据时候的id ]; $data = $es->get($params);
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);
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; /** * ES 的 php 实测代码 */ class EsDemo { private $EsClient = null; private $faker = null; /** * 为了简化测试,本测试默认只操作一个Index,一个Type */ private $index = 'autofelix_db'; private $type = 'autofelix_table'; public function __construct(Faker $faker) { /** * 实例化 ES 客户端 */ $this->EsClient = ClientBuilder::create()->setHosts(['xxx.xxx.xxx.xxx'])->build(); /** * 这是一个数据生成库 */ $this->faker = $faker; } /** * 批量生成文档 * @param $num */ public function generateDoc($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) ]); } } /** * 删除一个文档 * @param $id * @return array */ public function delDoc($id) { $params = [ 'index' => $this->index, 'type' => $this->type, 'id' =>$id ]; return $this->EsClient->delete($params); } /** * 搜索文档,query是查询条件 * @param array $query * @param int $from * @param int $size * @return array */ public function search($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); } /** * 一次获取多个文档 * @param $ids * @return array */ public function getDocs($ids) { $params = [ 'index' => $this->index, 'type' => $this->type, 'body' => ['ids' => $ids] ]; return $this->EsClient->mget($params); } /** * 获取单个文档 * @param $id * @return array */ public function getDoc($id) { $params = [ 'index' => $this->index, 'type' => $this->type, 'id' =>$id ]; return $this->EsClient->get($params); } /** * 更新一个文档 * @param $id * @return array */ public function updateDoc($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); } /** * 添加一个文档到 Index 的Type中 * @param array $body * @return void */ public function putDoc($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); } /** * 删除所有的 Index */ public function delAllIndex() { $indexList = $this->esStatus()['indices']; foreach ($indexList as $item => $index) { $this->delIndex(); } } /** * 获取 ES 的状态信息,包括index 列表 * @return array */ public function esStatus() { return $this->EsClient->indices()->stats(); } /** * 创建一个索引 Index (非关系型数据库里面那个索引,而是关系型数据里面的数据库的意思) * @return void */ public function createIndex() { $this->delIndex(); $params = [ 'index' => $this->index, 'body' => [ 'settings' => [ 'number_of_shards' => 2, 'number_of_replicas' => 0 ] ] ]; $this->EsClient->indices()->create($params); } /** * 检查Index 是否存在 * @return bool */ public function checkIndexExists() { $params = [ 'index' => $this->index ]; return $this->EsClient->indices()->exists($params); } /** * 删除一个Index * @return void */ public function delIndex() { $params = [ 'index' => $this->index ]; if ($this->checkIndexExists()) { $this->EsClient->indices()->delete($params); } } /** * 获取Index的文档模板信息 * @return array */ public function getMapping() { $params = [ 'index' => $this->index ]; return $this->EsClient->indices()->getMapping($params); } /** * 创建文档模板 * @return void */ 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(); } }