ElasticSearch(7.2.2)-⽂档的增删改查
ElasticSearch(7.2.2)-⽂档的增删改查
cwl_java
发布于 2019-10-30 20:03:10
发布于 2019-10-30 20:03:10
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://blog.csdn.net/weixin_42528266/article/details/102798546
简介：⼿把⼿演示⽂档的增删改查
新增文档
- PUT localhost:9200/nba/_doc/1 (指定id)
{
"name":"哈登",
"team_name":"⽕箭",
"position":"得分后卫",
"play_year":"10",
"jerse_no":"13"
}{
"_index": "nba",
"_type": "_doc",
"_id": "1",
"_version": 1,
"result": "created",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
},
"_seq_no": 0,
"_primary_term": 1
}- POST localhost:9200/nba/_doc (不指定id)
{
"name":"库⾥",
"team_name":"勇⼠",
"position":"组织后卫",
"play_year":"10",
"jerse_no":"30"
}{
"_index": "nba",
"_type": "_doc",
"_id": "cVi582sB6wrnBnZnFqog",
"_version": 1,
"result": "created",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
},
"_seq_no": 1,
"_primary_term": 1
}⾃动创建索引
- 查看auto_create_index开关状态，请求http://localhost:9200/_cluster/settings
- 当索引不存在并且auto_create_index为true的时候，新增⽂档时会⾃动创建索引
- 修改auto_create_index状态
- PUT localhost:9200/_cluster/settings
{
"persistent": {
"action.auto_create_index": "false"
}
}{
"acknowledged": true,
"persistent": {
"action": {
"auto_create_index": "false"
}
},
"transient": {}
}- 当auto_create_index=false时，指定⼀个不存在的索引，新增⽂档
- PUT localhost:9200/wnba/_doc/1
{
"name":"杨超越",
"team_name":"梦之队",
"position":"组织后卫",
"play_year":"0",
"jerse_no":"18"
} {
"error": {
"root_cause": [{
"type": "index_not_found_exception",
"reason": "no such index [wnba]",
"resource.type": "index_expression",
"resource.id": "wnba",
"index_uuid": "_na_",
"index": "wnba"
}],
"type": "index_not_found_exception",
"reason": "no such index [wnba]",
"resource.type": "index_expression",
"resource.id": "wnba",
"index_uuid": "_na_",
"index": "wnba"
},
"status": 404
}- 当auto_create_index=true时，指定⼀个不存在的索引，新增⽂档
{
"name":"杨超越",
"team_name":"梦之队",
"position":"组织后卫",
"play_year":"0",
"jerse_no":"18"
}{
"_index": "wnba",
"_type": "_doc",
"_id": "1",
"_version": 1,
"result": "created",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
},
"_seq_no": 0,
"_primary_term": 1
}- 指定操作类型
- PUT localhost:9200/nba/_doc/1?op_type=create
{
"name":"哈登",
"team_name":"⽕箭",
"position":"得分后卫",
"play_year":"10",
"jerse_no":"13"
}{
"error": {
"root_cause": [{
"type": "version_conflict_engine_exception",
"reason": "[1]: version conflict, document already
exists(current version[2])
",
"index_uuid": "oPdc9qAjRO-IlzPfymnpkg",
"shard": "0",
"index": "nba"
}],
"type": "version_conflict_engine_exception",
"reason": "[1]: version conflict, document already exists
(current version[2])
",
"index_uuid": "oPdc9qAjRO-IlzPfymnpkg",
"shard": "0",
"index": "nba"
},
"status": 409
}查看⽂档
- GET localhost:9200/nba/_doc/1
{
"_index": "nba",
"_type": "_doc",
"_id": "1",
"_version": 3,
"_seq_no": 3,
"_primary_term": 1,
"found": true,
"_source": {
"name": "哈登",
"team_name": "⽕箭",
"position": "得分后卫",
"play_year": "10",
"jerse_no": "13"
}
}查看多个文档
- POST localhost:9200/_mget
{
"docs": [{
"_index": "nba",
"_type": "_doc",
"_id": "1"
},
{
"_index": "nba",
"_type": "_doc",
"_id": "2"
}
]
} {
"docs": [{
"_index": "nba",
"_type": "_doc",
"_id": "1",
"_version": 3,
"_seq_no": 3,
"_primary_term": 1,
"found": true,
"_source": {
"name": "哈登",
"team_name": "⽕箭",
"position": "得分后卫",
"play_year": "10",
"jerse_no": "13"
}
},
{
"_index": "nba",
"_type": "_doc",
"_id": "2",
"found": false
}
]
}- POST localhost:9200/nba/_mget
{
"docs": [{
"_type": "_doc",
"_id": "1"
},
{
"_type": "_doc",
"_id": "2"
}
]
}- POST localhost:9200/nba/doc/mget
{
"docs": [{
"_id": "1"
},
{
"_id": "2"
}
]
}- GET localhost:9200/nba/doc/mget
{
"ids" : ["1", "2"]
}修改⽂档
- 根据提供的⽂档⽚段更新数据
- POST localhost:9200/nba/_update/1
{
"doc": {
"name": "哈登",
"team_name": "⽕箭",
"position": "双能卫",
"play_year": "10",
"jerse_no": "13"
}
}- 向_source字段，增加⼀个字段
- POST localhost:9200/nba/_update/1
{
"script": "ctx._source.age = 18"
}- 从_source字段，删除⼀个字段
- POST localhost:9200/nba/_update/1
{
"script": "ctx._source.remove(\"age\")"
}- 根据参数值，更新指定⽂档的字段
- POST localhost:9200/nba/_update/1
{
"script": {
"source": "ctx._source.age += params.age",
"params": {
"age": 4
}
}
}- upsert 当指定的⽂档不存在时，upsert参数包含的内容将会被插⼊到索引中，作为⼀个新⽂档；如果指定的⽂档存在，ElasticSearch引擎将会执⾏指定的更新逻辑。
- POST localhost:9200/nba/_update/3
{
"script": {
"source": "ctx._source.allstar += params.allstar",
"params": {
"allstar": 4
}
},
"upsert": {
"allstar": 1
}
}删除⽂档
- DELETE localhost:9200/nba/_doc/1
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原始发表：2019-10-29 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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