ES常见操作

• 手动mapping

PUT /product
{
  "settings": {
    "analysis": {
      "analyzer": {
        "ik": {
          "tokenizer": "ik_max_word"
        }
      }
    }
  },
  "mappings": {
    "properties": {
      "id": {
        "type": "keyword"
      },
      "title": {
        "type": "text",
        "analyzer": "ik_max_word",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "content": {
        "type": "text",
        "analyzer": "ik_max_word"
      },
      "module": {
        "type": "text"
      },
      "role": {
        "type": "text"
      },
      "top_flag": {
        "type": "integer"
      },
      "hits": {
        "type": "long"
      },
      "urls": {
        "type": "text"
      },
       "order_num": {
        "type": "integer"
      },
      "create_time": {
        "type": "date",
        "format": "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis"
      },
      "update_time": {
        "type": "date",
        "format": "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis"
      }
    }
  }
}

• 批量插入 注意json不能换行

POST /_bulk
{ "index":  { "_index": "product",  "_id": "1" }}
{ "name" : "xiaomi phone", "desc" :  "shouji zhong de zhandouji",  "date": "2021-06-01",  "price" :  3999,  "tags": [ "xingjiabi", "fashao", "buka" ]}
{ "create": { "_index": "product",  "_id": "2" }}
{ "name" : "xiaomi nfc phone",  "desc" :  "zhichi quangongneng nfc,shouji zhong de jianjiji", "date": "2021-06-02",  "price" :  4999,  "tags": [ "xingjiabi", "fashao", "gongjiaoka" ]}
{ "create": { "_index": "product",  "_id": "3" }}
{ "name" : "nfc phone", "desc" :  "shouji zhong de hongzhaji", "date": "2021-06-03", "price" :  2999,  "tags": [ "xingjiabi", "fashao", "menjinka" ]}

• 删除索引

DELETE product

• 单条插入

PUT /product/_doc/2
{
    "name" : "xiaomi phone",
    "desc" :  "shouji zhong de zhandouji",
    "date": "2021-06-01",
    "price" :  3999,
    "tags": [ "xingjiabi", "fashao", "buka" ]
}

GET product/_mapping
GET product/_setting
GET product/_search
GET product/_doc/1
GET /product/_search?q=name:xiaomi

## 全文检索
GET /product/_search
{
  "query": {
    "match": {
      "name": "xiao nfc"
    }
  }
}

## 多字段全文检索 
GET /product/_search
{
   "query":{
       "multi_match":{
          "query":"行动客户",
          "fields":["title","content"]
      }
   }
}

## 查看ik_smart分词结果
POST _analyze
{
  "analyzer": "ik_smart",
  "text": "特工红海特别探索"
}

## 查看ik_max_word分词结果
POST _analyze
{
  "analyzer": "ik_max_word",
  "text": "活动什么时候关闭"
}

• 删除索引 & 删除数据

## 删除索引
DELETE product

## 按条件删除数据
POST product/_delete_by_query
{
  "query": { 
    "match_all": {
      
    }
  }
}

## 批量更新
POST /product/_update_by_query
{
    "script": {
        "inline": "ctx._source.order_num = ctx._source.id"
    },
    "query": {
        "match": {
            "top_flag": 1
        }
    }
}

## 单条更新
PUT /product/_doc/1 
{ "count": 5 }



## 仅返回所需字段
GET /product/_search
{
    "_source": {
        "includes": ["id","top_flag","order_num"]
    },
    "size": 20,
    "from": 0,
    "query": {
        "bool": {
            "must": [{
                "match": {
                    "top_flag": "1"
                }
            }]
        }
    }
}

• ES 按前缀批量删除索引（设置超时时间，默认为30s）

curl -XDELETE 'http://localhost:9200/plume_log_run_202206160*?master_timeout=5m'