文档的增删改查

1.新增

　　使用put进行新增，必须使用id。

PUT /nba/_doc/1
{
 "name":"哈登",
 "team_name":"⽕箭",
 "position":"得分后卫",
 "play_year":"10",
 "jerse_no":"13"
}

　　结果：

{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 0,
  "_primary_term" : 3
}

　　

2.新增

　　这种不指定id

POST /nba/_doc/
{
 "name":"哈登",
 "team_name":"⽕箭",
 "position":"得分后卫",
 "play_year":"10",
 "jerse_no":"13"
}

　　结果：

{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "xpGZJnEB_xXvz4I-POcw",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 1,
  "_primary_term" : 3
}

　　

3.查找

GET /nba/_doc/1

　　

4.说明

　　不存在的索引，新增文档，也可以新建出索引。不过，实验发现都是keyword类型。

PUT /wba/_doc/1
{
 "name":"哈登2",
 "team_name":"⽕箭",
 "position":"得分后卫",
 "play_year":"10",
 "jerse_no":"13"
}

　　结果：

{
  "_index" : "wba",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 1,
  "result" : "created",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 0,
  "_primary_term" : 1
}

　　查看索引：

GET /wba

　　结果：

{
  "wba" : {
    "aliases" : { },
    "mappings" : {
      "properties" : {
        "jerse_no" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        },
        "name" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        },
        "play_year" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        },
        "position" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        },
        "team_name" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1585491459227",
        "number_of_shards" : "1",
        "number_of_replicas" : "1",
        "uuid" : "5919dIHxQYGZXQ4DrtuCyQ",
        "version" : {
          "created" : "7020099"
        },
        "provided_name" : "wba"
      }
    }
  }
}

　　

5.指定操作类型

　　为啥需要呢

PUT /nba/_doc/1
{
 "name":"哈登2",
 "team_name":"⽕箭",
 "position":"得分后卫",
 "play_year":"10",
 "jerse_no":"13"
}

GET /nba/_doc/1

　　结果：

{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 5,
  "_seq_no" : 5,
  "_primary_term" : 3,
  "found" : true,
  "_source" : {
    "name" : "哈登2",
    "team_name" : "⽕箭",
    "position" : "得分后卫",
    "play_year" : "10",
    "jerse_no" : "13"
  }
}

　　然后，想新增

PUT /nba/_doc/1
{
 "name":"哈登",
 "team_name":"⽕箭",
 "position":"得分后卫",
 "play_year":"10",
 "jerse_no":"13"
}

GET /nba/_doc/1

　　结果：

# PUT /nba/_doc/1
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 6,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 6,
  "_primary_term" : 3
}


# GET /nba/_doc/1
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "1",
  "_version" : 6,
  "_seq_no" : 6,
  "_primary_term" : 3,
  "found" : true,
  "_source" : {
    "name" : "哈登",
    "team_name" : "⽕箭",
    "position" : "得分后卫",
    "play_year" : "10",
    "jerse_no" : "13"
  }
}

　　发现，不小心把前面的给覆盖了。

　　然后，怎么解决呢？

PUT /nba/_doc/1?op_type=create
{
 "name":"哈登2",
 "team_name":"⽕箭",
 "position":"得分后卫",
 "play_year":"10",
 "jerse_no":"13"
}

　　结果：

{
  "error": {
    "root_cause": [
      {
        "type": "version_conflict_engine_exception",
        "reason": "[1]: version conflict, document already exists (current version [6])",
        "index_uuid": "q_fuLgv1Sjyb8yncRsCWZQ",
        "shard": "0",
        "index": "nba"
      }
    ],
    "type": "version_conflict_engine_exception",
    "reason": "[1]: version conflict, document already exists (current version [6])",
    "index_uuid": "q_fuLgv1Sjyb8yncRsCWZQ",
    "shard": "0",
    "index": "nba"
  },
  "status": 409
}

　　

6.批量查询

　　post方式,get也可以 

POST /_mget
{
	"docs":[
	  {
		"_index": "nba",
		"_type": "_doc",
		"_id": 2
	}, 
	{
		"_index": "songs",
		"_type": "_doc",
		"_id": 1
	}
	]
}

　　效果：

#! Deprecation: [types removal] Specifying types in multi get requests is deprecated.
{
  "docs" : [
    {
      "_index" : "nba",
      "_type" : "_doc",
      "_id" : "2",
      "_version" : 1,
      "_seq_no" : 7,
      "_primary_term" : 3,
      "found" : true,
      "_source" : {
        "name" : "哈登2",
        "team_name" : "⽕箭",
        "position" : "得分后卫",
        "play_year" : "10",
        "jerse_no" : "13"
      }
    },
    {
      "_index" : "songs",
      "_type" : "_doc",
      "_id" : "1",
      "_version" : 8,
      "_seq_no" : 7,
      "_primary_term" : 1,
      "found" : true,
      "_source" : {
        "name" : "说好不哭",
        "author" : "周杰伦"
      }
    }
  ]
}

