| | |
| | | |
| | | import com.xiaopeng.api.vo.automaticPilot.VehiclePosition; |
| | | import org.springframework.data.domain.Sort; |
| | | import org.springframework.data.geo.*; |
| | | import org.springframework.data.geo.Circle; |
| | | import org.springframework.data.geo.Distance; |
| | | import org.springframework.data.geo.Metrics; |
| | | import org.springframework.data.mongodb.core.MongoTemplate; |
| | | import org.springframework.data.mongodb.core.geo.GeoJsonPoint; |
| | | import org.springframework.data.mongodb.core.query.Criteria; |
| | | import org.springframework.data.mongodb.core.query.NearQuery; |
| | | import org.springframework.data.mongodb.core.query.Query; |
| | | import org.springframework.stereotype.Service; |
| | | |
| | | import javax.annotation.Resource; |
| | | import java.util.ArrayList; |
| | | import java.util.List; |
| | | import java.util.stream.Collectors; |
| | | |
| | | @Service |
| | | public class VehiclePositionService { |
| | |
| | | double latitude, |
| | | double distanceInMeters,int num) { |
| | | try { |
| | | // // 1. 创建查询点 |
| | | // Point referencePoint = new Point(longitude, latitude); |
| | | // |
| | | // // 2. 构建 NearQuery - 完全使用 NearQuery 的 API |
| | | // NearQuery nearQuery = NearQuery.near(referencePoint, Metrics.KILOMETERS) |
| | | // .maxDistance(distanceInMeters / 1000) // 转成公里 |
| | | // .spherical(true); |
| | | // |
| | | // |
| | | // // 4. 执行查询 - 明确指定集合名 |
| | | // GeoResults<VehiclePosition> geoResults = mongoTemplate.geoNear( |
| | | // nearQuery, |
| | | // VehiclePosition.class, |
| | | // "vehicle_position" // 明确指定集合名,避免映射错误 |
| | | // ); |
| | | // |
| | | // // 5. 提取结果 |
| | | // return geoResults.getContent().stream() |
| | | // .map(geoResult -> geoResult.getContent()) |
| | | // .collect(Collectors.toList()); |
| | | |
| | | //找到中心点 |
| | | // 找到中心点 |
| | | GeoJsonPoint geoJsonPoint = new GeoJsonPoint(longitude, latitude); |
| | | //构造半径 |
| | | // 构造半径 |
| | | Distance distanceR = new Distance(distanceInMeters, Metrics.KILOMETERS); |
| | | //画圆 |
| | | // 画圆 |
| | | Circle circle = new Circle(geoJsonPoint, distanceR); |
| | | // 构造query对象 |
| | | Query query = Query.query(Criteria.where("point").withinSphere(circle)); |
| | | long latestAllowedAddTime = System.currentTimeMillis() - 60 * 1000; |
| | | Query query = Query.query(new Criteria().andOperator( |
| | | Criteria.where("point").withinSphere(circle), |
| | | Criteria.where("addTime").gte(latestAllowedAddTime) |
| | | )); |
| | | List<VehiclePosition> vehiclePositions = mongoTemplate.find(query, VehiclePosition.class); |
| | | return vehiclePositions; |
| | | } catch (Exception e) { |
| | |
| | | } |
| | | |
| | | |
| | | |
| | | /** |
| | | * 根据车辆ID查询车辆信息 |
| | | * @param vehicleId 车辆ID |