A Mechanism of Initiative Transmission to Send Message on WEBGIS

The mechanism of message active transmission from WEBGIS server based on the N-layer architecture of Internet has been studied and realized in this paper. In the WEBGIS application of facing long business operation as well as showing server information in the client in real-time, Socket communication mechanism and the client combined with JAVA Applet technology are used to realize the message active transmission from the WEB server on WebGIS. A concrete plan of massage active transmission mechanism on WEBGIS has been put forward and realized. Through the engineering practice of Guangzhou CATV network security monitoring alarm system development, the designed scheme based on the realization plan of Winsock has been applied in practice and certified in the operation of the system. The mechanism is combined with conventional WEBGIS, so it can play a better performance and practicability of the WEBGIS. Copyright © 2013 IFSA.