Research on the Open-Source WebGIS Framework Based on GeoServer and OpenLayers
The WebGIS is a distributed computer application system that stores,manages,analyzes and releases spa-tial information data in the Internet environment.Firstly,based on the analysis of the WebGIS server,map services for offline tiles and vector layers are released based on GeoServer.Then,a WebGIS client based on OpenLayers is designed and constructed,and the client calls map services to load the layer image data returned by corresponding URL addresses for layer overlapping.Finally,by parsing the real-time location information data of the aircraft ADSB,flight information is actively pushed to the client through WebSocket,and the client displays real-time flight dynamics on the layer,which can intuitively display flight information during in-and out-of-airport flights.The WebGIS service platform developed by this scheme has good scalability and clear structural hierarchy,which improves development efficiency,and provides new ideas for open-source components to realize WebGIS spatial application research,and it can be applied in fields such as smart airport construction.