| In the new century, with advances in information technology, E-commerce booming emerging, and online payment as an important part of E-commerce have been accepted by the public. Related links in the online payment, the banking institutions which are in the upstream industry chain, plays a very important role on online payment with friendliness, convenience, security. For banks, a good online payment system can expand the range of customers; improve customer operating frequency, increasing the viscosity of banks in order to compete in the same industry in a dominant position.This thesis introduces analysis of a bank online payment and describes implementation of Payment Gate Way System. First, it introduces the necessary technical and functional design tools:Unified Modeling Language (UML), according to the business stakeholders of the business, first author uses UML to identify the Business Actor and then consider the relevant requirements from the business perspective, and conduct business requirements with case analysis. This thesis mainly analyzes on the individual needs of the buyer use cases, business merchants housing demand use cases, and management needs of banks use cases are analyzed. Secondly, it transits to the Spring lightweight development framework through the J2EE development framework, and then to Java Spring-based product line development framework of the Bank of China, in order to point out that the use of mature product line technology which can improve development efficiency, and ensure product stability and scalability. Finally, according to the Chinese bank’s existing products and the overall planning, it designs the payment gateway system which has been designed in the object-oriented model, as far as possible a modular, loosely coupled design. In addition, the paper also introduces digital signature technology, in electronic transactions, security has been a topic of common concern, and digital signature technology is a good solution to identity authentication, message integrity and non-repudiation of the focus, which is an indispensable technology on the online payment platform. Finally, this thesis summarizes the analysis of online payment and the implementation of Payment Gate Way system, the application in real business, affirms the social and economic value, and also brings up the improvement direction and outlook of online payment platform. |
