elasticsearch搜索建議Completion Suggester

目的：實現淘寶、京東搜索建議功能

 

 

準備環境：安裝elasticsearch, 並安裝拼音插件（https://github.com/medcl/elasticsearch-analysis-pinyin）。我安裝的環境爲當前最新版6.2.4。

參考官網教程：https://www.elastic.co/guide/en/elasticsearch/reference/current/search-suggesters-completion.html

docker中安裝：docker exec -it elastic-search /bin/bash

elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-pinyin/releases/download/v6.4.1/elasticsearch-analysis-pinyin-6.4.1.zip

不一樣的地方是要整合拼音進去。

一、建立Index

PUT suggester

{
	"index" : {
        "analysis" : {
            "analyzer" : {
                "pinyin_analyzer" : {
                    "tokenizer" : "my_pinyin"
                    }
            },
            "tokenizer" : {
                "my_pinyin" : {
                    "type" : "pinyin",
                    "keep_separate_first_letter" : true,
                    "keep_original" : true
                }
            }
        }
    }
}

 

二、建立Mapping(type要相同)

POST /suggester/User/_mapping

{ 
    "User" : {
        "properties" : {
            "suggest" : {
                "type" : "completion",
                "analyzer":"pinyin_analyzer"
            },
            "title" : {
                "type": "completion",
                "analyzer":"pinyin_analyzer"
            }
        }
    }
}

 

三、添加測試數據

PUT /suggester/User/1

{
	"title":"我是帥哥",
	"suggest":"今天我要出去耍"
}

PUT /suggester/User/2

{
	"title":"我是美女",
	"suggest":"今天我不出去耍"
}

 

四、搜索

POST /suggester/_search

{
    "suggest": {
        "song-suggest" : {
            "prefix" : "wos", 
            "completion" : { 
                "field" : "title" 
            }
        }
    }
}

結果