Elasticsearch 在bool查询中使用分词器

1. 创建索引 test setting和mappings

设置了自定义分词映射规则。

PUT /test
{
  "settings": {
    "analysis": {
      
      "filter": {
        "my_synonym": {
          "type": "synonym",
          "updateable": true,
          "synonyms_path": "dic/synonyms.txt"
        }
      },
      "analyzer": {
        "my_analyzer": {
          "tokenizer": "ik_max_word",
          "filter": [
            "my_synonym"
          ]
        }
      }
    }
  },
  "mappings": {
    "properties": {
      "name": {
        "type": "text",
        "analyzer": "ik_max_word"
      }
    }
  }
}

dic/synonyms.txt文件中的映射词如下：

张三,李四 => 王五
电脑 => 计算机
苹果 => 苹果电脑

2. 向test索引中写入数据

PUT test/_doc/1
{
 "name":"电脑"
}

PUT test/_doc/2
{
 "name":"苹果"
}

PUT test/_doc/3
{
 "name":"王五"
}

3. 查询

使用bool查询数据。

#查询语句
GET test/_search/
{
  "query": {
    "bool": {
      "must": [
        {
          "match":{
            "name":{
             "query":"张三,李四",
             "analyzer":"my_analyzer"
            }
          }
        }
      ]
    }
  }
}


#查询结果
{
  "took" : 831,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 1,
      "relation" : "eq"
    },
    "max_score" : 3.257093,
    "hits" : [
      {
        "_index" : "test",
        "_type" : "_doc",
        "_id" : "3",
        "_score" : 3.257093,
        "_source" : {
          "name" : "王五"
        }
      }
    ]
  }
}

以上查询中query中指定查询“张三,李四”，同时由于指定了自定义分词映射规则，会自动将“张三,李四”映射为“王五”进行查询，结果所以会查询出“王五”。