The Application And Research Of E-Government Integration Based On Web Service

With the rapid development of information technology and the process of many years construction, our country's e-government has gotten huge achievement which many application systems among different government departments are working. But these systems which based on different developing platforms, different developing languages and different operation systems lack information share and data interaction abilities, so these problems restrict the function of e-government mostly.Application integration which can reuse information resource greatly is very important to e-government. But traditional point-to-point integration can cause tight coupling among systems, e-government will lack good flexibility and expansibility. SOA and Web Service supply strong technical support for resolving these problems.This thesis analyzes problems of traditional e-government and undertakes feasibility analysis of resolving problems. At the same time the thesis analyzes relative API definition protocol criterion of many hot-spot technologies including Web Service, SOA, ESB three items described in feasibility analysis. These technologies can promote advantages of e-government application integration largely. For resolving problems of traditional e-government application integration, this thesis raises a service-oriented case. In this case, ESB which act as base components can merge Web Service and SOA perfectly and integrate application services on a powerful expansibility architecture with a highly flexible state. Finally the thesis implements service-oriented case which is corporate information warehouse system integration on enterprise service bus.Web Service is thought to be the most excellent realization technology of SOA by tots of large enterprises among the world, so this will reduce risk on development,integration and maintenance of e-government system largely. SOA which acts as an architecture model can undertake distributed allocation, combining and using of loosely-coupled coarse-grain component and ensure flexibility and expansibility of e-government system.