　　

7.更加简化的查询方式

POST /nba/_doc/_mget
{
  "docs":[
    {
      "_id":"1"
    },
    {
      "_id":"2"
    }
  ]
}

　　结果：

#! Deprecation: [types removal] Specifying types in multi get requests is deprecated.
{
  "docs" : [
    {
      "_index" : "nba",
      "_type" : "_doc",
      "_id" : "1",
      "_version" : 6,
      "_seq_no" : 6,
      "_primary_term" : 3,
      "found" : true,
      "_source" : {
        "name" : "哈登",
        "team_name" : "⽕箭",
        "position" : "得分后卫",
        "play_year" : "10",
        "jerse_no" : "13"
      }
    },
    {
      "_index" : "nba",
      "_type" : "_doc",
      "_id" : "2",
      "_version" : 1,
      "_seq_no" : 7,
      "_primary_term" : 3,
      "found" : true,
      "_source" : {
        "name" : "哈登2",
        "team_name" : "⽕箭",
        "position" : "得分后卫",
        "play_year" : "10",
        "jerse_no" : "13"
      }
    }
  ]
}

　　

8.更加简化的mget

　　

POST /nba/_doc/_mget
{
  "ids":["1","2"]
}

　　

9.修改

　　只更新了一部分字段

POST /nba/_update/2
{
 "doc":{
    "play_year":"1000",
    "jerse_no":"1300"
 }
}

GET /nba/_doc/2

　　结果：

# POST /nba/_update/2
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "2",
  "_version" : 8,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 14,
  "_primary_term" : 3
}


# GET /nba/_doc/2
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "2",
  "_version" : 8,
  "_seq_no" : 14,
  "_primary_term" : 3,
  "found" : true,
  "_source" : {
    "name" : "哈登2",
    "team_name" : "⽕箭",
    "position" : "得分后卫",
    "play_year" : "1000",
    "jerse_no" : "1300"
  }
}

　　

10.新增一个字段

POST /nba/_update/2
{
  "script":"ctx._source.age=19"
}
GET /nba/_doc/2

　　结果：

# POST /nba/_update/2
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "2",
  "_version" : 9,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 15,
  "_primary_term" : 3
}


# GET /nba/_doc/2
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "2",
  "_version" : 9,
  "_seq_no" : 15,
  "_primary_term" : 3,
  "found" : true,
  "_source" : {
    "name" : "哈登2",
    "team_name" : "⽕箭",
    "position" : "得分后卫",
    "play_year" : "1000",
    "jerse_no" : "1300",
    "age" : 19
  }
}

　　

11.删除一个文档

POST /nba/_update/2
{
  "script":"ctx._source.remove("age")"
}
GET /nba/_doc/2

　　结果：

# POST /nba/_update/2
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "2",
  "_version" : 10,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 17,
  "_primary_term" : 3
}


# GET /nba/_doc/2
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "2",
  "_version" : 10,
  "_seq_no" : 17,
  "_primary_term" : 3,
  "found" : true,
  "_source" : {
    "name" : "哈登2",
    "team_name" : "⽕箭",
    "position" : "得分后卫",
    "play_year" : "1000",
    "jerse_no" : "1300"
  }
}

　　

12.根据指定参数，更新文档

POST /nba/_update/3
{
	"script": {
		"source": "ctx._source.allstar += params.allstar",
		"params": {
			"allstar": 4
		}
	},
	"upsert": {
		"allstar": 1
	}
}

　　结果：

# POST /nba/_update/3
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "3",
  "_version" : 3,
  "result" : "updated",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 20,
  "_primary_term" : 3
}


# GET /nba/_doc/3
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "3",
  "_version" : 3,
  "_seq_no" : 20,
  "_primary_term" : 3,
  "found" : true,
  "_source" : {
    "allstar" : 9
  }
}

　　发现这里version是3。

　　第一次不存在则为1，第二次是5，第三次是9.

　　upsert：不存在，就是后面的数，存在就使用上面的数据

13.删除

DELETE /nba/_doc/3
GET /nba/_doc/3

　　结果：

# DELETE /nba/_doc/3
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "3",
  "_version" : 4,
  "result" : "deleted",
  "_shards" : {
    "total" : 2,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 21,
  "_primary_term" : 3
}


# GET /nba/_doc/3
{
  "_index" : "nba",
  "_type" : "_doc",
  "_id" : "3",
  "found" : false
}