ES 数据搜索(1)

1.准备数据：JSON生成器：www.json-generator.com/

下载官网原数据：https://raw.githubusercontent.com/elastic/elasticsearch/master/docs/src/test/resources/accounts.json

curl -H "Content-Type: application/json" -XPOST "localhost:9200/bank/account/_bulk?pretty&refresh" --data-binary "@accounts.json"

2.两种search请求方式：

REST Request URI

         q=*匹配所有文档

         sort 按account_number字段排序 升序

The pretty parameter, again, just tells Elasticsearch to return pretty-printed JSON results.

curl -XGET 'localhost:9200/bank/_search?q=*&sort=account_number:asc&pretty&pretty'
    • took - Elasticsearch执行搜索的时间（以毫秒为单位）
    • timed_out - 告诉我们搜索是否超时
    • _shards - 告诉我们搜索了多少碎片，以及搜索碎片成功/失败的次数
    • hits - 搜索结果
    • hits.total - 符合我们搜索条件的文件总数
    • hits.hits - 实际的搜索结果数组（默认为前10个文档）
    • hits.sort - 对结果进行排序键（按分数排序时丢失）
    • hits._score、max_score得分
 
{
  "took" : 63,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : 1000,
    "max_score" : null,
    "hits" : [ {
      "_index" : "bank",
      "_type" : "account",
      "_id" : "0",
      "sort": [0],
      "_score" : null,
      "_source" : {"account_number":0,"balance":16623,"firstname":"Bradshaw","lastname":"Mckenzie","age":29,"gender":"F","address":"244 Columbus Place","employer":"Euron","email":"bradshawmckenzie@euron.com","city":"Hobucken","state":"CO"}
    }, {
      "_index" : "bank",
      "_type" : "account",
      "_id" : "1",
      "sort": [1],
      "_score" : null,
      "_source" : {"account_number":1,"balance":39225,"firstname":"Amber","lastname":"Duke","age":32,"gender":"M","address":"880 Holmes Lane","employer":"Pyrami","email":"amberduke@pyrami.com","city":"Brogan","state":"IL"}
    }, ...
    ]
  }
}

REST Request body    

同上的rest请求体方式：

query：请求全部

sort：按account_number升序排序

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'
{
"query": { "match_all": {} },
"sort": [
{ "account_number": "asc" }
]
}
'
 

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'
{
"query": { "match_all": {} }
}
'
 只写from

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'
{
"query": { "match_all": {} },
"size": 1
}
'
 from+size  

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'
{
"query": { "match_all": {} },
"from": 10,
"size": 10
}
'
 sort  

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'
{
"query": { "match_all": {} },
"sort": { "balance": { "order": "desc" } }
}
'
只返回关注的字段：account_number,balance

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'
{
"query": { "match_all": {} },
"_source": ["account_number", "balance"]
}
'
 match query：匹配查询 返回account_num=20的结果

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'
{
"query": { "match": { "account_number": 20 } }
}
'
 匹配查询 返回address包含mill or  lane的结果  

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'
{
"query": { "match": { "address": "mill lane" } }
}
'
匹配：address包含：mill and lane

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'
{
"query": { "match_phrase": { "address": "mill lane" } }
}
'
 bool查询：must 都匹配  a and b

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'

{
  "query": {
    "bool": {
      "must": [
        { "match": { "address": "mill" } },
        { "match": { "address": "lane" } }
      ]
    }
  }
}


}
'
 bool查询：should 可以匹配：a or b  

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'

{
  "query": {
    "bool": {
      "should": [
        { "match": { "address": "mill" } },
        { "match": { "address": "lane" } }
      ]
    }
  }
}


'

 bool查询：must_not 都不匹配

  

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'

{
  "query": {
    "bool": {
      "must_not": [
        { "match": { "address": "mill" } },
        { "match": { "address": "lane" } }
      ]
    }
  }
}


'
 bool查询：混合查询

curl -XGET 'localhost:9200/bank/_search?pretty' -H 'Content-Type: application/json' -d'

{
  "query": {
    "bool": {
      "must": [
        { "match": { "age": "40" } }
      ],
      "must_not": [
        { "match": { "state": "ID" } }
      ]
    }
  }
}



'
 filter查询：落入filter范围的文档全部等价，不存在谁的score比谁的高   
GET / bank / _search 
{ 
  “query”：{ 
    “bool”：{ 
      “must”：{“match_all”：{}}，
      “filter”：{ 
        “range”：{ 
          “balance”：{ 
            “gte” 
            “lte”：30000 
          } 
        } 
      } 
    } 
  } 
}
   


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原文地址：https://www.cnblogs.com/zhxdxf/p/8312781.html