【摘要】 在J2EE架构下,封装OFBiz工作流引擎的基础之上,采用表示层、业务逻辑层与持久层分离的设计模式,大大降低了模块之间以及模块内部的耦合度,同时使系统具备良好的扩展性与可维护性。从总体上给出了水利水电应用系统的设计与实现方法。更多还原

【Abstract】 Based on J2EE frameworks and OFBiz workflow engine,the application adopts the design pattern of representing hierarchy,separating the business hierarchy from persistence hierarchy,which reduces greatly coupling degree inside the module and between the modules,and also brings big advantages of expansion and of the system.The paper mainly describes the design and implementation of water conservancy and hydropower application systems.更多还原