elasticsearch的基本操作之文檔

在上一篇文章中我們介紹了elasticsearch的基本概念以及索引和索引映射的restful接口和它們之間的關係https://blog.csdn.net/weixin_42214548/article/details/107094416,今天再來給大家介紹一下elasticsearch中的文檔以及它的restful接口的使用

 

文檔

創建文檔

POST http://127.0.0.1:9200/index_test/_doc/id

URL結尾可以指定文檔的id,如果不指定文檔的id則會自動生成一個id

請求參數

{
    "id":1001,
    "sex": 2,
    "realname": "大帥比",
    "username":"有退休金的老李"
}

響應

{
    "_index": "index_test",
    "_type": "_doc",
    "_id": "zv0HEHMBnqHViiCdQnfE",
    "_version": 2,
    "result": "updated",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 1,
    "_primary_term": 1
}

elasticsearch的結果

 

可以看到最後成功的響應了,並且大家可以注意返回的參數中有一個_type和_version,_type表示elasticsearch中索引的類型,但是我們創建索引的時候沒有指定類型,在新版本中類型的概念已經被弱化默認就是文檔,_version則是每次操作了索引之後的一個版本號,每次都會加1

 

刪除文檔

DELETE http://127.0.0.1:9200/index_test/_doc/zv0HEHMBnqHViiCdQnfE

{
    "_index": "index_test",
    "_type": "_doc",
    "_id": "zv0HEHMBnqHViiCdQnfE",
    "_version": 3,
    "result": "deleted",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 2,
    "_primary_term": 1
}

 

修改文檔

修改文檔可以分爲局部修改和全量修改,下面爲大家顯示一下

全量修改

PUT  http://127.0.0.1:9200/index_test/_doc/zv0HEHMBnqHViiCdQnfE

{
    "id":1001,
    "sex": 2,
    "realname": "大帥比2222222",
    "username":"有退休金的老李"
}

{
    "_index": "index_test",
    "_type": "_doc",
    "_id": "zv0HEHMBnqHViiCdQnfE",
    "_version": 2,
    "result": "updated",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 4,
    "_primary_term": 1
}

局部修改

POST  http://127.0.0.1:9200/index_test/_doc/zv0HEHMBnqHViiCdQnfE/_update

{
   "doc":{
       "username":"有退休金的老李11111"
   }
}

{
    "_index": "index_test",
    "_type": "_doc",
    "_id": "zv0HEHMBnqHViiCdQnfE",
    "_version": 3,
    "result": "updated",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 5,
    "_primary_term": 1
}