elasticsearch - 如何在Elasticsearch中执行完全匹配和部分匹配？

Question

这是json:

{
"took": 3,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 2,
"max_score": 1,
"hits": [
{
"_index": "testing",
"_type": "skills",
"_id": "AV9FMnRfkEZ90S4dhzF6",
"_score": 1,
"_source": {
"skill": "java"
}
}
,
{
"_index": "testing",
"_type": "skills",
"_id": "AV9FM777kEZ90S4dhzF7",
"_score": 1,
"_source": {
"skill": "c language"
}
}
]
}
}

我有两个方面，我需要获得部分和确切的匹配技能。

部分匹配:

假设我给“c”，那么我应该获得结果“c语言”的技能。

输入:
c-> c语言

完全符合:

假设我给“java”，那么我应该得到结果“java”技能。

输入:
java-> Java

Answer 1

试试这个。
通过以下方式定义映射:

PUT index
{
  "mappings": {
    "type": {
      "properties": {
        "skill": {
          "type": "string",
          "index" : "analyzed",
          "fields": {
            "keyword": {
              "type": "string",
              "index" : "not_analyzed"
            }
          }
        }
      }
    }
  }
}

相当于上述命令的CURL:

curl -XPUT localhost:9200/index -d '
{
  "mappings": {
    "type": {
      "properties": {
        "skill": {
          "type": "string",
          "index" : "analyzed",
          "fields": {
            "keyword": {
              "type": "string",
              "index" : "not_analyzed"
            }
          }
        }
      }
    }
  }
}'

添加文件:

POST index/type
{
  "skill":"c language"
}

POST index/type
{
  "skill":"java"
}

相当于上述命令的CURL:

curl -XPOST localhost:9200/index/type -d '
{
  "skill":"c language"
}'

curl -XPOST localhost:9200/index/type -d '
{
  "skill":"java"
}'

搜索您的文档:

部分匹配:

GET index/_search
{
  "query": {
    "match": {
      "skill": "c"
    }
  }
}

完全符合:

GET index/_search
{
  "query": {
    "term": {
      "skill.keyword": "java"
    }
  }
}

相当于上述命令的CURL:

curl -XGET localhost:9200/index/_search -d '
{
  "query": {
    "match": {
      "skill": "c"
    }
  }
}'


curl -XGET localhost:9200/index/_search -d '
{
  "query": {
    "term": {
      "skill.keyword": "java"
    }
  }
}'