《《J2EE的教学评估系统》.doc

摘 要 基于计算机和网络的教学管理，可有效监控教学质量，提高教学管理水平，相关系统的开发设计已引起关注，本课题就是基于J2EE技术，开发设计的教学评估系统。 首先，从教学评估系统的需求入手，确定了系统的模块结构，设计了教学评估系统的指标体系。我们使用UML技术设计了系统静态和动态的设计模型，使用用例图描述了系统的功能和操作者；使用类图描述了系统的静态结构，分别设计了系统中实体BEAN，控制BEAN，基础BEAN并在实现部分给出了典型的实现细节；时序图用来显示对象之间的关系，强调对象之间的消息的时间顺序，同时显示对象之间的交互，文中分析了较复杂的学员投票功能的时序图。根据数据库的规范化设计理论设计了系统的数据库结构，在设计中通过适当的增加冗余大大提高了系统的查询速度，论文给出了数据库关系图[1]。 其次，介绍了系统的实现，分析了几个典型的业务逻辑封装的实现细节、几个典型的交互界面的实现细节和实际界面展示，以及应用系统在Tomcat上的部署。 系统实现已达预期目标，满足了教学评估的基本要求，系统具有友好的交互界面，对学院教学质量和管理水平的提高起来积极的作用。 关键词：  Abstract Based on the teaching management of computer and network, We can effectively control the quality of teaching and improve teaching management. Developing and designing of correlative system has attracted people’s attention. This subject is based on J2EE technology, It Designs the Educational Evaluation System. First, Start on the demand analysis of the Education Evaluation System, We design the system’s module structure. We designe a static and dynamic design model using UML, It describes the system’s functions and operators using use case diagram, and describes the static structure using class diagram, We design the Entity JavaBean, Control JavaBean, based JavaBean, and give the typical details of class’s implementation. Sequence Diagrams are used to describe the relationship between objects. It emphasizes the message’s time sequence between objects, It also shows the interaction between objects, This paper analyzes the comples sequence Diagrams of student votion. We design the database structure using normalization of Relation Database, Query speed is greatly enhanced by means of appropriate increasing redundancy in the design, This paper also gives the database diagram of the system[11]. Secondly, The paper introduces the system implementation, and analysis the several typical implementation details of business logic Package, Several typical interface implementation details. It shows the actual interface, and introduces the deplovment of application system in Tomcat. Th