ElasticSearch_(3)映射介紹

映射相當於Mysql數據庫中的表結構

類型	說明
text	全文索引，支持分詞
keyword	關鍵字

新增 映射 PUT

curl -X PUT "localhost:9200/nba/_mapping" -H 'Content-Type:application/json' -d 
'{
	"properties":{
		"name":{
			"type":"text"
		},
		"team_name":{
			"type":"text"
		},
		"position":{
			"type":"keyword"
		},
		"play_year":{
			"type":"keyword"
		},
		"jerse_no":{
			"type":"keyword"
		}
	}
}'

在shell中需要如下輸入

curl -X PUT "localhost:9200/nba/_mapping" -H 'Content-Type:application/json' -d '{"properties":{"name":{"type":"text"},"team_name":{"type":"text"},"position":{"type":"keyword"},"play_year":{"type":"keyword"},"jerse_no":{"type":"keyword"}}}'

返回一個json

{
	"acknowledged":true
}

獲取 映射 mapping

curl -X GET "localhost:9200/nba/_mapping"

返回一個json

{
    "nba": {
        "mappings": {
            "properties": {
                "jerse_no": {
                    "type": "keyword"
                },
                "name": {
                    "type": "text"
                },
                "play_year": {
                    "type": "keyword"
                },
                "position": {
                    "type": "keyword"
                },
                "team_name": {
                    "type": "text"
                }
            }
        }
    }
}

,獲取多個索引 的映射

curl -X GET "localhost:9200/nba,cba/_mapping"

_mapping 獲取多個索引的映射

curl -X GET "localhost:9200/_mapping"

_all 獲取多個索引的映射

curl -X GET "localhost:9200/_all/_mapping"

返回一個json

{
    "nba": {
        "mappings": {
            "properties": {
                "jerse_no": {
                    "type": "keyword"
                },
                "name": {
                    "type": "text"
                },
                "play_year": {
                    "type": "keyword"
                },
                "position": {
                    "type": "keyword"
                },
                "team_name": {
                    "type": "text"
                }
            }
        }
    },
    "cba": {
        "mappings": {}
    }
}

修改 映射 PUT

只能新增字段，不能修改字段

新增映射中字段

新增一個 國家字段

curl -X PUT "localhost:9200/nba/_mapping" -H 'Content-Type:application/json' -d 
'{
	"properties":{
		"name":{
			"type":"text"
		},
		"team_name":{
			"type":"text"
		},
		"position":{
			"type":"keyword"
		},
		"play_year":{
			"type":"keyword"
		},
		"jerse_no":{
			"type":"keyword"
		}
		"country":{
			"type":"keyword"
		}
	}
}'

返回一個json

{
    "acknowledged": true
}