Elasticsearch---DSL搜索實踐

時間 2021-02-23

標籤 javascript 前端 java app ide post 性能學習 url spa 欄目日誌分析简体版

原文原文鏈接

 
  Domain Specific Language 
 

 
  特定領域語言，基於JSON格式的數據查詢，查詢更靈活，有利於複雜查詢 
 

 
 1、普通url路徑參數搜索 

數據準備

  1.創建名字爲 shop 的索引 

  2.手動創建mappings 

 
   POST        http://192.168.2.223:9200/shop/_mapping
{
    "properties": {
        "id": {
            "type": "long"
        },
        "age": {
            "type": "integer"
        },
        "username": {
            "type": "keyword"
        },
        "nickname": {
            "type": "text",
            "analyzer": "ik_max_word"
        },
        "money": {
            "type": "float"
        },
        "desc": {
            "type": "text",
            "analyzer": "ik_max_word"
        },
        "sex": {
            "type": "byte"
        },
        "birthday": {
            "type": "date"
        },
        "face": {
            "type": "text",
            "index": false
        }
    }
} 
  
View Code

   3.添加數據 
 
 
    POST   http://192.168.2.223:9200/shop/_doc/1001
{
"id": 1011,
"age": 31,
"username": "sprder",
"nickname": "皮特帕克",
"money": 180.8,
"desc": "它是一個超級英雄",
"sex": 1,
"birthday": "1989-08-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"
}
{
"id": 1008,
"age": 19,
"username": "zhoujiang",
"nickname": "周江",
"money": 1056.8,
"desc": "周江大學畢業後，進了阿里",
"sex": 1,
"birthday": "1995-06-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"
}
{
"id": 1007,
"age": 19,
"username": "msgame",
"nickname": "gamexbox",
"money": 1056.8,
"desc": "明天去進貨，最近微軟處理不少遊戲機，還要買xbox遊戲卡帶",
"sex": 1,
"birthday": "1985-05-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"    
}
{
"id": 1003,
"age": 20,
"username": "bigFace",
"nickname": "飛翔的巨鷹",
"money": 66.8,
"desc": "周江和導遊坐飛機去海外旅遊，去了新馬泰和歐洲",
"sex": 1,
"birthday": "1996-01-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"    
}
{
"id": 1002,
"age": 19,
"username": "zhouhong",
"nickname": "周紅",
"money": 77.8,
"desc": "今天上下班都很堵，車流量很大",
"sex": 1,
"birthday": "1993-01-24",
"face": "https://www.zhouhong.com/static/img/index/logo.png"    
}
{
 "id": 1012,
"age": 31,
"username": "super hero",
"nickname": "super hero",
"money": 188.8,
"desc": "BatMan, GreenArrow, SpiderMan, IronMan... are all Super Hero",
"sex": 1,
"birthday": "1980-08-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"   
}
{
"id": 1010,
"age": 30,
"username": "tata",
"nickname": "隔壁老王",
"money": 100.8,
"desc": "隔壁老外去國外出差，帶給我不少好吃的",
"sex": 1,
"birthday": "1988-07-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"    
}
{
 "id": 1009,
"age": 22,
"username": "shaonian",
"nickname": "騷年輪",
"money": 96.8,
"desc": "騷年在大學畢業後，考研究生去了",
"sex": 1,
"birthday": "1998-07-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"   
}
{
"id": 1006,
"age": 19,
"username": "zhouhong",
"nickname": "我叫周紅",
"money": 156.8,
"desc": "我叫周紅，今年20歲，是一名畢業生，我在琦䯲星球作演講",
"sex": 1,
"birthday": "1993-04-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"    
}
{
"id": 1005,
"age": 25,
"username": "gotoplay",
"nickname": "ps遊戲機",
"money": 155.8,
"desc": "今年生日，女朋友送了我一臺play station遊戲機，很是好玩，很是不錯",
"sex": 1,
"birthday": "1989-03-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"    
}
{
 "id": 1004,
"age": 22,
"username": "flyfish",
"nickname": "水中魚",
"money": 55.8,
"desc": "昨天周紅在學校的池塘裏，看到有不少魚在游泳",
"sex": 0,
"birthday": "1988-02-14",
"face": "https://www.zhouhong.com/static/img/index/logo.png"   
}
{
 "id": 1001,
"age": 18,
"username": "zhoujiang",
"nickname": "周江",
"money": 88.8,
"desc": "周江在大學學習java和前端",
"sex": 0,
"birthday": "1992-12-24",
"face": "https://www.zhouhong.com/static/img/index/logo.png"   
} 
   
