number_of_shards 分片
number_of_replicas备份份数
PUT /lib/ #lib为索引，这里创建一个索引
{
"settings": {
"index":{
"number_of_shards":5,
"number_of_replicas": 1
}
}
}
运行结果：
{
"acknowledged" : true,
"shards_acknowledged" : true,
"index" : "lib"
}
GET /lib
{
"lib" : {
"aliases" : { },
"mappings" : { },
"settings" : {
"index" : {
"creation_date" : "1554167098772",
"number_of_shards" : "5",
"number_of_replicas" : "1",
"uuid" : "ZEo4nxKuRHCmM21Jk5Ip2w",
"version" : {
"created" : "6070099"
},
"provided_name" : "lib"
}
}
}
}
GET /lib/_settings
{
"lib" : {
"settings" : {
"index" : {
"creation_date" : "1554167098772",
"number_of_shards" : "5",
"number_of_replicas" : "1",
"uuid" : "ZEo4nxKuRHCmM21Jk5Ip2w",
"version" : {
"created" : "6070099"
},
"provided_name" : "lib" //索引
}
}
}
}
PUT /lib2
{
"acknowledged" : true,
"shards_acknowledged" : true,
"index" : "lib2"
}
GET /lib2
{
"lib2" : {
"aliases" : { },
"mappings" : { },
"settings" : {
"index" : {
"creation_date" : "1554167422942",
"number_of_shards" : "5",
"number_of_replicas" : "1",
"uuid" : "BaN-ijHYQJeRvc0PE2o08w",
"version" : {
"created" : "6070099"
},
"provided_name" : "lib2"
}
}
}
}
GET /_all/_settings
......
DELETE /lib/ //删除索引
{
"acknowledged" : true
}
指定id用put 不指定id用post
POST /lib/user/
{
"first_name": "Cao",
"last_name": "min",
"age": 23
}
{
"_index" : "lib",
"_type" : "user",
"_id" : "9WCv22kB5eS_NzcvF_kl",
"_version" : 1,
"result" : "created",
"_shards" : {
"total" : 2,
"successful" : 2,
"failed" : 0
},
"_seq_no" : 0,
"_primary_term" : 1
}
查询文档
GET /lib/user/9WCv22kB5eS_NzcvF_kl
{
"_index" : "lib",
"_type" : "user",
"_id" : "9WCv22kB5eS_NzcvF_kl",
"_version" : 1,
"_seq_no" : 0,
"_primary_term" : 1,
"found" : true,
"_source" : {
"first_name" : "Cao",
"last_name" : "min",
"age" : 23
}
}
查看id为9WCv22kB5eS_NzcvF_kl的first_name和age
GET /lib/user/9WCv22kB5eS_NzcvF_kl?_source=first_name,age
{
"_index" : "lib",
"_type" : "user",
"_id" : "9WCv22kB5eS_NzcvF_kl",
"_version" : 1,
"_seq_no" : 0,
"_primary_term" : 1,
"found" : true,
"_source" : {
"first_name" : "Cao",
"age" : 23
}
}
更新文档
索引：lib
类型：user
id： 9WCv22kB5eS_NzcvF_kl
id相同的覆盖
使用覆盖方式更新(未覆盖的数据会丢失)
PUT /lib/user/9WCv22kB5eS_NzcvF_kl
{
"age" : 30
}
{
"_index" : "lib",
"_type" : "user",
"_id" : "9WCv22kB5eS_NzcvF_kl",
"_version" : 2,
"result" : "updated",
"_shards" : {
"total" : 2,
"successful" : 2,
"failed" : 0
},
"_seq_no" : 1,
"_primary_term" : 1
}
GET /lib/user/9WCv22kB5eS_NzcvF_kl
{
"_index" : "lib",
"_type" : "user",
"_id" : "9WCv22kB5eS_NzcvF_kl",
"_version" : 2,
"_seq_no" : 1,
"_primary_term" : 1,
"found" : true,
"_source" : {
"age" : 30
}
}
post方式更新(未指定的原有数据不会丢失)
POST /lib/user/9WCv22kB5eS_NzcvF_kl/_update
{
"doc": {
"sex": "female"
}
}
{
"_index" : "lib",
"_type" : "user",
"_id" : "9WCv22kB5eS_NzcvF_kl",
"_version" : 6,
"result" : "updated",
"_shards" : {
"total" : 2,
"successful" : 2,
"failed" : 0
},
"_seq_no" : 5,
"_primary_term" : 1
}
GET /lib/user/9WCv22kB5eS_NzcvF_kl
{
"_index" : "lib",
"_type" : "user",
"_id" : "9WCv22kB5eS_NzcvF_kl",
"_version" : 6,
"_seq_no" : 5,
"_primary_term" : 1,
"found" : true,
"_source" : {
"age" : 28,
"sex" : "female"
}
}
获得所有信息
GET /_all/_settings
Multi-Get批量查询:
PUT /index/a/1
{
"name": "ZhangSan",
"age": 18
}
PUT /index/a/3
{
"name": "LiSi",
"age": 20
}
//使用mget通过索引类型和id获取相关信息
GET /_mget //这里获得了2个文档
{
"docs":[
{
"_index": "index",
"_type": "a",
"_id": "1"
},
{
"_index": "index",
"_type": "a",
"_id": "3"
}
]
}
获得指定的字段
第一个只获取name字段，第二个只获取name、age字段
GET /_mget
{
"docs":[
{
"_index": "index",
"_type": "a",
"_id": "1",
"_source":"name"
},
{
"_index": "index",
"_type": "a",
"_id": "3",
"_source":["name", "age"]
}
]
}
或者简化写法
GET /index/a/_mget
{
"docs":[
{
"_id": "1",
"_source":"name"
},
{
"_id": "3",
"_source":["name", "age"]
}
]
}
或者
GET /index/a/_mget
{
"ids":["1", "3"]
}
结果：
{
"docs" : [
{
"_index" : "index",
"_type" : "a",
"_id" : "1",
"_version" : 1,
"_seq_no" : 0,
"_primary_term" : 1,
"found" : true,
"_source" : {
"name" : "ZhangSan"
}
},
{
"_index" : "index",
"_type" : "a",
"_id" : "3",
"_version" : 1,
"_seq_no" : 0,
"_primary_term" : 1,
"found" : true,
"_source" : {
"name" : "LiSi",
"age" : 20
}
}
]
}
原文链接：https://www.qiquanji.com/post/8179.html
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