1. index

1.1 查詢所有index

GET /_cat/indices?v

1.2 新增index

#新增一個名為pigg的index
PUT /pigg

1.3 刪除index

#刪除pigg這個index,產線千萬別這麼做,刪了就完了
DELETE /pigg

2. document

2.1 新增document

PUT /pigg/_doc/1
{
  "name": "三爺",
  "age": 29,
  "hometown": "鹽城",
  "gender": "male"
}

PUT /pigg/_doc/2
{
  "name":
 
 "珣爺",
  "age": 28,
  "hometown": "徐州",
  "gender": "female"
}

PUT /pigg/_doc/3
{
  "name": "米可",
  "age": 1,
  "hometown": "蘇州",
  "gender": "female"
}

2.2 查詢document

2.2.1 查詢index的所有document

GET /pigg/_search

2.2.1 根據id查詢document

GET /pigg/_doc/1?pretty

返回結果:

{
  "_index": "pigg",
  "_type"
 
: "_doc",
  "_id": "1",
  "_version": 4,
  "found": true,
  "_source": {
    "name": "三爺",
    "age": 29,
    "hometown": "鹽城",
    "gender": "male"
  }
}

2.2.2 用sort排序查詢

#對age進行倒序查詢
GET /pigg/_search
{
  "query": {"match_all": {}},
  "sort": [
    {
      "age": {
        "order": "desc"
      }
 

    }
  ]
}

2.2.3 用from和size分頁查詢

#查詢前2條資料, from是從0開始的
GET /pigg/_search
{
  "query": {"match_all": {}},
  "sort": [
    {
      "age": {
        "order": "desc"
      }
    }
  ],
  "from": 0,
  "size": 2
}

2.3 修改document

2.3.1 用put替換document

查詢當前pigg表裡id=1的文件

GET /pigg/_doc/1?pretty

返回如下：

{
  "_index": "pigg",
  "_type": "_doc",
  "_id": "1",
  "_version": 4,
  "found": true,
  "_source": {
    "name": "三爺",
    "age": 29,
    "hometown": "鹽城",
    "gender": "male"
  }
}

用put方式更新id=1的文件

PUT /pigg/_doc/1
{
  "name": "鹽城三爺"
}

再次查詢id=1的文件

{
  "_index": "pigg",
  "_type": "_doc",
  "_id": "1",
  "_version": 5,
  "found": true,
  "_source": {
    "name": "鹽城三爺"
  }
}

通過上面發現用put是替換了整個文件，而不是更新name這一個欄位

2.3.2 用post更新document

先恢復id=1的文件為一開始的資料,然後執行如下語句
修改name,並新增interesting這個欄位

POST /pigg/_doc/1/_update?pretty
{
  "doc":{
      "name": "鹽城鼕鼕",
      "interesting": "watching TV"
  }
}

再次查詢id=1的文件

{
  "_index": "pigg",
  "_type": "_doc",
  "_id": "1",
  "_version": 8,
  "found": true,
  "_source": {
    "name": "鹽城鼕鼕",
    "age": 29,
    "hometown": "鹽城",
    "gender": "male",
    "interesting": "watching TV"
  }
}

這時發現用post更新的是文件的區域性欄位,原來有的欄位更新,沒有的欄位則新增這個欄位

2.3.3 用script更新document

查詢當前id=1的人的age是29,現在要對age加1

POST /pigg/_doc/1/_update
{
  "script": "ctx._source.age += 1"
}

再次查詢id=1的文件,發現age已經是30了

{
  "_index": "pigg",
  "_type": "_doc",
  "_id": "1",
  "_version": 9,
  "found": true,
  "_source": {
    "name": "鹽城鼕鼕",
    "age": 30,
    "hometown": "鹽城",
    "gender": "male",
    "interesting": "watching TV"
  }
}

2.4 刪除document

DELETE /pigg/_doc/1