View Code
 
   2、檢索： 
  
 
   普通檢索： 
  
 
   http://192.168.2.223:9200/shop/_search?q=desc:周紅&q=age:20
 
       {
    "took": 8,
    "timed_out": false,
    "_shards": {
        "total": 3,
        "successful": 3,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 1,
            "relation": "eq"
        },
        "max_score": 1,
        "hits": [
            {
                "_index": "shop",
                "_type": "_doc",
                "_id": "1003",
                "_score": 1,
                "_source": {
                    "id": 1003,
                    "age": 20,
                    "username": "bigFace",
                    "nickname": "飛翔的巨鷹",
                    "money": 66.8,
                    "desc": "周江和導遊坐飛機去海外旅遊，去了新馬泰和歐洲",
                    "sex": 1,
                    "birthday": "1996-01-14",
                    "face": "https://www.zhouhong.com/static/img/index/logo.png"
                }
            }
        ]
    }
} 
      
View Code
 
  
 
   DSL檢索： 
  
 
   match_all 檢索
查詢全部：POST http://192.168.2.223:9200/shop/_doc/_search
 
       {
    "query": {
        "match_all": {}
    }
} 
      

          
      
查詢部分字段 ： POST http://192.168.2.223:9200/shop/_doc/_search
 
       {
    "query": {
        "match_all": {}
    },
    "_source": ["id","username","age"]
} 
      
分頁查詢： POST http://192.168.2.223:9200/shop/_doc/_search
 
       {
    "query": {
        "match_all": {}
    },
    "_source": ["id","username","age"],
    "from": 0,
    "size": 5
} 
      
 
  
match_phrase 查詢同一個字段中幾個詞，能夠跳過其餘詞，slop表示能夠跳過的最大詞數
POST http://192.168.2.223:9200/shop/_doc/_search
 
       {
    "query": {
        "match_phrase": {
            "desc": {
                "query": "今天 車流量",
                "slop": 100
            }
        }
    }
} 
      
 
    term 單個條件查詢（不會進行分詞、將輸入字符當作關鍵字查找，精確匹配）
POST http://192.168.2.223:9200/shop/_doc/_search
 
        {
    "query": {
        "term": {
            "desc": "學習"
        }
    }
} 
       
 
   
 
    terms 對個關鍵字查詢 
      　　POST http://192.168.2.223:9200/shop/_doc/_search
 
         {
    "query": {
        "terms": {
            "desc": ["學習","周紅","周江"]
        }
    }
} 
        
 
 
   
 
    match 條件查詢（會對輸入的字符進行分詞操做、全文檢索）：
POST http://192.168.2.223:9200/shop/_doc/_search
 
        {
    "query": {
        "match": {
            "desc": "周紅"
        }
    },
    "_source": ["id","username","age"]
} 
       
 
   
 
     
     POST http://192.168.2.223:9200/shop/_doc/_search operator 爲 「or」表示：字段只要有一個分詞就能夠查出來，operator 爲 「and」表示：字段必須包含分詞分出來的全部字段。
 
        {
    "query": {
        "match": {
            "desc": {
                "query": "周紅",
                "operator": "and"
            }
        }
    },
    "_source": ["id","username","age"]
} 
       
 
     
   
 
    
    POST http://192.168.2.223:9200/shop/_doc/_search 
​minimum_should_match: 最低匹配精度，至少有[分詞後的詞語個數]x百分百，得出一個數據值取整。舉個例子：當前屬性設置爲70，若一個用戶查詢檢索內容分詞後有10個詞語，那麼匹配度按照 10x70%=7，則desc中至少須要有7個詞語匹配，就展現；若分詞後有8個，則 8x70%=5.6，則desc中至少須要有5個詞語匹配，就展現。
minimum_should_match 也能設置具體的數字，表示拆分出來的詞在一個字段中個數
 
       {
    "query": {
        "match": {
            "desc": {
                "query": "女朋友生日送我好玩的xbox遊戲機",
                "minimum_should_match": "60%"
            }
        }
    }
}  
      
 
    
  
 
    
    POST http://192.168.2.223:9200/shop/_doc/_search 根據文檔 ids 進行查找
 
       {
    "query": {
        "ids": {
            "type": "_doc",
            "values": ["1001","1005","1006"]
        }
    },
    "_source": ["id","username","desc"]
} 
      
