elasticsearch教程（一）之基本增删改查

教程（一）之基本增删改查"/>

elasticsearch教程（一）之基本增删改查

创建索引

PUT /lib/
{"settings":{"index":{"number_of_shards":5,"number_of_replicas":1}}
}

lib：索引的名称
number_of_shards:分片,确定之后不能修改
number_of_replicas：备份的数量

//直接添加一个索引

PUT lib2

//查看索引

GET /lib/_settings

GET lib2

//查看索引索引

GET /_all/_settings

//添加文档,可以理解为向数据库添加一条记录

PUT /lib/user/1
{"fist_name":"小明","second_name":"明明","nick_name":"protty boy","age":18,"address_now":"shanghai","interests":["misic"]
}

user:索引中的类型名称
1：文档的id
使用put的形式，我们要指定id的值

如果没有指定id，使用elasticsearch来生成，这个时候使用POST方式来创建一条记录

POST /lib/user
{"fist_name":"小高","second_name":"老高","nick_name":"protty boy","age":18,"address_now":"shanghai","interests":["misic"]
}

查询文档

GET /lib/user/1

GET /lib/user/5xyfOWoB-uMbznsAgDWH

//查看部分字段

GET /lib/user/1?_source=nick_name,fist_name

修改文档
(1)指定id，用一个新的文档把以前的覆盖掉

PUT /lib/user/1
{"fist_name":"xuwenchan","second_name":"xuyi","nick_name":"protty boy","age":18,"address_now":"shanghai","interests":["misic"],"abc":"aljkfaldkj"
}

GET /lib/user/1

（2）直接修改

POST /lib/user/1/_update
{"doc":{"age":24,"school":"jiangxi"}
}

删除文档

DELETE /lib/user/1

删除索引

DELETE lib