面向方面软件开发在J2EE企业应用系统中的实现

面向方面编程（AOP）是面向对象编程（00P）的扩展和延续，能够很好地解决横切关注点问题，实现了业务逻辑与非业务逻辑的解耦合。目前大部分研究还主要是把AOP作为一种程序设计方法加以研究的，实际上，AOP对于软件设计和开发过程的影响是全面的。因此在AOP的基础上，从概念、规约、实现三个视角定义了方面，并从概念层、规约层、实现层三个层次研究了面向方面软件开发（AOSD）的开发过程，在Spring框架下给出了J2EE企业应用系统的实现过程，与只使用OOP方法相比，不但简化了设计，也使代码更具可读性。

Implementation of AOSD in J2EE Enterprise Application System

Aspect-oriented programming is extension and continuation of object-oriented programming,it can commendably deal with the problem of system crosscutting concern,to implement loosing coupling between business logic and non-business logic.Now the majority of research is on the level of treating AOP as a method of programming,actually,the influence is all-sides on software design and developing process.So based on AOP,defines the aspect in three different perspectives(concept,specification and implementation),try the developing process of AOSD from three different layers-conceptual perspective,specification and implementation,at last,the implemented process of J2EE enterprise application system is displayed with Spring framework,compared with OOP method,it is not only easy for design,but also is more readable.