 
    
  
 
   multi_match 對多個字段進行檢索
POST http://192.168.2.223:9200/shop/_doc/_search ^10 表示權重，權重，爲某個字段設置權重，權重越高，文檔相關性得分就越高。通暢來講搜索商品名稱要比商品簡介的權重更高。
 
       {
    "query": {
        "multi_match": {
            "query": "遊戲",
            "fields": [
                "desc^10","nickname"
            ]
        }
    }
} 
      
 
  
 
   bool 查詢
POST http://192.168.2.223:9200/shop/_doc/_search
must ：多個條件所有要知足， should：或者的意思，知足一個條件便可，must_not ：除了知足全部條件剩下的數據。
 
       {
    "query": {
        "bool": {
            "must": [
                {
                    "multi_match": {
                        "query": "遊戲",
                        "fields": ["desc","nickname"]
                    }
                },
                {
                    "term": {
                        "age": "19"
                    }
                }
            ]
        }
    }
} 
      
 
  
 
   post_filter 過濾器
POST http://192.168.2.223:9200/shop/_doc/_search
對搜索出來的結果進行數據過濾。不會到es庫裏去搜，不會去計算文檔的相關度分數，因此過濾的性能會比較高，過濾器能夠和全文搜索結合在一塊兒使用。
 
  
 
   post_filter元素是一個頂層元素，只會對搜索結果進行過濾。不會計算數據的匹配度相關性分數，不會根據分數去排序，query則相反，會計算分數，也會按照分數去排序。 
  
 
   使用場景： 
  
 
   ​query：根據用戶搜索條件檢索匹配記錄
post_filter：用於查詢後，對結果數據的篩選
 
  
 
   實操：查詢帳戶金額大於80元，小於等於155.8元的用戶 
  
 
   gte：大於等於 
  
 
   lte：小於等於 
  
 
   gt：大於 
  
 
   lt：小於 
  
 
    {
    "query": {
        "match": {
            "sex": "1"
        }
    },
    "post_filter": {
        "range": {
            "money": {
                "gte": 60,
                "lte": 155.8
            }
        }
    }
} 
   
 
   sort 排序功能
POST http://192.168.2.223:9200/shop/_doc/_search 先以money排序再以age排序，注意：只能對整形排序，不能對文本類型排序。
 
       {
    "query": {
        "match": {
            "sex": "1"
        }
    },
    "sort": [
        {
            "money": "asc"
        },
        {
            "age": "asc"
        }    
    ]
} 
      
 
  
 
    
    對文本排序
須要對排序字段加一個附加屬性，類型選擇爲keyword
 
        1.建立索引
POST        /shop2/_mapping
{
    "properties": {
        "id": {
            "type": "long"
        },
        "nickname": {
            "type": "text",
            "analyzer": "ik_max_word",
            "fields": {
                "keyword": {
                    "type": "keyword"
                }
            }
        }
    }
} 
       
View Code
 
        2.插入數據
POST         /shop2/_doc
{
    "id": 1001,
    "nickname": "美麗的風景"
}
{
    "id": 1002,
    "nickname": "漂亮的小哥哥"
}
{
    "id": 1003,
    "nickname": "飛翔的巨鷹"
}
{
    "id": 1004,
    "nickname": "完美的天空"
}
{
    "id": 1005,
    "nickname": "廣闊的海域"
} 
       
View Code
 
       3.排序     POST    http://192.168.2.223:9200/shop2/_doc/_search
{
    "sort": [
        {
            "nickname.keyword": "desc"
        }
    ]
} 
      
 
    
  
 
   exists 判斷字段是否存在
POST http://192.168.2.223:9200/shop/_doc/_search
 
       {
    "query": {
        "exists": {
            "field": "desc"
        }
    }
} 
      
 
  
highlight 關鍵字高亮顯示
POST http://192.168.2.223:9200/shop/_doc/_search
 
       {
    "query": {
        "match": {
            "desc": "周紅"
        }
    },
    "highlight": {
        "pre_tags": ["<span>"],
        "post_tags": ["</span>"],
        "fields": {
            "desc": {}
        }
    }
} 
      
