【摘要】 传统的客户/服务器结构应用于大型信息处理系统时,存在扩展性差、维护成本高、升级困难等缺点。采用基于CORBA(Common Object Request Broker Architecture)应用服务器的3层结构极大地扩展了两层结构在功能上的不足,一定程度上解决了业务逻辑与表现逻辑分离的问题。为此,设计和实现了一个基于CORBA的应用服务器。它由POA业务逻辑、数据库服务模块、支撑服务模块、服务器的管理与维护以及CORBA代理接口等组成。更多还原

【Abstract】 Traditional Client/Server model exhibits a lot of defects such as poor expansibility,high support and maintenance costs,and difficult to upgrade when applying to large management information system.The three-tier model of application server based on CORBA(Common Object Request Broker Architecture)extends the two-tier model in the function.It resolves the separation of the transaction logic and representation logic in a certain extent.The application server based on CORBA is presented.It is made up of POA transaction logic,database service,support service,management and maintenance of server and CORBA client agent interface.更多还原