Web Features Service GeoJson数据汇总_featureservice多个数据集

WFS（Web Feature Service）是一种基于HTTP的地图服务，它允许用户查询、插入、更新和删除地理要素。GeoJSON（Geographic JavaScript Object Notation）是一种轻量级的数据交换格式，通常用于在Web上传输地理信息。

{
  "type": "FeatureCollection", // 要素集合，一般都是这个值
   "crs": {   // 意思是当前坐标的信息，这个属性一般返回的值里面没有，至少我没遇到过
		"type": "name",
		"properties": {
			"name": "urn:ogc:def:crs:OGC:1.3:CRS84"
		}
	},
  "features": [  // 要素集合
    {
      "type": "Feature",
      "id": 1103,
      "properties": {
        "_draw_type": "point"
      },
      "geometry": {
// 集合类型：Point、LineString、Polgon、MultiPoint、MultiLineString、MultiPolgon、GeometryCollection
        "type": "Point", 
        "coordinates": [
          102.90336351,
          40.79200619
        ]
      },
      "bbox": [
        102.90336351,
        40.79200619,
        102.90336351,
        40.79200619
      ]
    },
    {
      "type": "Feature",
      "geometry": {
        "type": "GeometryCollection",// 这种类型返回多种几个类型的要素数据
        "geometries": [
          {
            "type": "Point",
            "coordinates": [-118.2437, 34.0522]
          },
          {
            "type": "LineString",
            "coordinates": [
              [-118.2437, 34.0522],
              [-74.0059, 40.7128]
            ]
          }
        ]
      },
      "properties": {
        "name": "Los Angeles to New York"
      }
    }
  ]
}