 
       結果：默認爲em標籤，上面設置爲自定義的<span>標籤，對頁面 em/span 標籤作一個顏色設置就能夠實現高亮顯示了。 
      
 
        {
    "took": 110,
    "timed_out": false,
    "_shards": {
        "total": 3,
        "successful": 3,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 2,
            "relation": "eq"
        },
        "max_score": 1.1329247,
        "hits": [
            {
                "_index": "shop",
                "_type": "_doc",
                "_id": "1004",
                "_score": 1.1329247,
                "_source": {
                    "id": 1004,
                    "age": 22,
                    "username": "flyfish",
                    "nickname": "水中魚",
                    "money": 55.8,
                    "desc": "昨天周紅在學校的池塘裏，看到有不少魚在游泳",
                    "sex": 0,
                    "birthday": "1988-02-14",
                    "face": "https://www.zhouhong.com/static/img/index/logo.png"
                },
                "highlight": {
                    "desc": [
                        "昨天<em>周紅</em>在學校的池塘裏，看到有不少魚在游泳"
                    ]
                }
            },
            {
                "_index": "shop",
                "_type": "_doc",
                "_id": "1006",
                "_score": 0.9585575,
                "_source": {
                    "id": 1006,
                    "age": 19,
                    "username": "zhouhong",
                    "nickname": "我叫周紅",
                    "money": 156.8,
                    "desc": "我叫周紅，今年20歲，是一名畢業生，我在琦䯲星球作演講",
                    "sex": 1,
                    "birthday": "1993-04-14",
                    "face": "https://www.zhouhong.com/static/img/index/logo.png"
                },
                "highlight": {
                    "desc": [
                        "我叫<em>周紅</em>，今年20歲，是一名畢業生，我在琦䯲星球作演講"
                    ]
                }
            }
        ]
    } 
       
View Code
 
 

 
  Domain Specific Language 
 

 
  特定領域語言，基於JSON格式的數據查詢，查詢更靈活，有利於複雜查詢 
 

 
 1、普通url路徑參數搜索 

數據準備

  1.創建名字爲 shop 的索引 

  2.手動創建mappings 

  POST http://192.168.2.223:9200/shop/_mapping { "properties": { "id": { "type": "long" }, "age": { "type": "integer" }, "username": { "type": "keyword" }, "nickname": { "type": "text", "analyzer": "ik_max_word" }, "money": { "type": "float" }, "desc": { "type": "text", "analyzer": "ik_max_word" }, "sex": { "type": "byte" }, "birthday": { "type": "date" }, "face": { "type": "text", "index": false } } } 

  3.添加數據 

  POST http://192.168.2.223:9200/shop/_doc/1001 { "id": 1011, "age": 31, "username": "sprder", "nickname": "皮特帕克", "money": 180.8, "desc": "它是一個超級英雄", "sex": 1, "birthday": "1989-08-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1008, "age": 19, "username": "zhoujiang", "nickname": "周江", "money": 1056.8, "desc": "周江大學畢業後，進了阿里", "sex": 1, "birthday": "1995-06-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1007, "age": 19, "username": "msgame", "nickname": "gamexbox", "money": 1056.8, "desc": "明天去進貨，最近微軟處理不少遊戲機，還要買xbox遊戲卡帶", "sex": 1, "birthday": "1985-05-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1003, "age": 20, "username": "bigFace", "nickname": "飛翔的巨鷹", "money": 66.8, "desc": "周江和導遊坐飛機去海外旅遊，去了新馬泰和歐洲", "sex": 1, "birthday": "1996-01-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1002, "age": 19, "username": "zhouhong", "nickname": "周紅", "money": 77.8, "desc": "今天上下班都很堵，車流量很大", "sex": 1, "birthday": "1993-01-24", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1012, "age": 31, "username": "super hero", "nickname": "super hero", "money": 188.8, "desc": "BatMan, GreenArrow, SpiderMan, IronMan... are all Super Hero", "sex": 1, "birthday": "1980-08-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1010, "age": 30, "username": "tata", "nickname": "隔壁老王", "money": 100.8, "desc": "隔壁老外去國外出差，帶給我不少好吃的", "sex": 1, "birthday": "1988-07-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1009, "age": 22, "username": "shaonian", "nickname": "騷年輪", "money": 96.8, "desc": "騷年在大學畢業後，考研究生去了", "sex": 1, "birthday": "1998-07-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1006, "age": 19, "username": "zhouhong", "nickname": "我叫周紅", "money": 156.8, "desc": "我叫周紅，今年20歲，是一名畢業生，我在琦䯲星球作演講", "sex": 1, "birthday": "1993-04-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1005, "age": 25, "username": "gotoplay", "nickname": "ps遊戲機", "money": 155.8, "desc": "今年生日，女朋友送了我一臺play station遊戲機，很是好玩，很是不錯", "sex": 1, "birthday": "1989-03-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1004, "age": 22, "username": "flyfish", "nickname": "水中魚", "money": 55.8, "desc": "昨天周紅在學校的池塘裏，看到有不少魚在游泳", "sex": 0, "birthday": "1988-02-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } { "id": 1001, "age": 18, "username": "zhoujiang", "nickname": "周江", "money": 88.8, "desc": "周江在大學學習java和前端", "sex": 0, "birthday": "1992-12-24", "face": "https://www.zhouhong.com/static/img/index/logo.png" } 

