mongodb存储geoJson原创

2020-07-09 09:40:29 mongodb存储geoJson_Art pursuer-CSDN博客 2点赞文章源自JAVA秀-https://www.javaxiu.com/19237.html

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Art pursuer mongodb存储geoJson_Art pursuer-CSDN博客文章源自JAVA秀-https://www.javaxiu.com/19237.html

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在业务需求中，需要对地理坐标进行存储，mongodb是一种很好的选择，因为它提供了许多关于地理位置的方法，但是它提供的GeoJson却是一个接口，当然也提供了对应的点、线、面的实现类，不过在业务需求中，往往需要前端传一个GeoJson数据格式，后端做一个点、线、面的适配，已达到简单使用，简单存储的功能；文章源自JAVA秀-https://www.javaxiu.com/19237.html

基于上面的场景，写了这篇文章，下面就贴代码了(关于maven及mongdb的配置下面就不贴了，只贴核心代码)文章源自JAVA秀-https://www.javaxiu.com/19237.html

1.首先自定义一个GeoJson类文章源自JAVA秀-https://www.javaxiu.com/19237.html

@DatapublicclassCustomGeoJsonimplementsGeoJson, Serializable {privatestaticfinallong serialVersionUID =1;private String type;private Iterable<?> coordinates;}

2.添加mongdb的convert转换器，读写用的 1）CustomReadGeoJsonConverter文章源自JAVA秀-https://www.javaxiu.com/19237.html

@ConfigurationpublicclassCustomReadGeoJsonConverterimplementsConverter<Document, CustomGeoJson>{@Overridepublic CustomGeoJson convert(Document document){ CustomGeoJson geoJson =newCustomGeoJson(); geoJson.setType(document.get(GeoJsonConstant.TYPE, String.class)); geoJson.setCoordinates(document.get(GeoJsonConstant.COORDINATES, Iterable.class));return geoJson;}}

2)CustomWriteGeoJsonConverter文章源自JAVA秀-https://www.javaxiu.com/19237.html

@ConfigurationpublicclassCustomWriteGeoJsonConverterimplementsConverter<CustomGeoJson, Document>{@Overridepublic Document convert(CustomGeoJson geoJson){ Document document =newDocument(); document.put(GeoJsonConstant.TYPE, geoJson.getType()); document.put(GeoJsonConstant.COORDINATES, geoJson.getCoordinates());return document;}}

3.geoJson数据的键名称文章源自JAVA秀-https://www.javaxiu.com/19237.html

publicfinalclassGeoJsonConstant{/** * type（类型） */publicstaticfinal String TYPE ="type";/** * coordinates(坐标位置) */publicstaticfinal String COORDINATES ="coordinates";}

4.geoJson的type文章源自JAVA秀-https://www.javaxiu.com/19237.html

publicfinalclassGeoJsonTypeConstant{/** * 点 */publicstaticfinal String POINT ="Point";/** * 线 */publicstaticfinal String LINESTRING ="LineString";/** * 面 */publicstaticfinal String POLYGON ="Polygon";}

实体类

@Data@Document(collection ="map_data")publicclassMapData{@Idprivate String id;private CustomGeoJson geometry;}

6.Config文章源自JAVA秀-https://www.javaxiu.com/19237.html

@ConfigurationpublicclassConfig{@Autowiredprivate CustomReadGeoJsonConverter customReadGeoJsonConverter;@Autowiredprivate CustomWriteGeoJsonConverter customWriteGeoJsonConverter;@Beanpublic MongoCustomConversions customConversions(){ List<Converter<?,?>> converterList =newArrayList<>(); converterList.add(customReadGeoJsonConverter); converterList.add(customWriteGeoJsonConverter);returnnewMongoCustomConversions(converterList);}}

7.TestController文章源自JAVA秀-https://www.javaxiu.com/19237.html

@RestController@ApipublicclassTestController{@Autowiredprivate MongoTemplate mongoTemplate;@PostMapping("test")public MapData test(@RequestBody MapData mapData){return mongoTemplate.insert(mapData);}}

8.测试效果图 swagger入参 mongodb存储geoJson_Art pursuer-CSDN博客文章源自JAVA秀-https://www.javaxiu.com/19237.html