如何使用Elasticsearch地理查询获取到给定地理点的最近位置(地理点)

最好的方法是利用 distance sorting 并检索最近的地理位置:

GET my-index/_search
{
  "size": 1,                                <--- return top 1
  "sort" : [
    {
      "_geo_distance" : {
          "location-field" : [-70, 40],     <--- center location
          "order" : "asc",                  <--- sorted by closest distance
          "unit" : "km",
          "mode" : "min",
          "distance_type" : "arc",
          "ignore_unmapped": true
      }
    }
  ],
  "query" : {
    "match_all" : {}
  }
}