闷葫芦博客

SearchAPI请求方式

  • URL
  • Request Body(DSL)

指定查询范围

语法 范围
/_search 集群上所以索引
/index1/_search index1
/index1,index2/_search index1,index2
/index*/_search index开头索引

# URL

  • q：指定查询语句
  • df：默认字段,不指定会对所有字段进行查询
  • sort：排序/from和size用于分页
  • profile：可以查看是如何执行的
GET /test/_doc/_search?q=name:'ymj'&df=title&sort=year:desc&from=0&size=10&timeout=1s
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# 1. 范查询
q=name:Beautiful Mind
q=name:"Beautiful Mind"
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Beautiful Mind =Beautiful OR Mind "Beautiful Mind" = Beautiful ANd Mind

# 2. 分组查询
q=name:(Beautiful Mind)
连个都要存在

分组
+表示must
-表示must_not
q=name:(+Beautiful -Mind)
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# 3. 布尔查询

AND/OR/NOT 或者 &&/||/!

q=name:(Beautiful NOT Mind)
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# 4. 范围查询
year:[2018 to 2019]
year:[* to 2019]
year:>=1980
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# 5. 通配符查询
title:中国*

模糊匹配
title:中国~1
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# DSL

基础了解

# 1. 全部查询
GET user/_search
{
  "query": {
    "match_all": {}
  }
}
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# 2. 匹配搜索
GET /user/_doc/_search
{
  "query": {
    "match": {
      "name":"中 国",
      "operator":"AND",
      "slop":1
    }
  }
}

operator 必须包含中和国
slop 中间可以模糊一个字段
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# 3. 分组匹配搜索
GET /user/_doc/_search
{
  "query": {
    "bool": {
      "should": [
        {
          "match": {
            "name":"中国"
          }
        },
        {
          "match": {
            "age":3
          }
        }
      ]
    }
  },
  "filter": [
    {
        "range": {
            "age": {
                "lt": 4
            }
        }
    }
    ]，
    "_source": ["name","age"],
    "sort": [
    {
      "age": {
        "order": "desc"
      }
    }
  ],
  "from": 0,
  "size": 10
}


gt > 
gte >=
lt <
lte <=

term 精确
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# 4.脚本搜索
GET /user/_doc/_search
{
  "script_fields":{
    "new_field":{
      "script":{
        "lang":"painless",
        "source":"doc['order_date'].value+'_hello'"
      }
    }
  }
}
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# 5. 高亮查询
GET /user/_doc/_search
{
  "query": {
    "match": {
      "name":"国" 
    }
  },
  "highlight": {
    "pre_tags": "<p class='red'>",
    "post_tags": "<p>", 
    "fields": {
      "name":{}
    }
  }, 
  "_source": ["name","age"],
}
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DSL中也可使用URL使用方式

← 6.索引(Index)的基础配置 →