你不知道的Elasticsearch检索

1.SearchAPI

es支持两种基本方式检索

1.通过使用rest request uri 发送搜索参数(uri+检索参数)

#查询所有信息，根据用户编号（默认10条记录）
GET bank/_search?q=*&sort=account_number:asc

 

 

2.通过使用rest request body 来发送他们(uri+请求体)

GET bank/_search
{
  "query": {
    "match_all": {}
  },
  "sort": [
    {
      "account_number": "asc"
    },
    {
      "balance":"desc"
    }
  ]
}

 

 

2.Query DSL

#from，size分页,_source返回部分字段
GET bank/_search
{
  "query": {
    "match_all": {}
  },
  "sort": [
    {
      "balance": {
        "order": "desc"
      }
    }
  ],
  "from": 0,
  "size": 5,
  "_source": ["balance","firstname"]
}

3.match匹配

#全文检索
GET bank/_search
{
  "query": {
    "match": {
      "address": "kings"
    }
  }
}

4.match_phrase短语匹配

GET bank/_search
{
  "query": {
    "match_phrase": {
      "address": "mill lane"
    }
  }
}


#短语匹配与关键字匹配，address.keyword精确匹配，match_phrase会进行分词
GET bank/_search
{
  "query": {
    "match": {
      "address.keyword": "789 Madison"
    }
  }
}


GET bank/_search
{
  "query": {
    "match_phrase": {
      "address": "789 Madison"
    }
  }
}

5.multi_match多字段匹配

#"address","city"字段中包含mill或者movicn(支持分词)
GET bank/_search
{
  "query": {"multi_match": {
    "query": "mill movicn",
    "fields": ["address","city"]
  }}
}

6.bool复核查询

#must必须满足,must_not必须不满足，should有没有都可以
GET bank/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "gender": "M"
          }
        },
        {
          "match": {
            "address": "mill"
          }
        }
      ],
      "must_not": [
        {"match": {
          "age": "28"
        }}
      ],
      "should": [
        {"match": {
          "lastname": "Wallace"
        }}
      ]
    }
  }
}

 

 

7.filter结果过滤

#不会计算相关性得分(过滤最后结果)
GET bank/_search
{
  "query": {
    "bool": {
      "filter": {
        "range": {
          "age": {
            "gte": 18,
            "lte": 30
          }
        }
      }
    }
  }
}

8.term（非text（字符串）字段）

#等同于match
GET bank/_search
{
  "query": {
    "term": {
      "age": "28"
    }
  }
}