Research And Application Of ESB-SOA Architecture On Enterprise Application Integration

With the development of computer technology and the popularity of Internet application , more and more enterprises implement the information system; develop the enterprise intranet, set up the website and the Electronic Commerce. The information technology improves the management level of enterprise, the management efficiency and the comprehensive competitiveness of the enterpris, reduces the management costs. However, many problems are followed by the information technology. The information systems that were developed or introduced many years ago can not share the information; the business can not be executed smoothly and controlled effectively; so it produces lots of "Information Island". The "Information Island" not only affects the running of existing system, but also affects the implementation of the new system.So, the thesis sets forth from the current popular software architecture - SOA (Service Oriented Architecture), introduces the concept of SOA, and discusses the related technologies of SOA. These can help understand the features and meaning of SOA better. Then the thesis summarized the design principles and patterns of SOA according to the research of the in and abroad website. After that, aim at the ESB (Enterprise Service Bus) which is the entry point of SOA, the thesis discuss the concept of ESB, the evolution as well as the role in SOA, these provide a good theoretical foundation for the introduction of ESB-SOA.The thesis put forward an enterprise service bus pattern ESB-SOA based on SOA. And then do some detail analysis and designation for the mainly part of ESB-SOA - Protocol adaptor, service adaptor and common service. Aim at the protocol adaptor, design and implement the protocol listener and protocol processor. Aim at the service adaptor, the thesis design and implement the service wrapper and service locator. Aim at the common service, design and implement the session service, log service and SOAP serializater and deserializer. Then, the thesis combines an example of enterprise application integration to illustrate the implementation of ESB-SOA. Finally, the thesis summarize and outlook for the ESB-SOA pattern.