如何从Java文件.geojson中读取信息？

Question

我需要帮助从GeoJSON文件中读取多边形，我知道如何阅读 一个简单的观点。这是我使用的GeoJSON文件和Java代码 为了阅读一点，现在我需要阅读多边形，有人可以帮助我吗？

GeoJSON文件：

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [
          13.805694580078125,
          40.79717741518766
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              13.77685546875,
              40.823682398765996
            ],
            [
              13.77685546875,
              40.60300547512703
            ],
            [
              14.085159301757812,
              40.660847697284815
            ],
            [
              13.959503173828125,
              40.854851176469666
            ],
            [
              13.77685546875,
              40.823682398765996
            ]
          ]
        ]
      }
    }
  ]
}

Java代码

  case GeoJSON.TYPE_POINT:
    Point point=(Point) feature.getGeometry();
    double lat = point.getPosition().getLatitude();
    System.out.println(lat+"\n");
    double lon = point.getPosition().getLongitude();
    System.out.println(lon+"\n");
    GeoPoint x = new GeoPoint(lat,lon);
    mywaypoints.add(x);
    break;