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elasticSearch多获取api(批量获取_mget)

发布时间：2021-08-31 21:35:34编辑：雪饮阅读（）

elasticSearch中_mget的api主要用于对文档的批量获取，至于这个获取规则则在请求正文中以doc的json数组形式传参。Doc数组决定要获取的索引、映射、id等

一个_mget的请求实例如：
Post http://localhost:9200/_mget
请求正文：
{
   "docs":[
      {
         "_index": "schools", "_type": "school", "_id": "1"
      },
 
      {
         "_index":"schools_gov", "_type":"school", "_id": "2"
      }
   ]
}
响应体：
{
    "docs": [
        {
            "_index": "schools",
            "_type": "school",
            "_id": "1",
            "_version": 6,
            "_seq_no": 7,
            "_primary_term": 1,
            "found": true,
            "_source": {
                "name": "Central School4",
                "description": "CBSE Affiliation",
                "street": "Nagan",
                "city": "paprola",
                "state": "HP",
                "zip": "176115",
                "location": [
                    31.8955385,
                    76.8380405
                ],
                "fees": 2004,
                "tags": [
                    "Senior Secondary",
                    "beautiful campus"
                ],
                "rating": "3.5"
            }
        },
        {
            "_index": "schools_gov",
            "_type": "school",
            "_id": "2",
            "_version": 1,
            "_seq_no": 1,
            "_primary_term": 1,
            "found": true,
            "_source": {
                "name": "City School",
                "description": "ICSE",
                "street": "West End",
                "city": "Meerut",
                "state": "UP",
                "zip": "250002",
                "location": [
                    28.9926174,
                    77.692485
                ],
                "fees": 3500,
                "tags": [
                    "fully computerized"
                ],
                "rating": "4.5"
            }
        }
    ]
}