ElasticSearch的常用增删改查DSL和代码

ElasticSearch的常见操作包括索引文档、查询文档、更新文档和删除文档。以下是对应的ElasticSearch DSL和Python代码示例。

索引文档

ElasticSearch DSL:

PUT /index/type/id
{
  "field1": "value1",
  "field2": "value2"
}

Python代码:

from elasticsearch import Elasticsearch
 
es = Elasticsearch()
 
doc = {
    'field1': 'value1',
    'field2': 'value2'
}
 
es.index(index="index", doc_type="type", id="id", body=doc)

查询文档

ElasticSearch DSL:

GET /index/type/_search
{
  "query": {
    "match": {
      "field1": "value1"
    }
  }
}

Python代码:

from elasticsearch import Elasticsearch
 
es = Elasticsearch()
 
query = {
    "query": {
        "match": {
            "field1": "value1"
        }
    }
}
 
response = es.search(index="index", doc_type="type", body=query)

更新文档

ElasticSearch DSL:

POST /index/type/id/_update
{
  "doc": {
    "field1": "new_value1"
  }
}

Python代码:

from elasticsearch import Elasticsearch
 
es = Elasticsearch()
 
doc = {
    "doc": {
        "field1": "new_value1"
    }
}
 
es.update(index="index", doc_type="type", id="id", body=doc)

删除文档

ElasticSearch DSL:

DELETE /index/type/id

Python代码:

from elasticsearch import Elasticsearch
 
es = Elasticsearch()
 
es.delete(index="index", doc_type="type", id="id")

以上代码提供了ElasticSearch的基本增删改查操作，并且展示了如何在Python中使用Elasticsearch库执行这些操作。