搜索的简单使用

我会带着你远行 2023-01-13 10:54 113阅读 0赞

1 初始化测试数据

delete nba
    
    put nba
    {
    "mappings": {
     "properties": {
     "name": {
     "type": "text"
     },
     "team_name": {
     "type": "text"
     },
     "position": {
     "type": "text"
     },
     "play_year": {
     "type": "long"
     },
     "jerse_no": {
     "type": "keyword"
     }
     }
     }
    }
    
    put nba/_doc/1
    {
     "name": "哈登",
     "team_name": "⽕箭",
     "position": "得分后卫",
     "play_year": 10,
     "jerse_no": "13"
    }
    
    
    put nba/_doc/2
    {
     "name": "库⾥",
     "team_name": "勇⼠",
     "position": "控球后卫",
     "play_year": 10,
     "jerse_no": "30",
     "title": "the best shooter"
    }
    
    put nba/_doc/3
    {
     "name": "詹姆斯",
     "team_name": "湖⼈",
     "position": "⼩前锋",
     "play_year": 15,
     "jerse_no": "23"
    }

2 term精准匹配，按词项精准匹配，设置查询字段为keyword

post nba/_search
    {
      "query":{
        "term": {
          "jerse_no": {
            "value": "30"
          }
        }
      }
    }

{
      "took" : 1,
      "timed_out" : false,
      "_shards" : {
        "total" : 1,
        "successful" : 1,
        "skipped" : 0,
        "failed" : 0
      },
      "hits" : {
        "total" : {
          "value" : 1,
          "relation" : "eq"
        },
        "max_score" : 0.9808292,
        "hits" : [
          {
            "_index" : "nba",
            "_type" : "_doc",
            "_id" : "2",
            "_score" : 0.9808292,
            "_source" : {
              "name" : "库⾥",
              "team_name" : "勇⼠",
              "position" : "控球后卫",
              "play_year" : 10,
              "jerse_no" : "30",
              "title" : "the best shooter"
            }
          }
        ]
      }
    }

3 terms精准匹配多个值，文档匹配数组中一个词项就算匹配

POST nba/_search
    {
      "query": {
        "terms": {
          "jerse_no": [
            "23",
            "30"
          ]
        }
      }
    }

{
      "took" : 4,
      "timed_out" : false,
      "_shards" : {
        "total" : 1,
        "successful" : 1,
        "skipped" : 0,
        "failed" : 0
      },
      "hits" : {
        "total" : {
          "value" : 2,
          "relation" : "eq"
        },
        "max_score" : 1.0,
        "hits" : [
          {
            "_index" : "nba",
            "_type" : "_doc",
            "_id" : "3",
            "_score" : 1.0,
            "_source" : {
              "name" : "詹姆斯",
              "team_name" : "湖⼈",
              "position" : "⼩前锋",
              "play_year" : 15,
              "jerse_no" : "23"
            }
          },
          {
            "_index" : "nba",
            "_type" : "_doc",
            "_id" : "2",
            "_score" : 1.0,
            "_source" : {
              "name" : "库⾥",
              "team_name" : "勇⼠",
              "position" : "控球后卫",
              "play_year" : 10,
              "jerse_no" : "30",
              "title" : "the best shooter"
            }
          }
        ]
      }
    }

4 match\_all查询全部

post nba/_search
    {
      "query":{
        "match_all": {}
      },
      "from":1,
      "size":10
    }

{
      "took" : 2,
      "timed_out" : false,
      "_shards" : {
        "total" : 1,
        "successful" : 1,
        "skipped" : 0,
        "failed" : 0
      },
      "hits" : {
        "total" : {
          "value" : 3,
          "relation" : "eq"
        },
        "max_score" : 1.0,
        "hits" : [
          {
            "_index" : "nba",
            "_type" : "_doc",
            "_id" : "1",
            "_score" : 1.0,
            "_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",
            "_score" : 1.0,
            "_source" : {
              "name" : "库⾥",
              "team_name" : "勇⼠",
              "position" : "控球后卫",
              "play_year" : 10,
              "jerse_no" : "30",
              "title" : "the best shooter"
            }
          }
        ]
      }
    }

