Esb-based Enterprise Application Integration Technology Research And Application

A typical E-government system includes various business systems of departments which can carry out administrative services together on the network. How to integrate them together to get the highest efficiency is a key problem. With the development of the enterprise application integration (EAI) technology, the Service-oriented architecture (SOA) emerged. In SOA, Services communicate with each other through standard business services' interfaces, and SOA's goal is to make services reusable. In order to handle complicate integration, by choosing ESB in the SOA system as the major trunk road for information transmission and service interaction, we can establish a good foundation structure for the future business change.In the beginning, this paper introduces the relative concept of EAI and the research contents. Then, in multiple levels of EAI, it focuses on the analysis and research of SOA and Web Services technology, and proposes an integration framework-CreatorSOIF which is based on ESB. Next, through the study of the current mainstream ESB models, it brings forward an ESB reference model in CreatorSOIF, that is SEE-ESB, which is based on service execution engine, and that can provide a reference for understanding, design, and implementation of SOA infrastructure-ESB. After that, this paper gives out the working model of service fitting gateway in SEE as well as the architecture of message router. And also on analyzing the message routing mediators of ESB and the traditional filtration mechanisms, it puts forward two new filtration mechanisms, that are priority-based and rule-based filtration mechanisms, which can enrich the message routing mechanisms in ESB.Finally, according to CreatorSOIF, we have developed a parallel examination and approval prototype system of E-government. Through analyzing and improving open source of Mule ESB, We have integrated various examination and approval business systems of governmental departments. The practice shows that, by using the method presented in this paper, we can establish a new set of dynamic E-government systems, and effectively improve the efficiency of government services.