如果属性中存在几何，则无法正确导入Geojson文件

Question

输入文件：

{
  "type": "FeatureCollection",
  "name": "smth_name",
  "crs": {
    "type": "name",
    "properties": {
      "name": "urn:ogc:def:crs:EPSG::4326"
    }
  },
  "features": [
    {
      "type": "Feature",
      "properties": {
        "testid": 2,
        "other_geom": {
          "type": "Point", "coordinates": [44.3, 33.3] 
        }
      },      
      "geometry":{"type":"MultiPolygon",
          "coordinates":[[[[33.5461,33.44],[33.441,33.447],[33.6718,33.448],[33.0188,33.441],[33.5461,33.44]]]]}
    }
  ]
}

结果，我得到一个具有点几何（44.3,33.3）的对象，而不是多边形的对象。

如何忽略要素属性或其他复杂字段中的几何？

二手geotools gt-geojsondatastore 19.0版本。

GeoJSONDataStore geoJSONDataStore = new GeoJSONDataStore(jsonFile.toURI().toURL());
SimpleFeature simpleFeature = geoJSONDataStore.getFeatures()...next();
Point geometry = simpleFeature.getDefaultGeometry()

Answer 1

在构建器中，您已将默认几何设置为指向other_geom，即。类型Point对象。将其设置为MultiPolygon（geometry）类型。

SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
builder.setDefaultGeometry("geometry");

并在你的提取

MultiPolygon geometry = simpleFeature.getDefaultGeometry();