网上选课系统分析与设计

文档字数:11294,页数:38

摘  要

 网上选课系统是针对在校学生和教师使用，从学生的角度来说，由于学校教学制度的改革，现在大部分高等院校开始实行的是学生的自主选课模式，传统的教学模式（学生按照学校安排好的课程上课）已经不能适应新型的教学手段，如果仍然通过纸上的方式选课，一方面浪费的大量的人力、物力资源，另一方面浪费时间以及在人为的统计过程中不可避免出现的差错等情况。随着高校人数的增多，这种弊端会越来越多的暴露出来。因此，利用网络，使学生只要在计算机前输入自己的个人选课信息即可完成原来几倍的作业量。从教师的角度来说，同样是节省了大量的工作量，由于教师提出代课申请完成课程发布的工作较学生选课而言更加的复杂，因此通过网上进行课程发布能大幅度的减少教师的工作量，减少错误的发生几率。作为教师，也只要通过自己的电脑来操作即可，不用再奔波于教务处和办公室之间。
 本系统是采用Java环境下实现MVC设计模式的Struts框架和实现ORM的Hibernate框架结合起来开发的。用Struts构建整体框架，Hibernate实现数据持久层，这两者的结合很大的提高了系统开发效率，使的系统更易于维护，可重用性更高，可移植性更好。
 关键词：Struts 网上选课 Hibernate 
  
 
 
Online Course Selection System
Development and Design
ABSTRACT
   Online Course Online Course Selection System is targeted at school students and teachers from the perspective of our students. because the reform of school education, most colleges and universities are now beginning to implement the student's own course selection model. the traditional teaching (students arranged in accordance with school curriculum classes) have not adapt to new teaching methods, if the paper is still the way through the course selection. on the one hand and waste a lot of manpower, material resources, on the other hand a waste of time and man-made statistical process appears inevitable errors and so on. With the increasing number of universities, such shortcomings would be exposed more and more. Therefore, the use of the network, as long as the computer before the students enter their personal information to complete the original course selection is several times the amount of work. From the teacher's point of view, also save a lot of workload. as proposed by substitute teachers for completion of the course work published more than students in course selection in terms of complexity. it can be released through online courses greatly reduce the work of teachers volume. reducing the occurrence of the error probability. As a teacher, also as long as the computer to operate by their own can, no need to rush in between the office and the Registry.
  This system uses the Java environment to achieve the Struts MVC design pattern framework and the Hibernate ORM framework to achieve integrated development. Construction of overall framework using Struts, Hibernate for data persistence, this combination greatly increased the efficiency of system development, making the system easier to maintain, higher reusability, portability and better.
Key words: Struts Online Course Selection System Hibernate

摘  要 I
ABSTRACT II
1  前言 1
2  系统开发工具与开发平台 2
2.1开发模式 2
2.2 JSP简介 2
2.3 MVC开发模式 2
2.4 Struts简介 4
2.5 Hibernate简介 5
2.6 MyEclipse简介 6
2.7 java script简介 6
2.8系统运行环境 7
3 系统分析 8
3.1系统环境的初步调查 8
3.2系统的可行性研究 8
3.2.1经济可行性 8
3.2.2技术可行性 8
3.2.3社会可行性 9
3.3详细调查 9
3.3.1系统功能分析 9
3.3.2系统业务流程分析 10
3.4新系统逻辑模型的提出 11
3.4.1数据流程图（DFD） 11
3.4.2数据字典分析 13
4 系统总体设计 16
4.1系统功能结构设计 16
4.2 系统总体物理结构 19
4.2.1系统逻辑结构 19
4.3代码设计 20
4.4数据库设计 21
4.4.1数据库概念结构设计 21
4.4.2数据库逻辑结构设计 22
5 系统详细设计 25
5.1功能模块设计 25
结论 28
参考文献 29
谢  辞 30

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