1.安装JDK
ElasticSearch是用JAVA语言开发的,其运行需要安装JDK。
JDK (Java Development Kit) ,是整个Java的核心,包括了Java运行环境(Java Runtime Envirnment),一堆Java工具和Java基础的类库(rt.jar)。
2.安装Elasticsearch
安装好后,配置环境变量。
然后打开命令行窗口 执行命令 elasticsearch -d 启动elasticsearch
注:该命令行窗口 不要关闭。
浏览器打开 http://localhost:9200
出现以上界面,则启动成功
2.1(选装)安装Elasticsearch-Head
elasticsearch-head是一个用于浏览ElasticSearch集群并与其进行交互的Web项目
安装:打开命令行,切换到Elasticsearch-Head目录,执行以下命令
npm install
启动:打开命令行,切换到Elasticsearch-Head目录,执行以下命令
npm run start
由于跨域(Elasticsearch位于9200端口),需要添加配置: E:\elasticsearch-7.1.0\config\elasticsearch.yml中
#新添加的配置行http.cors.enabled: truehttp.cors.allow-origin: "*"
2.2安装Elasticsearch-php
使用composer安装:在项目目录下,执行以下命令
composer require elasticsearch/elasticsearch
配置php.ini的sys_temp_dir
3.1.1 节点与集群
Elastic 本质上是一个分布式数据库,允许多台服务器python基础教程协同工作,每台服务器可以运行多个 Elastic 实例。
单个 Elastic 实例称为一个节点(node)。一组节点构成一个集群(cluster)。
3.1.2 索引
在Elasticsearch中存储数据的行为就叫做索引(indexing)
在Elasticsearch中,文档归属于一种类型(type),而这些类型存在于索引(index)中类比传统关系型数据库:
Relational DB -> Databases -> Tables -> Rows -> ColumnsElasticsearch -> Indices -> Types -> Documents -> Fields
Elasticsearch集群可以包含多个索引(indices)(数据库)
每一个索引可以包含多个类型(types)(表)
每一个类型包含多个文档(documents)(行)
然后每个文档包含多个字段(Fields)(列)。
3.2.1 创建索引
$es = \Elasticsearch\ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();$params = [ 'index' => 'test_index'];$r = $es->indices()->create($params);dump($r);die;
预期结果:
array(3) { ["acknowledged"] => bool(true) ["shards_acknowledged"] => bool(true) ["index"] => string(10) "test_index"}
3.2.2 添加文档(索引文档)
$es = \Elasticsearch\ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();$params = [ 'index' => 'test_index', 'type' => 'test_type', 'id' => 100, 'body' => ['id'=>100, 'title'=>'PHP从入门到精通', 'author' => '张三']];$r = $es->index($params);dump($r);die;
预期结果:
array(8) { ["_index"] => string(10) "test_index" ["_type"] => string(9) "test_type" ["_id"] => string(3) "100" ["_version"] => int(1) ["result"] => string(7) "created" ["_shards"] => array(3) { ["total"] => int(2) ["successful"] => int(1) ["failed"] => int(0) } ["_seq_no"] => int(0) ["_primary_term"] => int(1)}
3.2.3 修改文档
$es = \Elasticsearch\ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();$params = [ 'index' => 'test_index', 'type' => 'test_type', 'id' => 100, 'body' => [ 'doc' => ['id'=>100, 'title'=>'ES从入门到精通', 'author' => '张三'] ]];$r = $es->update($params);dump($r);die;
预期结果:
array(8) { ["_index"] => string(10) "test_index" ["_type"] => string(9) "test_type" ["_id"] => string(3) "100" ["_version"] => int(2) ["result"] => string(7) "updated" ["_shards"] => array(3) { ["total"] => int(2) ["successful"] => int(1) ["failed"] => int(0) } ["_seq_no"] => int(1) ["_primary_term"] => int(1)}
3.2.4 删除文档
$es = \Elasticsearch\ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();$params = [ 'index' => 'test_index', 'type' => 'test_type', 'id' => 100,];$r = $es->delete($params);dump($r);die;
预期结果:
array(8) { ["_index"] => string(10) "test_index" ["_type"] => string(9) "test_type" ["_id"] => string(3) "100" ["_version"] => int(3) ["result"] => string(7) "deleted" ["_shards"] => array(3) { ["total"] => int(2) ["successful"] => int(1) ["failed"] => int(0) } ["_seq_no"] => int(2) ["_primary_term"] => int(1)}
联系客服