中文摘要：

提出了基于J2EE的访问决定服务模型——JRADs，它把应用级的鉴权逻辑从应用逻辑中分离出来，从而很好地解决了分布式应用资源的访问控制问题。首先给出了应用系统与JRADS之间的接口，然后设计了JRADS的逻辑构件，再设计了主要运行元素、管理元素以及它们相关的辅助构件，最后给出了实现JRADS模型的接口及其方法。通过在国家科技基础条件平台的应用，取得了预期的效果。

英文摘要：

The paper proposes the model of J2EE-based Resource Access Decision Services JRADS according to the comprehensive application of J2EE in the distributed environment. It separates the authority logic of application level from the application logic so that to solve the access control problem of distributed application sources better. First, the paper shows the interface between application systems and jRADS. Then it designs the logic components of JRADS. Next, it designs the main functional elements, supervisory elements and their corresponding assistant components. Finally, the paper realizes the interface and its method of the JRADS model. It has obtained the anticipatory effects by deployment and application in the basic condition platform of national science and technology.