elasticsearch 简单搜索

//查询所有
GET _search
{
  "query": {
    "match_all": {}
  }
}
//创建一个索引（类似数据库）
PUT /heima
{
  "settings": {
    "number_of_shards": 1,//有多少分片，分布式，有几个机器就设置几
    "number_of_replicas": 0//备份
  }
}

GET /heima

DELETE /heima
//创建映射（类似数据表）
PUT /heima/_mapping/goods
{
  "properties": {
    "title":{
      "type": "text",
      "analyzer": "ik_max_word"//使用分词插件进行分词
    },
    "images":{
      "type": "keyword",
      "index": false
    },
    "price":{
      "type": "float"
    }
  }
}

POST /heima/goods
{
  "title":"小米手机",
  "images":"http://www.baidu.com",
  "price":1699.00
}

POST /heima/goods/1
{
  "title":"小米手机",
  "images":"http://www.baidu.com",
  "price":1699.00
}
//查询所有
GET /heima/_search
{
  "query": {
    "match_all": {}
  }
}
//删除id为lbjzK3EB7kI7c5hUnFzf的数据
DELETE /heima/goods/lbjzK3EB7kI7c5hUnFzf

POST /heima/goods/2
{
  "title":"小米电视",
  "images":"http://www.baidu.com",
  "price":3699.00
}

POST /heima/goods/3
{
  "title":"华为手机",
  "images":"http://www.baidu.com",
  "price":1699.00,
  "subTitle":"小米"
}
//多字段搜索
GET /heima/_search
{
  "query": {
    "multi_match": {
      "query": "小米",
      "fields": ["title","subTitle"]
    }
  }
}
//词条搜索
GET /heima/_search
{
  "query": {
    "term": {
      "title": {
        "value": "小米"
      }
    }
  }
}
//多词条搜索
GET /heima/_search
{
  "query": {
    "terms": {
      "title": [
        "小米",
        "华为"
      ]
    }
  }
}
GET /heima/_search
{
  "query": {
    "bool": {
      "should": [
        {
          "match": {
            "title": "小米"
          }
        },
        {
          "term": {
            "price": {
              "value": "1699"
            }
          }
        }
      ]
    }
  }
}

GET /heima/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "title": "小米"
          }
        },
        {
          "term": {
            "price": {
              "value": "1699"
            }
          }
        }
      ]
    }
  }
}

GET /heima/_search
{
  "query": {
    "bool": {
      "should": [
        {
          "match": {
            "title": "小米"
          }
        },
        {
          "terms": {
            "price": [
              1699,1899
              ]
              
          }
        }
      ]
    }
  }
}

GET /heima/_search
{
  "query": {
    "range": {
      "price": {
        "gte": 10,
        "lte": 20000
      }
    }
  }
}

GET /heima/_search
{
  "query": {
    "range": {
      "price": {
        "gte": 10,
        "lte": 20000
      }
    }
  }
}

GET /heima/_search
{
  "query": {
    "fuzzy": {
      "title":{
        "value": "大机",
        "fuzziness": 2
      }
    }
  }
}
GET /heima/_search
{
  "size": 0, 
  "aggs": {
    "brandAggs": {
      "terms": {
        "field": "brand"
      },
      "aggs": {
        "price_avg": {
          "avg": {
            "field": "price"
          }
        }
      }
    }
  }
}