基于Web的无线Led信息发布系统的实现与升级

发布时间：2018-03-26 10:58

本文选题：Web应用　切入点：分层架构　出处：《北京邮电大学》2014年硕士论文

【摘要】：随着移动互联网的快速发展,各种新媒体随之兴起,LED显示屏以其独特的不间断显示的特点获得了用户的青睐,被广泛应用于各种信息展示的场合。本论文设计的基于Web的无线Led信息发布系统可以对LED屏幕进行实时无线操作与监控,实现信息的远程无线发布。本系统采用B/S(浏览器/服务器)模式,运用ExtJS框架进行用户界面的搭建,用户可以跨平台地通过浏览器进行访问；服务器端使用了J2EE核心技术进行开发,采用分层架构,将表现层、业务逻辑层和持久层进行分离,实现了系统模块的松耦合,使得系统有良好的扩展性与重用性。系统主要包括三大功能模块：终端管理模块、节目管理模块和信息发布模块,三者结合使用来实现信息的远程无线发布。系统数据库采用了分布式架构,将主数据库中的数据进行水平切分,然后通过一致性哈希算法分拆到各个不同的数据库中。应用程序通过特定的路由访问规则去目标数据库中获取所需数据。通过使用数据库分布式架构,减轻了单张数据表的访问压力,提高了系统性能,同时也改善了用户体验。系统上线后运行稳定,各方面都达到了预期的要求。
[Abstract]:With the rapid development of the mobile Internet, a variety of new media have emerged, LED display screen for its unique features of uninterrupted display has won the favor of users. This paper designs a wireless Led information publishing system based on Web, which can carry out real-time wireless operation and monitoring of LED screen, and realize remote wireless distribution of information. This system adopts the B / S (browser / Server) mode, uses the ExtJS framework to build the user interface, the user can access through the browser across the platform, the server end uses the J2EE core technology to carry on the development, adopts the stratified structure, The presentation layer, business logic layer and persistence layer are separated to realize the loose coupling of the system modules, which makes the system have good scalability and reusability. The system mainly includes three functional modules: terminal management module, terminal management module, and so on. The program management module and the information publishing module are combined to realize the remote wireless distribution of information. The system database adopts distributed architecture, which divides the data in the main database horizontally. The application uses specific routing access rules to obtain the required data in the target database. By using the database distributed architecture, It reduces the access pressure of the single data table, improves the system performance, and improves the user experience. The system runs stably after the system goes on line, and all aspects meet the expected requirements.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP311.52;TP393.092

【参考文献】