Elastic Search之入门

Elastic Search 安装运行

1.下载Elastic Search

　　从https://www.elastic.co/downloads/elasticsearch步骤下载Elastic Search压缩包。

2.运行Elastic Search

　　bin/elasticsearch

3.运行Elastic Search命令

　　运行curl 'http://localhost:9200/?pretty'，返回以下结果，说明Elastic Search已经启动

{
  "name" : "1csm-zX",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "WqIVbt2fRzq4wEQtlY2CXA",
  "version" : {
    "number" : "6.2.3",
    "build_hash" : "c59ff00",
    "build_date" : "2018-03-13T10:06:29.741383Z",
    "build_snapshot" : false,
    "lucene_version" : "7.2.1",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

Elastic Search第一个实例

　　Elastic Search的存储是面向文档的，文档是一个json对象。同一类型的文档存储在同一个type中，type又是归属与一个index的。将ES中的术语与传统数据库类比如下：

传统数据库	DataBase	table	column
ES	indices	type	field

　　

新增文档

curl -H "Content-Type: application/json" -XPUT http://localhost:9200/myteam/employ/1 -d '{"name":"jack","age":30,"info":"Ilove you"}'

　　我们知道，es文档是通过indices和type进行组织的，myteam就是我们指定的indices；employ就是我们指定的type。

原始语法

curl -H "Content-Type: application/json" -XPUT http://localhost:9200/{index}/{type}/1 -d '{"name":"jack","age":30,"info":"Ilove you"}'

检索文档

　　curl -XGET 'http://localhost:9200/myteam/employ/1'