elasticsearch系列(二): 命令操作

基本操作 (6.x 版本)

• 创建索引

curl -X PUT http://192.168.183.220:9200/test -H 'Content-Type: application/json' -d'
{
  "settings": {
    "number_of_shards": 5,
    "number_of_replicas": 0
  },
  "mappings": {
    "_doc": {
      "properties": {
        "id": {
          "type": "long"
        },
        "name": {
          "type": "text"
        }
      }
    }
  }
}
'

• 删除索引

curl -X DELETE http://192.168.183.220:9200/test

• 添加数据

curl -X POST http://192.168.183.220:9200/test -H 'Content-Type: application/json' -d'
{
	"id": 1,
	"name": "test"
}
'

• 更新数据 (id相同即更新)

curl -X POST http://192.168.183.220:9200/test -H 'Content-Type: application/json' -d'
{
	"id": 1,
	"name": "test01"
}
'

• 查询数据

curl -X POST http://192.168.183.220:9200/test/_search -H 'Content-Type: application/json' -d'
{
	"query": {
		"match": {
			"name": "test01"
		}
	}
}
'

• 查看索引

curl -X GET http://192.168.183.220:9200/test

• 添加别名

curl -X PUT http://192.168.183.220:9200/test/_alias/abc

• 查看索引列表

curl -X GET http://192.168.183.220:9200/_cat/indices?v

• 查看集群状态

curl -X GET http://192.168.183.220:9200/_cat/health?v

ik操作

• 创建索引

curl -X PUT http://192.168.183.220:9200/ik -H 'Content-Type: application/json' -d'
{
	"settings": {
		"number_of_shards": 5,
		"number_of_replicas": 0,
		"analysis": {
			"analyzer": {
				"ik": {
					"tokenizer": "ik_max_word"
				}
			}
		}
	},
	"mappings": {
		"_doc": {
			"properties": {
				"content": {
					"type": "text",
					"analyzer": "ik_max_word"
				}
			}
		}
	}
}
'

• 分词分析(ik_smart)

curl -X POST http://192.168.183.220:9200/ik/_analyze -H 'Content-Type: application/json' -d'
{
  "analyzer": "ik_smart",
  "text": ["我是中国人"]
}
'

结果:

{
    "tokens": [
        {
            "token": "我",
            "start_offset": 0,
            "end_offset": 1,
            "type": "CN_CHAR",
            "position": 0
        },
        {
            "token": "是",
            "start_offset": 1,
            "end_offset": 2,
            "type": "CN_CHAR",
            "position": 1
        },
        {
            "token": "中国人",
            "start_offset": 2,
            "end_offset": 5,
            "type": "CN_WORD",
            "position": 2
        }
    ]
}

• 分词分析(ik_max_word)

curl -X POST http://192.168.183.220:9200/ik/_analyze -H 'Content-Type: application/json' -d'
{
  "analyzer": "ik_max_word",
  "text": ["我是中国人"]
}
'

结果:

{
    "tokens": [
        {
            "token": "我",
            "start_offset": 0,
            "end_offset": 1,
            "type": "CN_CHAR",
            "position": 0
        },
        {
            "token": "是",
            "start_offset": 1,
            "end_offset": 2,
            "type": "CN_CHAR",
            "position": 1
        },
        {
            "token": "中国人",
            "start_offset": 2,
            "end_offset": 5,
            "type": "CN_WORD",
            "position": 2
        },
        {
            "token": "中国",
            "start_offset": 2,
            "end_offset": 4,
            "type": "CN_WORD",
            "position": 3
        },
        {
            "token": "国人",
            "start_offset": 3,
            "end_offset": 5,
            "type": "CN_WORD",
            "position": 4
        }
    ]
}

• 添加数据

curl -X POST http://192.168.183.220:9200/ik/_doc/1 -H 'Content-Type: application/json' -d'
{"content":"美国留给伊拉克的是个烂摊子吗"}
'
curl -X POST http://192.168.183.220:9200/ik/_doc/2 -H 'Content-Type: application/json' -d'
{"content":"公安部：各地校车将享最高路权"}
'
curl -X POST http://192.168.183.220:9200/ik/_doc/3 -H 'Content-Type: application/json' -d'
{"content":"中韩渔警冲突调查：韩警平均每天扣1艘中国渔船"}
'
curl -X POST http://192.168.183.220:9200/ik/_doc/4 -H 'Content-Type: application/json' -d'
 {"content":"中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"}
'

• 查询数据

curl -X POST http://192.168.183.220:9200/ik/_search -H 'Content-Type: application/json' -d'
{
	"query": {
		"term": {
			"content": "中国"
		}
	}
}
'

结果:

{
    "took": 13,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": 2,
        "max_score": 0.6489038,
        "hits": [
            {
                "_index": "ik",
                "_type": "_doc",
                "_id": "4",
                "_score": 0.6489038,
                "_source": {
                    "content": "中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"
                }
            },
            {
                "_index": "ik",
                "_type": "_doc",
                "_id": "3",
                "_score": 0.2876821,
                "_source": {
                    "content": "中韩渔警冲突调查：韩警平均每天扣1艘中国渔船"
                }
            }
        ]
    }
}

参考:

• https://www.elastic.co/guide/en/elasticsearch/reference/6.6/mapping.html
• https://cloud.tencent.com/developer/article/1621246