ES是开源分布式查询和分析引擎 基于Lucene Es实时查询快，格式只支持josn,开箱即用，支持分布式
ElasticSearch mysql index(索引库 = database（数据库 type = table（表 document( = row（行 field(字段 = column(列)
创建索引
PUT /lib/ { "settings":{ "index":{ "number_of_shards":3, "number_of_replicas":0 } } } PUT lib2查看索引库配置
GET /lib/_settings查看索引库所有配置
GET _all/_settings增加文档 PUT必须指定ID，POST不用，POST可以自动生成ID，
PUT /lib/user/1 { "first_name":"sb", "last_name":"niubi", "age":11, "about":"i like to collect rock albums", "interests":["music"] } POST /lib/user/ { "first_name":"sb22", "last_name":"niubi2", "age":11, "about":"i like to collect rock albums2", "interests":["music"] }查询 GET /INDEX / TYPE / (ID)
GET /lib/user/1查询部分信息
GET /lib/user/1?_source=first_name,last_name修改 以PUT的方式进行覆盖
PUT /lib/user/1 { "first_name":"fff", "last_name":"niubi", "age":11, "about":"i like to collect rock albums", "interests":["music"] }_update修改
POST /lib/user/1/_update { "doc":{ "first_name":"modify_post" } }删除文档
DELETE /lib/user/1删除索引
DELETE lib2批量获取多个文档
Get /_mget { "docs":[ { "_index":"lib", "_type":"user", "_id":1 }, { "_index":"lib", "_type":"user", "_id":2 }, { "_index":"lib", "_type":"user", "_id":3 } ] } Get /_mget { "docs":[ { "_index":"lib", "_type":"user", "_id":2, "_source":"last_name" }, { "_index":"lib", "_type":"user", "_id":3, "_source":["first_name","last_name"] } ] }索引类型相同
GET /lib/user/_mget { "docs":[ { "_id":1 }, { "_id":2 } ] } GET /lib/user/_mget { "ids":["1","2"] }Bulk API 语法 {action:{metadata} } {requstbody} 批量添加
POST /lib3/books/_bulk {"index":{"_id":1}} {"title":"java","price":66} {"index":{"_id":2}} {"title":"c","price":77} {"index":{"_id":3}} {"title":"golang","price":88}