Application Research On Social Security System Of Multi-layer Structure Based On J2EE

The social security system is an important part and sign in modern market economy,its basic contents are social salvation,social insurance and social welfare.The development of information-based technology is changing with each passing day.The emergence of new techniques is improving people's control and operation to the information,and is putting forward higher request for today's information-based construction of social security in the meantime.The social security system's construction in community,extension in public service system,and how to exchange information with the departments of bank,public finance,tax,finance,civil affairs,etc. more perfectly and expediently, have become a problem that the current social security system has to face.For working out this problem,on the one hand,we need to enlarge the construction of the industry infrastructure network,raise the processing ability and speed of information system,on the other hand,we should also make use of new techniques to upgrade and improve the current system in good time,in order to make it adapt the industry demand of increasing information amount,wider information range.Along with nation's related policies are gradually becoming perfect,the business of social security is more and more standard.For satisfying and pushing forward the development of this kind of business demand,we design and realize the consonancy social security comprehensive management system.This system adopts a three-layer C/S/S structure as its infrastructure;uses the J2EE technique as its core technical standard.In system design process, the ideas of component,workflow are introduced;several J2EE design patterns such as Filter,Front Controller,Business Delegate, Session Facade,etc. are used.Furthermore,for normalizing system hiberarchy and building system services,the enterprise framework is constructed.The whole system is composed of business logic layer and system framework layer.The system framework can well solve complicated business logic to make the whole system adapt to design request for general use.In full consideration of the system's extensibility and portability,according to the features of social security industry,the system framework adopts traditional Windows client interface as business operation interface in order to make customers accept this system more easily in operation and feeling.The system provides security service,log service;has the standardized database design.To lift high performance,the system applies an optimization strategy for solving bottleneck of EJB calls.Hibernate is an object/relation database mapping tool which faces to Java environment,it not only manages the mapping from Java classes to database tables,but also provides approaches which can query data and obtains data.The essence of Hibernate is realization pattern in persistence layer,it completely aims at objects persistence.Thus we encapsulate Hibernate in system's persistence layer.Interviewing database via Hibernate can obviously reduce the time that manually use SQL and JDBC to process data will take,consequently lifts the development efficiency.After a period of preliminary operation,the feedback effect is very good,the system has arrived at anticipant design targets,and accords with customers' demand.This system follows the open industry standards,has the characteristics of good scalability,maintainability,security,etc.;adjusts to information-based construction of social security organizations in different regions.