基于EAI的多层分布式应用与实现

针对目前大型企业各类应用迅速增加但应用之间缺乏有效通信的问题,采用企业应 用集成(EAI)技术,提出了4层分布式应用体系结构,实现流程自动化和松耦合的应用集成.文中首先从EAI技术和常见解决方案出发,详细阐述了表示层、企业门户、EAI总线层和数据源层的功能及软件结构,并结合电信业务运营支撑系统的实际需求,给出了J2EE平台下的应用实例开发.利用组件和容器的技术构建企业门户,通过工作流和企业Java组件(EJB)技术实现EAI总线,借助资源适配器完成应用之间的互连互通.该系统现已投入实际运行,取得了良好的应用效果.

EAI-based Multi-layer Distributed Application and Implementation

In order to solve the problem of enterprise applications increasing rapidly due to lack of efficient communication, a 4-layer distributed application architecture based on EAI technology is presented to implement workflow, automation and application integration of loose coupling. Firstly the EAI technology and usual solutions are introduced, then the functions and software structures of expression layer, enterprise portal, EAI bus layer and data source layer are described in detail. According to the practical requirement of telecommunication operation support systems, an application example has been developed on J2EE platform. The enterprise portal is constructed by modular and container technology. The EAI softbus is realized by workflow and EJB module. The communication between applications is accomplished by resource adapters. The system shows good effect in practical application.