 
 2、檢索： 

http://192.168.2.223:9200/shop/_search?q=desc:周紅&q=age:20

  { "took": 8, "timed_out": false, "_shards": { "total": 3, "successful": 3, "skipped": 0, "failed": 0 }, "hits": { "total": { "value": 1, "relation": "eq" }, "max_score": 1, "hits": [ { "_index": "shop", "_type": "_doc", "_id": "1003", "_score": 1, "_source": { "id": 1003, "age": 20, "username": "bigFace", "nickname": "飛翔的巨鷹", "money": 66.8, "desc": "周江和導遊坐飛機去海外旅遊，去了新馬泰和歐洲", "sex": 1, "birthday": "1996-01-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" } } ] } } 

 
 2、DSL搜索 

match_all 檢索

查詢全部：POST http://192.168.2.223:9200/shop/_doc/_search

  { "query": { "match_all": {} } } 

查詢部分字段： POST http://192.168.2.223:9200/shop/_doc/_search

  { "query": { "match_all": {} }, "_source": ["id","username","age"] } 

分頁查詢： POST http://192.168.2.223:9200/shop/_doc/_search

  { "query": { "match_all": {} }, "_source": ["id","username","age"], "from": 0, "size": 5 } 

match_phrase 查詢同一個字段中幾個詞，能夠跳過其餘詞，slop表示能夠跳過的最大詞數

POST http://192.168.2.223:9200/shop/_doc/_search

  { "query": { "match_phrase": { "desc": { "query": "今天 車流量", "slop": 100 } } } } 

term 單個條件查詢（不會進行分詞、將輸入字符當作關鍵字查找，精確匹配）

POST http://192.168.2.223:9200/shop/_doc/_search

  { "query": { "term": { "desc": "學習" } } } 

terms 對個關鍵字查詢

  { "query": { "terms": { "desc": ["學習","周紅","周江"] } } } 

match 條件查詢（會對輸入的字符進行分詞操做、全文檢索）：

POST http://192.168.2.223:9200/shop/_doc/_search

  { "query": { "match": { "desc": "周紅" } }, "_source": ["id","username","age"] } 

POST http://192.168.2.223:9200/shop/_doc/_search operator 爲「or」表示：字段只要有一個分詞就能夠查出來，operator 爲「and」表示：字段必須包含分詞分出來的全部字段。

  { "query": { "match": { "desc": { "query": "周紅", "operator": "and" } } }, "_source": ["id","username","age"] } 

POST http://192.168.2.223:9200/shop/_doc/_search
minimum_should_match: 最低匹配精度，至少有[分詞後的詞語個數]x百分百，得出一個數據值取整。舉個例子：當前屬性設置爲70，若一個用戶查詢檢索內容分詞後有10個詞語，那麼匹配度按照 10x70%=7，則desc中至少須要有7個詞語匹配，就展現；若分詞後有8個，則 8x70%=5.6，則desc中至少須要有5個詞語匹配，就展現。
minimum_should_match 也能設置具體的數字，表示拆分出來的詞在一個字段中個數

  { "query": { "match": { "desc": { "query": "女朋友生日送我好玩的xbox遊戲機", "minimum_should_match": "60%" } } } } 

POST http://192.168.2.223:9200/shop/_doc/_search 根據文檔 ids 進行查找

  { "query": { "ids": { "type": "_doc", "values": ["1001","1005","1006"] } }, "_source": ["id","username","desc"] } 

multi_match 對多個字段進行檢索

POST http://192.168.2.223:9200/shop/_doc/_search ^10 表示權重，權重，爲某個字段設置權重，權重越高，文檔相關性得分就越高。通暢來講搜索商品名稱要比商品簡介的權重更高。

