基于WebSocket的实时技术

摘要

Many Web applications, such as stock systems, web games and online booking system, should send the changes of the server to the client in real time, so the client don't need to send requests and refresh to achieve real-time data. This acticle focuses on the analysis of server push technology, and builds the new real-time technology based on event-driven NodeJS and WebSocket, which is the new feature of HTML5.%很多Web应用如股票系统、网页游戏、在线订票系统，都需要将服务器端的变化实时发送到客户端，无需客户端不断发送请求和刷新来实现数据的实时性。本文对目前实时技术进行分析，结合HTML5新特性WebSocket与基于事件驱动的NodeJS构建了一种新的Web实时技术。