Research And Implementation Of E-Government Middleware Based On OSGI

With the development of the E-Government application, the design of the application software will be required to make progress. Today in the area of the E-Government application, how to integrate other application system and integrate many kinds of data sources to mobilize various departments, which is becoming the important problem. This paper presents the E-Government service sytem based on OSGI and middleware model. And then the paper gives an example of the model.The paper first concentrates on the middleware technology and the development of middleware. The architecture and their characteristics of four middlewares — CORBA, DCOM, J2EE/EJB and Web Services are carefully analyzed, and the protocol development course of the distributed interoperation is illustrated. Then based on the analysis of the internal mechanism and system architecture of OSGI technology, this paper presents the system architecture of an E-Government service platform middleware based on OSGI and middleware model. The author of this paper also gives an example of E-Government application to verify the flexility and standardization of E-Government middleware. Last, the author sums up the work, which has done in this paper and put forward the contents that need further research and improvement in the future. At the end, the paper forecasts the application prospect of this middleware model.