服务器推送技术在气象数据发布中的研究与应用

在气象GIS的Web应用中,气象数据的发布一直采用的形式是：客户端向服务端发送数据请求,再由服务端生成图片发向客户端。这种传统的数据传送方式存在需要客户端主动请求、等待数据延迟等弊端,无法满足气象部门对于气象数据快速、准确、按需定制气象资料发布与共享的需求。服务器推送技术是根据客户端的需求不断将数据包推向客户端,该文结合气象GIS数据发布的需求和特点,讨论了服务端推送技术在气象GISWeb应用中的可行性和必要性,研究服务端推送技术在气象数据发布中的实现方式,以实现气象数据的快速、动态、实时发布,减少数据等待延迟时间,增强用户体验。

The Research and Applications of Server Push Technology in Meteorological Data Publish

In Meteorological GIS for Web applications,the weather data has been used to release in this form: the client sends request to the service,then the server sent a generated photo back to the client,whose traditional way of data transmission have somewhat shortcomings as such it must need to take the initiative request by client,and waiting for data to be delayed etc,which can not meet the needs of the meteorological weather data for fast,accurate publishing on demand and sharing of weather information.Server push technology is constantly sending data packet to the client by client’s request,In this paper,combined with need and characteristics of Meteorological GIS data,the feasibility and necessity to use server push technology in GIS for Web application in meteorology are discussed,and the realization of server push technology in meteorological GIS for Web Services is studied in order to achieve the enhancement of user experience in rapidity,dynamics,real-time release and time reduction in data waiting.