5 match全文搜索，参数分词，只要参数分词后的一个词项命中即命中文档

post nba/_search
    {
      "query":{
        "match": {
          "position": "后卫"
        }
      }
    }

{
      "took" : 1,
      "timed_out" : false,
      "_shards" : {
        "total" : 1,
        "successful" : 1,
        "skipped" : 0,
        "failed" : 0
      },
      "hits" : {
        "total" : {
          "value" : 2,
          "relation" : "eq"
        },
        "max_score" : 0.90630186,
        "hits" : [
          {
            "_index" : "nba",
            "_type" : "_doc",
            "_id" : "1",
            "_score" : 0.90630186,
            "_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",
            "_score" : 0.90630186,
            "_source" : {
              "name" : "库⾥",
              "team_name" : "勇⼠",
              "position" : "控球后卫",
              "play_year" : 10,
              "jerse_no" : "30",
              "title" : "the best shooter"
            }
          }
        ]
      }
    }

6 multi\_match多字段全文搜索

post nba/_search
    {
      "query":{
        "multi_match": {
          "query": "shooter",
          "fields": ["title","name"]
        }
      }
    }

{
      "took" : 1,
      "timed_out" : false,
      "_shards" : {
        "total" : 1,
        "successful" : 1,
        "skipped" : 0,
        "failed" : 0
      },
      "hits" : {
        "total" : {
          "value" : 1,
          "relation" : "eq"
        },
        "max_score" : 0.2876821,
        "hits" : [
          {
            "_index" : "nba",
            "_type" : "_doc",
            "_id" : "2",
            "_score" : 0.2876821,
            "_source" : {
              "name" : "库⾥",
              "team_name" : "勇⼠",
              "position" : "控球后卫",
              "play_year" : 10,
              "jerse_no" : "30",
              "title" : "the best shooter"
            }
          }
        ]
      }
    }

7 match\_phrase 语句精准匹配（非词项精确匹配），参数会分词，分词后的所有词项全部命中，且顺序一致才算命中

post nba/_search
    {
      "query":{
        "match_phrase": {
          "position": "分后"
        }
      }
    }

{
      "took" : 1,
      "timed_out" : false,
      "_shards" : {
        "total" : 1,
        "successful" : 1,
        "skipped" : 0,
        "failed" : 0
      },
      "hits" : {
        "total" : {
          "value" : 1,
          "relation" : "eq"
        },
        "max_score" : 1.398811,
        "hits" : [
          {
            "_index" : "nba",
            "_type" : "_doc",
            "_id" : "1",
            "_score" : 1.398811,
            "_source" : {
              "name" : "哈登",
              "team_name" : "⽕箭",
              "position" : "得分后卫",
              "play_year" : 10,
              "jerse_no" : "13"
            }
          }
        ]
      }
    }

8 match\_phrase\_prefix支持前缀的match\_phrase,参数分词后最后一个词项支持前缀匹配

post nba/_search
    {
      "query":{
        "match_phrase_prefix": {
          "title": "the best s"
        }
      }
    }

{
      "took" : 1,
      "timed_out" : false,
      "_shards" : {
        "total" : 1,
        "successful" : 1,
        "skipped" : 0,
        "failed" : 0
      },
      "hits" : {
        "total" : {
          "value" : 1,
          "relation" : "eq"
        },
        "max_score" : 0.8630463,
        "hits" : [
          {
            "_index" : "nba",
            "_type" : "_doc",
            "_id" : "2",
            "_score" : 0.8630463,
            "_source" : {
              "name" : "库⾥",
              "team_name" : "勇⼠",
              "position" : "控球后卫",
              "play_year" : 10,
              "jerse_no" : "30",
              "title" : "the best shooter"
            }
          }
        ]
      }
    }