Design And Implementation Of Component Invocation Platform Based On Web Service

This thesis analyses the problem of information islands between business systems from Labor and Social Security departments of Zhonshan city, after fully understanding topic background, and proposes the Component Invocation Platform of Service-Oriented Architecture (SOA) model based on Web Service to establish the uniform platform of data accessing and data sharing between heterogeneous business systems. This platform uses EJB technology to write component, and makes use of Web Services and J2EE technology to realize some functions such as component registration, component authorization, component invocation and invocation monitor, and so on, which aims to offer component invocation service for business systems from Labor and Social Security departments of Zhonshan city and solve the problem of the cross system's business operation.The Component Invocation Platform already has obtained the very good application in the Zhangshan Data Center project, so far this project already has been used for more than two months smoothly. All kinds of business systems unify data access standards between heterogeneous business systems by using XML, and carry through component invocation service provided by the Component Invocaion Platform, to compose information resource furthest and realize the collaboration office automation between departments from the Labor and Social Security departments of Zhongshan city. To meet business systems's requirement well, the Component Invocation Platform will make the further improvement on the calling mode of component invocation service.