语音调度WEB平台服务器推送技术研究

发布时间：2018-05-16 05:17

本文选题：WebSocket + 消息推送　；参考：《长安大学》2017年硕士论文

【摘要】：随着Web技术越来越深地融入各行各业,一些传统C/S构架下的语音调度系统被语音调度Web平台代替。这类Web系统对各种状态信息的更新十分敏感,因此新的Web系统下急需解决的一个重要问题就是如何快速准确地将服务器信息推送到客户端。显然,HTTP作为超文本传输协议,难以满足语音调度Web系统实时性的需求,所以WebSocket协议被提出。因为WebSocket协议的目的是将Web应用从请求响应这一单一模式彻底解放出来而使得该协议备受关注,支持WebSocket协议的服务器和浏览器在完成握手之后会搭建一个持久稳定的全双工通道,通过这个通道,双方可以方便地互相推送消息。因此,本文通过分析WebSocket协议,研究了如何开发并部署基于WebSocket的Web应用,并且讨论了可能会带来的安全性问题,这些问题包括利用WebSocket服务器弱点获得服务器控制的攻击以及拒绝服务攻击等。本文以语音调度Web平台的开发为背景,对原语音调度Web平台下服务器负载过高的问题进行了分析,通过研究了旧平台的服务器推送过程,结合语音调度Web平台的服务器推送需求,对服务器推送模型进行优化调整,提出一种兼容原语音调度Web平台的系统集成方案,设计并实践了一个高实时性,高稳定性,低网络负载,低服务器负载的服务器推送引擎。最后对系统各方面指标进行了模拟测试并作出性能评估。
[Abstract]:With more and more integration of Web technology into various industries, some traditional voice scheduling systems based on C / S architecture are replaced by voice scheduling Web platform. This kind of Web system is very sensitive to the update of various state information, so an important problem that needs to be solved urgently under the new Web system is how to push the server information to the client quickly and accurately. Obviously, as a hypertext transmission protocol, HTTP is difficult to meet the real-time requirements of voice scheduling Web system, so WebSocket protocol is proposed. Because the purpose of the WebSocket protocol is to completely liberate the Web application from the single mode of response to requests, the protocol has attracted much attention. Servers and browsers that support the WebSocket protocol will build a durable and stable full-duplex channel after shaking hands. Through this channel, both sides can easily push messages to each other. Therefore, by analyzing the WebSocket protocol, this paper studies how to develop and deploy Web applications based on WebSocket, and discusses the possible security problems. These problems include taking advantage of WebSocket server vulnerabilities to obtain server-controlled attacks and denial of service attacks. In this paper, based on the development of voice scheduling Web platform, the problem of excessive server load under the original voice scheduling Web platform is analyzed, and the server push process of the old platform is studied. Combined with the server push demand of voice scheduling Web platform, the server push model is optimized and adjusted, and a system integration scheme compatible with the original voice scheduling Web platform is proposed. A high real-time and high stability is designed and implemented. Low network load, low server load server push engine. At last, the simulation test and performance evaluation are carried out on all aspects of the system.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.09

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