创建文档

发POST请求

http://127.0.0.1:9200/demo/_doc

请求数据：

{
    "username":"小白白",
    "age":22,
    "address":"中国上海"
}

响应：

{
	"_index": "demo",
	"_type": "_doc",
	"_id": "wwKD_nsBW1VSDLfjekOE",
	"_version": 1,
	"result": "created",
	"_shards": {
		"total": 2,
		"successful": 1,
		"failed": 0
	},
	"_seq_no": 0,
	"_primary_term": 1
}

由于没有指定数据唯一性标识（ID），默认情况下，ES服务器会随机生成一个。

自定义唯一性标识，需要在创建时指定

http://127.0.0.1:9200/demo/_doc/1

http://127.0.0.1:9200/demo/_create/2

响应：

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

注意：增加数据，明确数据主键，可以使用POST与PUT请求

查看文档

发GET请求：
http://127.0.0.1:9200/demo/_doc/1

响应：

{
	"_index": "demo",
	"_type": "_doc",
	"_id": "1",
	"_version": 1,
	"_seq_no": 1,
	"_primary_term": 1,
	"found": true,
	"_source": {
		"username": "小白2",
		"age": 22,
		"address": "中国上海2"
	}
}

修改文档

发POST请求 ：

http://127.0.0.1:9200/demo/_doc/1

请求参数：

{
    "username":"修改文档",
    "age":22,
    "address":"中国上海2"
}

响应：

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

修改字段

修改数据时只修改数据的局部信息

发POST请求 ：

http://127.0.0.1:9200/demo/_update/1

请求数据：

{
  "doc": {
    "username":"update field"
  }
}

响应：

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

删除文档

删除文档不会立即从磁盘上移除，只是被标记成已删除（逻辑删除）

根据文档的唯一性标识进行删除

根据条件对多条数据进行删除

发DELETE请求 ：

http://127.0.0.1:9200/demo/_doc/4

响应：

{
	"_index": "demo",
	"_type": "_doc",
	"_id": "4",
	"_version": 2,
	"result": "deleted",
	"_shards": {
		"total": 2,
		"successful": 1,
		"failed": 0
	},
	"_seq_no": 6,
	"_primary_term": 2
}

发送POST请求：

http://127.0.0.1:9200/demo/_delete_by_query

请求数据：

{
	"query": {
		"match": {
			"username": "update field"
		}
	}
}

响应：

{
	"took": 81,
	"timed_out": false,
	"total": 1,
	"deleted": 1,
	"batches": 1,
	"version_conflicts": 0,
	"noops": 0,
	"retries": {
		"bulk": 0,
		"search": 0
	},
	"throttled_millis": 0,
	"requests_per_second": -1,
	"throttled_until_millis": 0,
	"failures": []
}

查询所有

发送Get请求：

http://127.0.0.1:9200/demo/_search

响应：

{
	"took": 632,
	"timed_out": false,
	"_shards": {
		"total": 1,
		"successful": 1,
		"skipped": 0,
		"failed": 0
	},
	"hits": {
		"total": {
			"value": 4,
			"relation": "eq"
		},
		"max_score": 1,
		"hits": [
			{
				"_index": "demo",
				"_type": "_doc",
				"_id": "wwKD_nsBW1VSDLfjekOE",
				"_score": 1,
				"_source": {
					"username": "小白白",
					"age": 22,
					"address": "中国上海"
				}
			},
			{
				"_index": "demo",
				"_type": "_doc",
				"_id": "1",
				"_score": 1,
				"_source": {
					"username": "update field",
					"age": 22,
					"address": "中国上海2"
				}
			}
		]
	}
}