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elasticSearch的URI搜索-sort

发布时间：2021-09-02 16:17:03编辑：雪饮阅读（）

 在elasticSearch中对索引出来的结果集还可以进行排序，在URI搜索中通过sort来指定用于排序的字段及排序的方式，如：

Get http://localhost:9200/schools/_search?sort=_id:desc
请求正文：none
响应正文：
{
    "took": 2,
    "timed_out": false,
    "_shards": {
        "total": 1,
        "successful": 1,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 4,
            "relation": "eq"
        },
        "max_score": null,
        "hits": [
            {
                "_index": "schools",
                "_type": "school",
                "_id": "4",
                "_score": null,
                "_source": {
                    "name": "Saint Paul School",
                    "description": "ICSE Afiliation",
                    "street": "Dawarka",
                    "city": "Delhi",
                    "state": "Delhi",
                    "zip": "110075",
                    "location": [
                        28.5733056,
                        77.0122136
                    ],
                    "fees": 5000,
                    "tags": [
                        "Good Faculty",
                        "Great Sports"
                    ],
                    "rating": "4.5"
                },
                "sort": [
                    "4"
                ]
            },
            {
                "_index": "schools",
                "_type": "school",
                "_id": "3",
                "_score": null,
                "_source": {
                    "name": "Central 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"
                },
                "sort": [
                    "3"
                ]
            },
            {
                "_index": "schools",
                "_type": "school",
                "_id": "2",
                "_score": null,
                "_source": {
                    "name": "Saint Paul School",
                    "description": "ICSE Afiliation",
                    "street": "Dawarka",
                    "city": "Delhi",
                    "state": "Delhi",
                    "zip": "110075",
                    "location": [
                        28.5733056,
                        77.0122136
                    ],
                    "fees": 5000,
                    "tags": [
                        "Good Faculty",
                        "Great Sports"
                    ],
                    "rating": "4.5"
                },
                "sort": [
                    "2"
                ]
            },
            {
                "_index": "schools",
                "_type": "school",
                "_id": "1",
                "_score": null,
                "_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"
                },
                "sort": [
                    "1"
                ]
            }
        ]
    }
}
这里是将schools中的文档都查询出来，然后通过_id字段字段降序排序。