Multi GET API介绍

傷城~ 2023-07-13 12:13 8阅读 0赞

\#先添加几个文档

PUT /lib/user/1
    {
      "first_name":"Jane",
      "last_name":"Smith",
      "age":36,
      "about":"I like to collect rock albums",
      "interests":["music"]
    }
    
    PUT /lib/user/2
    {
      "first_name":"Jane",
      "last_name":"tom",
      "age":38,
      "about":"I like to collect rock albums",
      "interests":["music"]
    }

获取

#批量获取文档 Multi GET API
    GET /_mget
    {
      "docs":[
          {"_index":"lib",
          "_type":"user",
          "_id":1
          },
          {
          "_index":"lib",
          "_type":"user",
          "_id":2
          },
          {
          "_index":"lib",
          "_type":"user",
          "_id":3
          }
          
        ]
      
    }

返回信息：

{
      "docs" : [
        {
          "_index" : "lib",
          "_type" : "user",
          "_id" : "1",
          "_version" : 1,
          "_seq_no" : 7,
          "_primary_term" : 1,
          "found" : true,
          "_source" : {
            "first_name" : "Jane",
            "last_name" : "Smith",
            "age" : 36,
            "about" : "I like to collect rock albums",
            "interests" : [
              "music"
            ]
          }
        },
        {
          "_index" : "lib",
          "_type" : "user",
          "_id" : "2",
          "_version" : 1,
          "_seq_no" : 3,
          "_primary_term" : 1,
          "found" : true,
          "_source" : {
            "first_name" : "Jane",
            "last_name" : "tom",
            "age" : 38,
            "about" : "I like to collect rock albums",
            "interests" : [
              "music"
            ]
          }
        },
        {
          "_index" : "lib",
          "_type" : "user",
          "_id" : "3",
          "found" : false
        }
      ]
    }

文档id=1和文档id=2返回true  文档id=3的返回false 因为文档3没有添加

## **获取文档指定的字段** ##

#获取指定字段
    GET /_mget
    {
      "docs":[
          {"_index":"lib",
          "_type":"user",
          "_id":1,
          "_source": "interests"
          },
          {
          "_index":"lib",
          "_type":"user",
          "_id":2,
          "_source":["interests","age"]
          }
        ]
      
    }

获取结果：

{
      "docs" : [
        {
          "_index" : "lib",
          "_type" : "user",
          "_id" : "1",
          "_version" : 1,
          "_seq_no" : 7,
          "_primary_term" : 1,
          "found" : true,
          "_source" : {
            "interests" : [
              "music"
            ]
          }
        },
        {
          "_index" : "lib",
          "_type" : "user",
          "_id" : "2",
          "_version" : 1,
          "_seq_no" : 3,
          "_primary_term" : 1,
          "found" : true,
          "_source" : {
            "interests" : [
              "music"
            ],
            "age" : 38
          }
        }
      ]
    }