Development And Design Of Middleware-based Lottery Information Business System

With the rapid development of computer technology and network technology, the architecture of applications tends to multi-layered and isomerization that is to built and to run on the basis of the distribution components on heterogeneous platforms. In order to facilitate development in a distributed heterogeneous environment, middleware comes into being. With the introduction of middleware, the use of three-tier or multi-tier application model is introduced, which simplifies the complexity of applications in the client and facilitates the process of modification and maintenance.This paper is to research on middleware technology and three-tier architecture with the use of middleware technology for development in order to make the system software architecture become flexible with strong scalability. It is based on the project work of "China Telecom17987-87Lottery information business system" as the context; according to middleware architecture layered requirements, this paper is firstly to make business analysis on Lottery information business system. After that, based on the analysis results, this paper gives a middleware-based development program for the Lottery information business system, and makes the lottery system requirements analysis, system structure, and function and transaction process. Based on this development program, it carries on research on middleware technique, component design ideas, J2EE platform, and other key technologies. It develops and designs center business agent and local business agent that are consistent with EJB2.0specification of middleware, and achieves multilayer structure by system integration layer, business layer, and data storage layer. It achieves distributed transaction processing through the application server and lottery-related information analysis and processing in a distributed environment. Lottery system has high requirements for performance and maintenance, the paper finally discusses performance testing and debugging and maintenance of the system based on the middleware technology.Middleware-based China Telecom17987-87Lottery information business system is a distributed Lottery information business system. Compared with the traditional centralized system, it has the significant advantages on the aspects of cross-platform, scalability, and easy maintenance, which is very good to meet the business requirements for telecommunications system and obtains good results in the application.