es 7.x 主键查询与全部查询

主键查询

请求方式get 请求路径: _doc后面的为数据的id主键, 即查询主键为1的数据. http://127.0.0.1:9200/shopping/_doc/1 请求体为空 返回数据如下:

{
    "_index": "shopping",
    "_type": "_doc",
    "_id": "1",
    "_version": 3,
    "_seq_no": 4,
    "_primary_term": 1,
    "found": true,
    "_source": {
        "title": "小米手机",
        "category": "小米",
        "images": "http://xiaomi.com",
        "price": 3999.00
    }
}

如果查询一个不存在的id的数据, 例如如下查询id为666的数据, 那么found为false.

查询全部数据

用_search 请求url: http://127.0.0.1:9200/shopping/_search 查询shopping索引下的全部数据 请求方式为get 结果如下: took为耗费的毫秒 hits.total.value 代表一共命中了五条数据.

{
    "took": 53,
    "timed_out": false,
    "_shards": {
        "total": 1,
        "successful": 1,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 5,
            "relation": "eq"
        },
        "max_score": 1.0,
        "hits": [
            {
                "_index": "shopping",
                "_type": "_doc",
                "_id": "ex0KPX4BPkzBbPhZJmdM",
                "_score": 1.0,
                "_source": {
                    "title": "小米手机",
                    "category": "小米",
                    "images": "http://xiaomi.com",
                    "price": 3999.00
                }
            },
            {
                "_index": "shopping",
                "_type": "_doc",
                "_id": "fB0NPX4BPkzBbPhZNmcn",
                "_score": 1.0,
                "_source": {
                    "title": "小米手机",
                    "category": "小米",
                    "images": "http://xiaomi.com",
                    "price": 3999.00
                }
            },
            {
                "_index": "shopping",
                "_type": "_doc",
                "_id": "1",
                "_score": 1.0,
                "_source": {
                    "title": "小米手机",
                    "category": "小米",
                    "images": "http://xiaomi.com",
                    "price": 3999.00
                }
            },
            {
                "_index": "shopping",
                "_type": "_doc",
                "_id": "2",
                "_score": 1.0,
                "_source": {
                    "title": "小米手机",
                    "category": "小米",
                    "images": "http://xiaomi.com",
                    "price": 3999.00
                }
            },
            {
                "_index": "shopping",
                "_type": "_doc",
                "_id": "3",
                "_score": 1.0,
                "_source": {
                    "title": "小米手机",
                    "category": "小米",
                    "images": "http://xiaomi.com",
                    "price": 3999.00
                }
            }
        ]
    }
}