Design And Implementation Of Charging Subsystem Of Community Multimedia Operation System

Along with the popularization of internet application, and rapid evolution of computer technology, it makes people have a large change in life and work, so the concept of intellectualized community is accepted by more and more people. It is as communicating bridge of user gaining the information, it is digital signal convertor, we call it Set-Top-Box. Nowadays the trend of Set-Top-Box is micromation and computerization, it gradually integrates the function of computer and television, it becomes a multifunctional working platform, user may use this device to implement multimedia information service, such as mutual digital television, digital television broadcast, internet access, remote instruction, video conference, electronic commerce, as the same time, it can use the mode of internet to implement customer access.The digital network evolves as the mostly carrier of communication, the correlation technique of digital network develop quickly, VOD digital streaming technology based on digital network is a most important part of it. This technology resolves the problem of transmitting high-quality digital image on digital network. It is widely used in the domain of community, telecom, broadcast television, handle official bussiness, remote instruction. It extremely large extends application level of digital network. Through this system, user may order program to be set in type through the network, and it can achieve effect of DVD. It makes computer network becomes more lively and colourful.In the thesis, every key technology of charging subsystem of community multimedia operation system is studied, and on the basis of this to create a practical charging subsystem of community multimedia operation system. The J2EE platform makes this system good of portability, stability and efficiency. This system uses Hibernate as the development tool of the data permanence layer, integrates structure with the Spring, uses the design pattern of Struts MVC to realize application of presentation layer. The techniques well realize the separation of view and business logic.