ElasticSearch搜索例子

ElasticSearch版本7.17.3, hotel 搜索例子

GET _search
{
  "query": {
    "match_all": {}
  }
}

GET /


POST /_analyze
{
  "text": "黑马程序员学习java的太棒了，奥利给！",
  "analyzer": "ik_smart"
}


POST /_analyze
{
  "text": "黑马程序员学习java太棒了",
  "analyzer": "ik_max_word"
}

PUT /heima
{
  "mappings": {
    "properties": {
      "info": {
        "type": "text",
        "analyzer": "ik_smart"
      },
      "email": {
        "type": "keyword",
        "index": false
      },
      "name": {
        "type": "object",
        "properties": {
          "firstName": {
            "type": "keyword",
            "index": true
          },
          "lastName": {
            "type": "keyword"
          }
        }
      }
    }
  }
}

GET heima


PUT /heima/_mapping
{
  "properties": {
    "age": {
      "type": "integer"
    }
  }
}

POST /heima/_doc/1
{
  "info": "黑马程序员讲师Java",
  "email": "1@1.com",
  "name": {
    "firtName": "李",
    "lastName": "建舜"
  },
  "age": 18
}

GET /heima/_doc/1

PUT /heima/_doc/3
{
  "info": "黑马程序员Python讲师",
  "email": "1@1.com",
  "name": {
    "firtName": "李",
    "lastName": "建舜"
  },
  "age": 18
}

POST /heima/_update/1
{
  "doc": {
     "info" : "黑马程序员Java讲师"
  }
}

PUT /hotel
{
  "mappings": {
    "properties": {
      "id":{
        "type": "keyword"
      },
      "name":{
        "type": "text",
        "analyzer": "ik_max_word",
        "copy_to": "all"
      },
      "address": {
        "type": "keyword",
        "index": false
      },
      "price":{
        "type": "integer"
      },
      "score":{
        "type": "integer"
      },
      "brand":{
        "type": "keyword",
        "copy_to": "all"
      },
      "city":{
        "type": "keyword"
      },
      "starName":{
        "type": "keyword"
      },
      "business":{
        "type": "keyword",
        "copy_to": "all"
      },
      "location": {
        "type": "geo_point"
      },
      "pic": {
        "type": "keyword",
        "index": false
      },
      "all": {
        "type": "text",
        "analyzer": "ik_max_word"
      }
    }
  }
}


DELETE /hotel

GET /hotel/_settings

GET /hotel/_search




GET /hotel/_search
{
  "query": {
    "match_all": {}
  }
}


GET /hotel/_search
{
  "query": {
    "match": {
      "all": "外滩如家"
    }
  }
}


GET /hotel/_search
{
  "query": {
    "multi_match": {
      "query": "外滩如家",
      "fields": ["brand", "name", "business"]
    }
  }
}

GET /hotel/_search
{
  "query": {
    "term": {
      "city": {
        "value": "深圳"
      }
    }
  }
}

GET /hotel/_search
{
  "query": {
    "range": {
      "price": {
        "gte": 100,
        "lte": 300
      }
    }
  }
}

GET /hotel/_search
{
  "query": {
    "geo_distance": {
      "distance": "3km",
      "location": "31.21, 121.5"
    }
  }
}



GET /hotel/_search
{
  "query": {
    "function_score": {
      "query": {
        "match": {
          "all": "外滩"
        }
      },
      "functions": [
        {
          "filter": {
            "term": {
              "brand": "如家"
            }
          },
          "weight": 10
        }
      ],
      "boost_mode": "sum"
    }
  }
}


GET /hotel/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "term": {
            "city": {
              "value": "上海"
            }
          }
        }
      ],
      "should": [
        {
          "term": {
            "brand": {
              "value": "皇冠假日"
            }
          }
        },
        {
          "term": {
            "brand": {
              "value": "华美达"
            }
          }
        }
      ],
      "must_not": [
        {
          "range": {
            "price": {
              "lte": 500
            }
          }
        }
      ],
      "filter": [
        {
          "range": {
            "score": {
              "gte": 45
            }
          }
        }
      ]
    }
  }
}

GET /hotel/_search
{
  "query": {
    "match_all": {}
  },
  "sort": [
    {
      "score": {
        "order": "desc"
      },
      "price": {
        "order": "asc"
      }
    }
  ]
}


GET /hotel/_search
{
  "query": {
    "match_all": {}
  },
  "sort": [
    {
      "_geo_distance": {
        "location": {
          "lat": 31.034661,
          "lon": 121.612282
        },
        "order": "asc",
        "unit": "km"
      }
    }
  ]
}

# 分页
GET /hotel/_search
{
  "query": {
    "match_all": {}
  },
  "sort": [
    {
      "price": {
        "order": "asc"
      }
    }
  ],
  "from": 10,
  "size": 20
}

# 高亮，搜索结果处理整体语法
GET /hotel/_search
{
  "query": {
    "match": {
      "name": "如家"
    }
  },
  "from": 0, 
  "size": 20, 
  "sort": [
    {
      "price": {
        "order": "asc"
      },
      "_geo_distance": {
        "location": {
          "lat": 31.034661,
          "lon": 121.612282
        },
        "order": "asc",
        "unit": "km"
      }
    }
  ], 
  "highlight": {
    "fields": {
      "name": {
        "require_field_match": "false", 
        "pre_tags": "<em>",
        "post_tags": "</em>"
      }
    }
  }
}


# 聚合Bucket
GET /hotel/_search
{
  "size": 0,
  "aggs": {
    "brandAgg": {
      "terms": {
        "field": "brand",
        "order": {
          "_count": "asc"
        }, 
        "size": 20
      }
    }
  }
}

GET /hotel/_search
{
  "query": {
    "range": {
      "price": {
        "lte": 200
      }
    }
  }, 
  "size": 0,
  "aggs": {
    "brandAgg": {
      "terms": {
        "field": "brand",
        "order": {
          "_count": "asc"
        }, 
        "size": 20
      }
    }
  }
}

# 聚合Metrics
GET /hotel/_search
{
  "size": 0,
  "aggs": {
    "brandAgg": {
      "terms": {
        "field": "brand",
        "size": 20,
        "order": {
          "scoreAgg.avg": "desc"
        }
      },
      "aggs": {
        "scoreAgg": {
          "stats": {
            "field": "score"
          }
        }
      }
    }
  }
}