基于服务器推送技术的在线交流平台的研究与实现

发布时间：2019-07-04 11:19

【摘要】：随着互联网技术的迅速发展,基于互联网的应用也变得越来越多样化。基于Web的在线交流平台应运而生,并越发得到人们的追捧。服务器推送技术是一种Web即时通讯技术,在基于Web的即时通讯和股票价格等实时系统开发过程中得到了广泛的应用和发展,也是在线交流平台实现的主要技术之一。在对具有信息共享的在线交流平台设计过程中,应用服务器推送技术实现了在线交流和信息推送。服务器推送技术的实时性能够准确、及时地将信息发送到指定用户,保证在线交互的实时性。首先,研究对比了几种服务器推送技术的实现原理和工作方式,对基于Comet和基于Web Socket的两种服务器推送技术进行了深入研究。根据实际开发的在线交流平台的具体需求,给出了基于HTTP协议的Comet技术和Web Socket技术实现的服务器推送在在线交流平台的服务器推送框架的总体设计方案。其次,将服务器推送技术应用到在线交流平台的实时性信息交互的框架开发当中,设计在线交流平台的服务器推送框架。根据在线交流平台的功能需求,采用基于Ajax的长轮询实现Comet技术,同时结合Web Socket技术设计出服务器推送框架的详细结构,将服务器推送框架划分成长连接模块、消息转发模块、消息处理模块、客户端浏览器显示模块并实现各功能模块的功能。最后,设计并实现了一个具有信息共享的在线交流平台系统,并进行了系统的测试。测试内容包括在线交流平台中服务器推送框架对长连接的负载能力测试和在线交流平台的功能的测试,并对服务器对内存资源和CPU资源的占用情况进行了分析。
[Abstract]:With the rapid development of Internet technology, Internet-based applications are becoming more and more diverse. Web-based on-line communication platform comes into being, and is becoming more and more popular. Server push technology is a kind of web instant communication technology, which is widely used and developed in the development of real-time system based on web-based instant communication and stock price. It is also one of the main technologies to realize on-line communication platform. In the design of on-line AC platform with information sharing, the application server push technology has realized the on-line exchange and information push. The real-time performance of the server push technology can accurately and timely send the information to the appointed user, thus ensuring the real-time of the online interaction. In the first place, the implementation principle and working mode of several server push technologies are compared, and two kinds of server push technologies based on Comet and Web Socket are deeply studied. According to the actual demand of the on-line AC platform, the overall design scheme of the server push framework based on the HTTP protocol and the server push framework realized by the Web Socket technology is given. Secondly, the server pushing technology is applied to the framework development of the real-time information interaction of the on-line communication platform, and the server pushing framework of the on-line communication platform is designed. according to the functional requirements of the on-line communication platform, the Comet technology is realized by using the Ajax-based long polling, the detailed structure of the server push framework is designed in combination with the Web Socket technology, the server push framework is divided into a growth connection module, a message forwarding module and a message processing module, And the client browser displays the module and realizes the function of each function module. Finally, a system of on-line AC platform with information sharing is designed and implemented, and the system test is carried out. The test content includes the test of the load capacity test of the server pushing frame and the function of the on-line communication platform of the server pushing frame in the on-line communication platform, and analyzes the occupation of the memory resources and the CPU resources by the server.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP311.52

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