kibana花式查詢

在kibana提供的界面上進行操做。緩存

POST /school/student/_bulk
{ "index": { "_id": 1 }}
{ "name" : "liubei", "age" : 20 , "sex": "boy", "birth": "1996-01-02" , "about": "i like diaocan he girl" }
{ "index": { "_id": 2 }}
{ "name" : "guanyu", "age" : 21 , "sex": "boy", "birth": "1995-01-02" , "about": "i like diaocan" }
{ "index": { "_id": 3 }}
{ "name" : "zhangfei", "age" : 18 , "sex": "boy", "birth": "1998-01-02" , "about": "i like travel" }
{ "index": { "_id": 4 }}
{ "name" : "diaocan", "age" : 20 , "sex": "girl", "birth": "1996-01-02" , "about": "i like travel and sport" }
{ "index": { "_id": 5 }}
{ "name" : "panjinlian", "age" : 25 , "sex": "girl", "birth": "1991-01-02" , "about": "i like travel and wusong" }
{ "index": { "_id": 6 }}
{ "name" : "caocao", "age" : 30 , "sex": "boy", "birth": "1988-01-02" , "about": "i like xiaoqiao" }
{ "index": { "_id": 7 }}
{ "name" : "zhaoyun", "age" : 31 , "sex": "boy", "birth": "1997-01-02" , "about": "i like travel and music" }
{ "index": { "_id": 8 }}
{ "name" : "xiaoqiao", "age" : 18 , "sex": "girl", "birth": "1998-01-02" , "about": "i like caocao" }
{ "index": { "_id": 9 }}
{ "name" : "daqiao", "age" : 20 , "sex": "girl", "birth": "1996-01-02" , "about": "i like travel and history" }

3.4.一、使用match_all作查詢

GET /school/student/_search?pretty
{
  "query": {
      "match_all": {}
  }
}

問題:經過match_all匹配後,會把全部的數據檢索出來,可是每每真正的業務需求並不是要找所有的數據,而是檢索出本身想要的;而且對於es集羣來講,直接檢索所有的數據,很容易形成GC現象。因此,咱們要學會如何進行高效的檢索數據spa

3.4.二、經過關鍵字段進行查詢

GET /school/student/_search?pretty
{
  "query": {
        "match": {"about": "travel"}
    }
}

若是此時想查詢喜歡旅遊的,而且不能是男孩的,怎麼辦?ip

【這種方式是錯誤的,由於一個match下,不能出現多個字段值[match] query doesn't support multiple fields】,須要使用複合查詢文檔

 

3.4.三、bool的複合查詢

當出現多個查詢語句組合的時候,能夠用bool來包含。bool合併聚包含:must,must_not或者should, should表示or的意思字符串

例子:查詢非男性中喜歡旅行的人string

GET /school/student/_search?pretty
{
"query": {
  "bool": {
    "must": { "match": {"about": "travel"}},
    "must_not": {"match": {"sex": "boy"}}
    }
}
}

3.4.四、bool的複合查詢中的should

should表示無關緊要的(若是should匹配到了就展現,不然就不展現)class

例子:集羣

查詢喜歡旅行的,若是有男性的則顯示,不然不顯示date

GET /school/student/_search?pretty
{
"query": {
  "bool": {
    "must": { "match": {"about": "travel"}},
    "should": {"match": {"sex": "boy"}}        
    }
}
}

3.4.五、term匹配

使用term進行精確匹配(好比數字,日期,布爾值或 not_analyzed的字符串(未經分析的文本數據類型))數據類型

語法

{ "term": { "age": 20 }}

{ "term": { "date": "2018-04-01" }}

{ "term": { "sex": 「boy」 }}

{ "term": { "about": "trivel" }}

例子:

查詢喜歡旅行的

GET /school/student/_search?pretty
{
"query": {
  "bool": {
    "must": { "term": {"about": "travel"}},
    "should": {"term": {"sex": "boy"}}        
    }}
}

3.4.六、使用terms匹配多個值

GET /school/student/_search?pretty
{
"query": {
  "bool": {
    "must": { "terms": {"about": ["travel","history"]}}          
    }
}
}

term主要是用於精確的過濾好比說:」我愛你」

在match下面匹配能夠爲包含:我、愛、你、我愛等等的解析器

在term語法下面就精準匹配到:」我愛你」

3.4.七、Range過濾

Range過濾容許咱們按照指定的範圍查找一些數據:操做範圍:gt::大於,gae::大於等於,lt::小於,lte::小於等於

例子:

查找出大於20歲,小於等於25歲的學生

GET /school/student/_search?pretty
{
"query": {
  "range": {
  "age": {"gt":20,"lte":25}
        }
    }
  }
}

3.4.八、exists和 missing過濾

exists和missing過濾能夠找到文檔中是否包含某個字段或者是沒有某個字段

例子:

查找字段中包含age的文檔

GET /school/student/_search?pretty
{
"query": {
  "exists": {
  "field": "age"  
        }
    }
  }
}

3.4.九、bool的多條件過濾

用bool也能夠像以前match同樣來過濾多行條件:

must :: 多個查詢條件的徹底匹配,至關於 and 。
must_not :: 多個查詢條件的相反匹配,至關於 not 。
should :: 至少有一個查詢條件匹配, 至關於 or

例子:

過濾出about字段包含travel而且年齡大於20歲小於30歲的同窗

GET /school/student/_search?pretty
{
"query": {
  "bool": {
    "must": [
      {"term": {
        "about": {
          "value": "travel"
        }
      }},{"range": {
        "age": {
          "gte": 20,
          "lte": 30
        }
      }}
    ]
  }
}
}

3.4.十、查詢與過濾條件合併

一般複雜的查詢語句,咱們也要配合過濾語句來實現緩存,用filter語句就能夠來實現

例子:

查詢出喜歡旅行的,而且年齡是20歲的文檔

GET /school/student/_search?pretty
{
"query": {
  "bool": {
    "must": {"match": {"about": "travel"}},    
    "filter": [{"term":{"age": 20}}]
    }
}
}
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