[TOC] # 簡介 為了能更快的同時檢索多個文檔 mget API參數是一個docs數組,數組的每個節點定義一個文檔的`_index,_type,_id`元數據  我們先創建出一些數據,然后我們看下 ~~~ GET /library/books/1 GET /library/books/2 GET /library/books/3 GET /shakespeare/line/1 GET /shakespeare/line/2 GET /shakespeare/line/3 ~~~ # 一起獲取下 ~~~ # 數組[] GET /_mget { "docs": [ { "_index": "library", "_type": "books", "_id": 1 }, { "_index": "library", "_type": "books", "_id": 2 }, { "_index": "library", "_type": "books", "_id": 3 }, { "_index": "shakespeare", "_type": "line", "_id": 1 }, { "_index": "shakespeare", "_type": "line", "_id": 2 }, { "_index": "shakespeare", "_type": "line", "_id": 3 } ] } ~~~ # 可以指定你想獲取的字段 ~~~ # 也可以指定_source字段,獲取你想要的 GET /_mget { "docs": [ { "_index": "library", "_type": "books", "_id": 1, "_source": "title" }, { "_index": "library", "_type": "books", "_id": 2, "_source": "name" }, { "_index": "library", "_type": "books", "_id": 3, "_source": "price" }, { "_index": "shakespeare", "_type": "line", "_id": 1, "_source": "name" }, { "_index": "shakespeare", "_type": "line", "_id": 2, "_source": ["name","password"] }, { "_index": "shakespeare", "_type": "line", "_id": 3, "_source": "password" } ] } ~~~ # 獲取相同index相同type下不同ID的文檔 ~~~ GET /library/books/_mget { "docs": [ {"_id": 1}, {"type":"books","_id":3} ] } ~~~ # 可以這樣簡便的寫 ~~~ GET /library/books/_mget { "ids": ["1", "3"] } ~~~