shell窗口运行curl命令执行DSL查询语句

最新推荐文章于 2025-06-22 04:01:46 发布

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本文介绍了Elasticsearch的基本操作，包括检查群集健康状态、管理索引、文档的增删改查及批量操作等。此外还展示了如何通过查询获取数据、更新文档以及使用脚本进行复杂的数据修改。

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#检查群集运行状况
curl -X GET "localhost:9200/_cat/health?v"

#获得群集中的节点列表
curl -X GET "localhost:9200/_cat/nodes?v"

#列出所有索引
curl -X GET "localhost:9200/_cat/indices?v"

#创建索引并查看
curl -X PUT "localhost:9200/customer?pretty"
curl -X GET "localhost:9200/_cat/indices?v"

#指定ID插入数据并查看（如果没有该索引则默认自动创建）
curl -X PUT "localhost:9200/customer/_doc/1?pretty" -H 'Content-Type: application/json' -d'
{
  "name": "John Doe"
}
'
curl -X GET "localhost:9200/customer/_doc/1?pretty"
#删除索引并查看
curl -X DELETE "localhost:9200/customer?pretty"
curl -X GET "localhost:9200/_cat/indices?v"

#不指定ID插入数据会自动分配ID
curl -X POST "localhost:9200/customer/_doc?pretty" -H 'Content-Type: application/json' -d'
{
  "name": "Jane Doe"
}
'

#替换文档版本号会递增，若该ID尚未使用则相当于插入数据
curl -X GET "localhost:9200/customer/_doc/1?pretty"
curl -X PUT "localhost:9200/customer/_doc/1?pretty" -H 'Content-Type: application/json' -d'
{
  "name": "John Doe"
}
'
curl -X GET "localhost:9200/customer/_doc/1?pretty"
curl -X PUT "localhost:9200/customer/_doc/1?pretty" -H 'Content-Type: application/json' -d'
{
  "name": "Jane Doe"
}
'
curl -X GET "localhost:9200/customer/_doc/1?pretty"
curl -X PUT "localhost:9200/customer/_doc/2?pretty" -H 'Content-Type: application/json' -d'
{
  "name": "Jane Doe"
}
'

#通过将名称字段更改为“Jane Doe”来更新以前的文档（ID为1）
curl -X GET "localhost:9200/customer/_doc/1?pretty"
curl -X POST "localhost:9200/customer/_doc/1/_update?pretty" -H 'Content-Type: application/json' -d'
{
  "doc": { "name": "Jane Doe" }
}
'
curl -X GET "localhost:9200/customer/_doc/1?pretty"
#通过将名称字段更改为“Jane Doe”来更新我们以前的文档（ID为1），同时向其添加年龄字段
curl -X POST "localhost:9200/customer/_doc/1/_update?pretty" -H 'Content-Type: application/json' -d'
{
  "doc": { "name": "Jane Doe", "age": 20 }
}
'
curl -X GET "localhost:9200/customer/_doc/1?pretty"
#使用脚本将年龄增加5
curl -X POST "localhost:9200/customer/_doc/1/_update?pretty" -H 'Content-Type: application/json' -d'
{
  "script" : "ctx._source.age += 5"
}
'
curl -X GET "localhost:9200/customer/_doc/1?pretty"

#删除ID为2的文档
curl -X GET "localhost:9200/customer/_doc/2?pretty"
curl -X DELETE "localhost:9200/customer/_doc/2?pretty"
curl -X GET "localhost:9200/customer/_doc/2?pretty"

#批处理
curl -X GET "localhost:9200/customer/_doc/1?pretty"
curl -X GET "localhost:9200/customer/_doc/2?pretty"
curl -X POST "localhost:9200/customer/_doc/_bulk?pretty" -H 'Content-Type: application/json' -d'
{"index":{"_id":"1"}}
{"name": "John Doe" }
{"index":{"_id":"2"}}
{"name": "Jane Doe" }
'
curl -X GET "localhost:9200/customer/_doc/1?pretty"
curl -X GET "localhost:9200/customer/_doc/2?pretty"
curl -X POST "localhost:9200/customer/_doc/_bulk?pretty" -H 'Content-Type: application/json' -d'
{"update":{"_id":"1"}}
{"doc": { "name": "John Doe becomes Jane Doe" } }
{"delete":{"_id":"2"}}
'
curl -X GET "localhost:9200/customer/_doc/1?pretty"
curl -X GET "localhost:9200/customer/_doc/2?pretty"

#q=*匹配索引中的全部文档
curl -X GET "localhost:9200/customer/_search?q=*&pretty"
#JSON查询体匹配索引中的全部文档
curl -X GET "localhost:9200/customer/_search" -H 'Content-Type: application/json' -d'
{
  "query": { "match_all": {} }
}
'
#size指定查询文档大小，若未指定，则默认为10
curl -X GET "localhost:9200/customer/_search" -H 'Content-Type: application/json' -d'
{
  "query": { "match_all": {} },
  "size": 1
}
'
#from参数(基于0)指定从哪个文档索引开始，size参数指定从from参数开始返回多少文档
#这个特性在实现搜索结果分页时非常有用！注意，如果未指定from，则默认为0
curl -X GET "localhost:9200/customer/_search" -H 'Content-Type: application/json' -d'
{
  "query": { "match_all": {} },
  "from": 10,
  "size": 10
}
'
#此示例执行match_all并按帐户余额降序对结果进行排序，并返回前10个（默认大小）文档
curl -X GET "localhost:9200/bank/_search" -H 'Content-Type: application/json' -d'
{
  "query": { "match_all": {} },
  "sort": { "balance": { "order": "desc" } }
}
'

以上都是基本操作,更复杂的操作有待更新...