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数电课设的网上管理系统
随着科技科技快速发展，信息技术已经出现在我们生活中的各个角落，计算机网络的规模也飞速扩大，可以应用的领域也越来越多。在网络上可以进行商业活动，也可以进行日常的通信交流。网络与我们的生活息息相关。但是在很多高校中，数电课设选题这个每个大学生都要经过的过程，只能通过手动填写表格并上报的方式来选择想要的毕设题目，既不方便学生选题，也不方便老师管理。费事费力，效果还不尽如人意。由此现状，诞生了此次项目的需求前提。
本次项目为数电课设的网上管理系统，可以让学生在此系统中直接选报自己想要的题目，老师也可以通过此系统来发布题目。学生可以操作的功能包括：选择课题、修改选择的课题、退选课题，修改个人信息及其密码；教师可以操作的功能包括：添加课题、修改已有课题、删除课题、修改个人信息及其密码；管理员可以操作的功能包括：添加教师、批量添加教师、添加学生、批量添加学生、管理课题、维护系统。
本次项目的开发环境是Eclipse，服务器采用Tomcat，前台页面主要以JSP为主，嵌套较少的JavaScript语句以及CSS样式，后台数据库利用了现在非常流行并且是免费开源的MySQL数据库，采用B/S结构，整个系统采用三层架构模式。所有技术均为免费开源。
关键词：数电课设、选题、java、JSP、B/S架构、三层架构
The Network Management system of Digital electricity course
With the rapid development of science and technology，information technology has appeared in every corner of our life，the scale of computer network has also expanded rapidly，and more fields can be applied. On the network can carry on the business activity，also can carry on the day-to-day communication. The network is closely related to our lives. However，in many colleges and universities，each college student has to go through the process of electing topics in digital courses，which can only be selected by manually filling out the form and reporting. It is not convenient for students to choose topics，nor is it convenient for teachers to manage them. It is hard and hard，but the effect is not as good as expected. As a result，this project was born Demand premise.
This project is a network management system for digital courses，in which students can directly select the topics they want，and teachers can publish them through this system. The functions that students can operate include：selecting a subject，modifying the selected subject，withdrawing the subject，modifying the personal information and its password; Teachers can operate the following functions：add topics，modify existing topics，delete topics，modify personal information and its password; The functions that the administrator can operate include：adding teachers，adding teachers in batches，adding students in batches，managing subjects and maintaining the system.
The development environment of this project is that the Eclipse，server uses Tomcat，foreground pages mainly with JSP，fewer nested JavaScript statements and CSS style，the background database makes use of the MySQL database which is very popular now and is free and open source. B/S structure is adopted，and the whole system adopts three-tier architecture mode. All technologies are free and open source.
Key words：digital courses，topic selection，java，JSP，B/S architecture，three-tier architecture
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