您好,发布数据服务进行空间查询即可。
查询API参考:https://help.supermap.com/iServer/mergedProjects/SuperMapiServerRESTAPI/root/data/featureResults/featureResults.htm
前端查询示例:https://iclient.supermap.io/examples/leaflet/editor.html#02_getFeatureByGeometry
希望能够帮助到您!