  { "query": { "multi_match": { "query": "遊戲", "fields": [ "desc^10","nickname" ] } } } 

bool 查詢

POST http://192.168.2.223:9200/shop/_doc/_search
must ：多個條件所有要知足， should：或者的意思，知足一個條件便可，must_not ：除了知足全部條件剩下的數據。

  { "query": { "bool": { "must": [ { "multi_match": { "query": "遊戲", "fields": ["desc","nickname"] } }, { "term": { "age": "19" } } ] } } } 

post_filter 過濾器

POST http://192.168.2.223:9200/shop/_doc/_search
對搜索出來的結果進行數據過濾。不會到es庫裏去搜，不會去計算文檔的相關度分數，因此過濾的性能會比較高，過濾器能夠和全文搜索結合在一塊兒使用。

 
 post_filter元素是一個頂層元素，只會對搜索結果進行過濾。不會計算數據的匹配度相關性分數，不會根據分數去排序，query則相反，會計算分數，也會按照分數去排序。 

 
 使用場景： 

query：根據用戶搜索條件檢索匹配記錄
post_filter：用於查詢後，對結果數據的篩選

 
 實操：查詢帳戶金額大於80元，小於等於155.8元的用戶 

 
 gte：大於等於 

 
 lte：小於等於 

 
 gt：大於 

 
 lt：小於 

  { "query": { "match": { "sex": "1" } }, "post_filter": { "range": { "money": { "gte": 60, "lte": 155.8 } } } } 

sort 排序功能

POST http://192.168.2.223:9200/shop/_doc/_search 先以money排序再以age排序，注意：只能對整形排序，不能對文本類型排序。

  { "query": { "match": { "sex": "1" } }, "sort": [ { "money": "asc" }, { "age": "asc" } ] } 

對文本排序
須要對排序字段加一個附加屬性，類型選擇爲keyword

  1.建立索引 POST /shop2/_mapping { "properties": { "id": { "type": "long" }, "nickname": { "type": "text", "analyzer": "ik_max_word", "fields": { "keyword": { "type": "keyword" } } } } } 

  2.插入數據 POST /shop2/_doc { "id": 1001, "nickname": "美麗的風景" } { "id": 1002, "nickname": "漂亮的小哥哥" } { "id": 1003, "nickname": "飛翔的巨鷹" } { "id": 1004, "nickname": "完美的天空" } { "id": 1005, "nickname": "廣闊的海域" } 

  3.排序 POST http://192.168.2.223:9200/shop2/_doc/_search { "sort": [ { "nickname.keyword": "desc" } ] } 

exists 判斷字段是否存在

POST http://192.168.2.223:9200/shop/_doc/_search

  { "query": { "exists": { "field": "desc" } } } 

highlight 關鍵字高亮顯示

POST http://192.168.2.223:9200/shop/_doc/_search

  { "query": { "match": { "desc": "周紅" } }, "highlight": { "pre_tags": ["<span>"], "post_tags": ["</span>"], "fields": { "desc": {} } } } 

 
 結果：默認爲em標籤，上面設置爲自定義的<span>標籤，對頁面 em/span 標籤作一個顏色設置就能夠實現高亮顯示了。 

  { "took": 110, "timed_out": false, "_shards": { "total": 3, "successful": 3, "skipped": 0, "failed": 0 }, "hits": { "total": { "value": 2, "relation": "eq" }, "max_score": 1.1329247, "hits": [ { "_index": "shop", "_type": "_doc", "_id": "1004", "_score": 1.1329247, "_source": { "id": 1004, "age": 22, "username": "flyfish", "nickname": "水中魚", "money": 55.8, "desc": "昨天周紅在學校的池塘裏，看到有不少魚在游泳", "sex": 0, "birthday": "1988-02-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" }, "highlight": { "desc": [ "昨天<em>周紅</em>在學校的池塘裏，看到有不少魚在游泳" ] } }, { "_index": "shop", "_type": "_doc", "_id": "1006", "_score": 0.9585575, "_source": { "id": 1006, "age": 19, "username": "zhouhong", "nickname": "我叫周紅", "money": 156.8, "desc": "我叫周紅，今年20歲，是一名畢業生，我在琦䯲星球作演講", "sex": 1, "birthday": "1993-04-14", "face": "https://www.zhouhong.com/static/img/index/logo.png" }, "highlight": { "desc": [ "我叫<em>周紅</em>，今年20歲，是一名畢業生，我在琦䯲星球作演講" ] } } ] } } 