如何使用 Spring 数据将原始 GeoJson MultiPolygon 存储到 MongoDB

Question

如何轻松地将原始 GeoJson MultiPolygon 特征转换为 org.springframework.data.mongodb.core.geo.GeoJsonMultiPolygon，以便我可以使用 SpringData(mongoTemplate) 将其保存到 MongoDB？我需要保留多边形的孔....

GeoJson https://gist.github.com/boundaries-io/978eaa4a10df9467638a5eb9259c84e6

org.geojson.MultiPolygon 至 org.springframework.data.mongodb.core.geo.GeoJsonMultiPolygon

目前以下工作正常，我可以将这个 MultiPolygon 保存到 MongoDb。

       org.geojson.MultiPolygon multiPolygon ....

        ObjectMapper mapper = new ObjectMapper();
        String writer = new StringWriter();
        org.geojson.Feature feature = new org.geojson.Feature();
        feature.setGeometry(multiPolygon);
        mapper.writeValue(writer, feature);                                     
        String geoJson = writer.getBuffer().toString(); 
        Document document = Document.parse( g );                                    
        Object obj = document.get("geometry");
                                
        Place place = new Place();                              
        place.setMultiPolygon(obj);

这允许我在包含孔等的多边形上进行地理空间搜索。我觉得这不是最干净的方法..

Answer 1

我最终采用的解决方案如下..无法从 org.geojson.MultiPolygon.

清楚地创建 GeoJsonMultiPolygon

  org.geojson.MultiPolygon multiPolygon = //a complicated MultiPolygon with holes,etc.

        ObjectMapper mapper = new ObjectMapper();
        String writer = new StringWriter();
        org.geojson.Feature feature = new org.geojson.Feature();
        feature.setGeometry(multiPolygon);
        mapper.writeValue(writer, feature);                                     
        String geoJson = writer.getBuffer().toString(); 
        Document document = Document.parse( g );                                    
        Object obj = document.get("geometry");
                                
        Place place = new Place();                              
        place.setMultiPolygon(obj);

如何使用 Spring 数据将原始 GeoJson MultiPolygon 存储到 MongoDB

How do I store raw a GeoJson MultiPolygon into MongoDB using Spring Data

geojson

spring-data

spring-mongodb