Design and implementation of emergency WebGIS architecture based on Flex

Aiming at the problem of traditional Web geographic information system (WebGIS) with slow response,poor interactivity and poor scalability etc,a Flex-based emergency WebGIS system architecture was put forward.The architecture uses Flex and Java language to improve the portability of the system,the server-side uses the AMF protocol to improve the efficiency of the transmission and response,and the architecture uses multi-layer model to make independent of each other between the layers.Practice has proved that the architecture meets the demand such as strong interactivity,fast response and good scalability of WebGIS emergency platform,and greatly improves the efficiency and the user experience effect.