Elasticsearch地理坐标类型(Geo-point)在Spring Data ES中的常见使用问题整理解答

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>

    /**
     * 坐标位置
     */
    @GeoPointField
    private GeoPoint location;

public interface TestRepository extends ElasticsearchRepository<Test, String> {
}

@Service
public class TestService  {

    @Resource
    private TestRepository testRepository;
    
    public Page<Test> findPage(double latitude, double longitude, String distance, Pageable pageable) {
        // 间接实现了QueryBuilder接口
        BoolQueryBuilder boolQueryBuilder = new BoolQueryBuilder();

        // 以某点为中心，搜索指定范围
        GeoDistanceQueryBuilder distanceQueryBuilder = new GeoDistanceQueryBuilder("location");
        distanceQueryBuilder.point(latitude, longitude);
        // 定义查询单位：公里
        distanceQueryBuilder.distance(distance, DistanceUnit.KILOMETERS);
        boolQueryBuilder.filter(distanceQueryBuilder);

        return testRepository.search(boolQueryBuilder, pageable);
    }
    
}

    // 计算两点距离
    double distance = GeoDistance.ARC.calculate(srcLat, srcLon, dstLat, dstLon, DistanceUnit.KILOMETERS);

@Service
public class TestService  {

    @Resource
    private TestRepository testRepository;
    
    public Page<Test> findPage(double latitude, double longitude, String distance, Pageable pageable) {
        // 实现了SearchQuery接口，用于组装QueryBuilder和SortBuilder以及Pageable等
        NativeSearchQueryBuilder nativeSearchQueryBuilder = new NativeSearchQueryBuilder();
        nativeSearchQueryBuilder.withPageable(pageable)

        // 间接实现了QueryBuilder接口
        BoolQueryBuilder boolQueryBuilder = new BoolQueryBuilder();
        // 以某点为中心，搜索指定范围
        GeoDistanceQueryBuilder distanceQueryBuilder = new GeoDistanceQueryBuilder("location");
        distanceQueryBuilder.point(latitude, longitude);
        // 定义查询单位：公里
        distanceQueryBuilder.distance(distance, DistanceUnit.KILOMETERS);
        boolQueryBuilder.filter(distanceQueryBuilder);
        nativeSearchQueryBuilder.withQuery(boolQueryBuilder);
        
        // 按距离升序
        GeoDistanceSortBuilder distanceSortBuilder =
                new GeoDistanceSortBuilder("location", latitude, longitude);
        distanceSortBuilder.unit(DistanceUnit.KILOMETERS);
        distanceSortBuilder.order(SortOrder.ASC);
        nativeSearchQueryBuilder.withSort(distanceSortBuilder);

        return testRepository.search(nativeSearchQueryBuilder.build());
    }
    
}