【elasticsearch】8、search api

2020-03-11  本文已影响0人  cutieagain

search api

指定查询的索引

语法 范围
/_search 集群上所有的索引
/index1/_search index1
/index1,index2/_search index1和index2
/index*/_search 以index开头的索引

uri查询

request body查询

request body

搜索response

搜索response

搜索的相关性 relevance

搜索的相关性 relevance

web搜索

电商搜索

衡量相关性

#URI Query
GET kibana_sample_data_ecommerce/_search?q=customer_first_name:Eddie
GET kibana*/_search?q=customer_first_name:Eddie
GET /_all/_search?q=customer_first_name:Eddie


#REQUEST Body
POST kibana_sample_data_ecommerce/_search
{
    "profile": true,
    "query": {
        "match_all": {}
    }
}

uri search 通过uri query 实现搜索

get /movie/_search?q=2012&df=title&sort=year:desc&from=0&size=10&timeou=1s
{
"profile":true
}

query string syntax

uri 查询示例

#基本查询
GET /movies/_search?q=2012&df=title&sort=year:desc&from=0&size=10&timeout=1s

#带profile
GET /movies/_search?q=2012&df=title
{
    "profile":"true"
}


#泛查询，正对_all,所有字段
GET /movies/_search?q=2012
{
    "profile":"true"
}

#指定字段
GET /movies/_search?q=title:2012&sort=year:desc&from=0&size=10&timeout=1s
{
    "profile":"true"
}


# 查找美丽心灵, Mind为泛查询
GET /movies/_search?q=title:Beautiful Mind
{
    "profile":"true"
}

# 泛查询
GET /movies/_search?q=title:2012
{
    "profile":"true"
}

#使用引号，Phrase查询
GET /movies/_search?q=title:"Beautiful Mind"
{
    "profile":"true"
}

#分组，Bool查询
GET /movies/_search?q=title:(Beautiful Mind)
{
    "profile":"true"
}


#布尔操作符
# 查找美丽心灵
GET /movies/_search?q=title:(Beautiful AND Mind)
{
    "profile":"true"
}

# 查找美丽心灵
GET /movies/_search?q=title:(Beautiful NOT Mind)
{
    "profile":"true"
}

# 查找美丽心灵 %2B  == +
GET /movies/_search?q=title:(Beautiful %2BMind)
{
    "profile":"true"
}


#范围查询 ,区间写法
GET /movies/_search?q=title:beautiful AND year:[2002 TO 2018%7D
{
    "profile":"true"
}


#通配符查询
GET /movies/_search?q=title:b*
{
    "profile":"true"
}

#模糊匹配&近似度匹配
GET /movies/_search?q=title:beautifl~1
{
    "profile":"true"
}

GET /movies/_search?q=title:"Lord Rings"~2
{
    "profile":"true"
}

request body search

#ignore_unavailable=true，可以忽略尝试访问不存在的索引“404_idx”导致的报错
#查询movies分页
POST /movies,404_idx/_search?ignore_unavailable=true
{
  "profile": true,
    "query": {
        "match_all": {}
    }
}

POST /kibana_sample_data_ecommerce/_search
{
  "from":10,
  "size":20,
  "query":{
    "match_all": {}
  }
}


#对日期排序
POST kibana_sample_data_ecommerce/_search
{
  "sort":[{"order_date":"desc"}],
  "query":{
    "match_all": {}
  }

}

#source filtering
POST kibana_sample_data_ecommerce/_search
{
  "_source":["order_date"],
  "query":{
    "match_all": {}
  }
}


#脚本字段
GET kibana_sample_data_ecommerce/_search
{
  "script_fields": {
    "new_field": {
      "script": {
        "lang": "painless",
        "source": "doc['order_date'].value+'hello'"
      }
    }
  },
  "query": {
    "match_all": {}
  }
}


POST movies/_search
{
  "query": {
    "match": {
      "title": "last christmas"
    }
  }
}

POST movies/_search
{
  "query": {
    "match": {
      "title": {
        "query": "last christmas",
        "operator": "and"
      }
    }
  }
}

POST movies/_search
{
  "query": {
    "match_phrase": {
      "title":{
        "query": "one love"

      }
    }
  }
}

POST movies/_search
{
  "query": {
    "match_phrase": {
      "title":{
        "query": "one love",
        "slop": 1

      }
    }
  }
}

query string & simple query string

Query & Simple Query String Query

PUT /users/_doc/1
{
  "name":"Ruan Yiming",
  "about":"java, golang, node, swift, elasticsearch"
}

PUT /users/_doc/2
{
  "name":"Li Yiming",
  "about":"Hadoop"
}


POST users/_search
{
  "query": {
    "query_string": {
      "default_field": "name",
      "query": "Ruan AND Yiming"
    }
  }
}


POST users/_search
{
  "query": {
    "query_string": {
      "fields":["name","about"],
      "query": "(Ruan AND Yiming) OR (Java AND Elasticsearch)"
    }
  }
}


#Simple Query 默认的operator是 Or
POST users/_search
{
  "query": {
    "simple_query_string": {
      "query": "Ruan AND Yiming",
      "fields": ["name"]
    }
  }
}


POST users/_search
{
  "query": {
    "simple_query_string": {
      "query": "Ruan Yiming",
      "fields": ["name"],
      "default_operator": "AND"
    }
  }
}


GET /movies/_search
{
    "profile": true,
    "query":{
        "query_string":{
            "default_field": "title",
            "query": "Beafiful AND Mind"
        }
    }
}


# 多fields
GET /movies/_search
{
    "profile": true,
    "query":{
        "query_string":{
            "fields":[
                "title",
                "year"
            ],
            "query": "2012"
        }
    }
}



GET /movies/_search
{
    "profile":true,
    "query":{
        "simple_query_string":{
            "query":"Beautiful +mind",
            "fields":["title"]
        }
    }
}
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