【摘要】 提出了一个利用中间件对旧的两层Ｃ／Ｓ应用程序的身份认证－权限控制体系进行改造的模型，通过中间件的引入使应用程序的身份认证逻辑完全在服务器端实现，并使用户帐号与数据库帐号完全隔离。更多还原

【Abstract】 This paper gives a model to enhance the user identify and privilege control system of the two level C/S application, which is implemented by middleware. In this model, the user identify logical is fully implemented in server, and the account of application is totally separated with the DBMS account.更多还原