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Apache-2.0

SSM+Bootstrap+Vue开发在线学习系统

本课题的主要内容是开发基于Java EE的在线学习平台,使用MVC经典开发模式、Java EE的框架 SSM(Spring+SpringMVC+Mybatis)等相关技术开发网站系统。

    使用的开发环境是以MyEclipse为开发环境,采用Tomcat服务器作为Web应用容器,并应用MySQL为系统的数据库管理。

    在MVC模式中,应用程序被划分成了模型(Model)、视图(View)和控制器(Controller)三个部分。其中,模型部分包含了应用程序的业务逻辑和业务数据;视图部分封装了应用程序的输出形式,也就是通常所说的页面或者是界面;而控制器部分负责协调模型和视图,根据用户请求来选择要调用哪个模型来处理业务,以及最终由哪个视图为用户做出应答。

   模型层(Model)主要完成业务的逻辑处理以及数据的存储。包括业务流程、状态处理及业务规则的处理。业务逻辑接收视图层的请求数据,并返回最终的处理结果。数据模型是实体对象的数据保存,实现了视图层和模型层之间的交互。视图层(View)主要是进行用户和系统的交互,展示用户 所需要的 数据,主要是界面,包括输入和输出。一般可采用JSP、HTML页面、XML等技术实现。一个应用程序可以有很多不同的应用视图,MVC模式只进行视图上数据的采集及处理,及用户的请求,而不在视图上进行业务流程的处理,而是由模型层来处理这些业务流程及状态的改变。

    系统是使用到以下的核心Java EE技术。

    1)Spring

    Spring是一个开源框架,Spring是于2003 年兴起的一个轻量级的Java 开发框架,由Rod Johnson 在其著作Expert One-On-One J2EE Development and Design中阐述的部分理念和原型衍生而来。它是为了解决企业应用开发的复杂性而创建的。Spring使用基本的JavaBean来完成以前只可能由EJB完成的事情。然而,Spring的用途不仅限于服务器端的开发。从简单性、可测试性和松耦合的角度而言,任何Java应用都可以从Spring中受益。 简单来说,Spring是一个轻量级的控制反转(IoC)和面向切面(AOP)的容器框架。

    2)Spring MVC

    Spring MVC属于SpringFrameWork的后续产品,已经融合在Spring Web Flow里面。Spring MVC 分离了控制器、模型对象、分派器以及处理程序对象的角色,这种分离让它们更容易进行定制。

    3)MyBatis

    MyBatis是一个基于Java的持久层框架。iBATIS提供的持久层框架包括SQL Maps和Data Access Objects(DAO)MyBatis 消除了几乎所有的JDBC代码和参数的手工设置以及结果集的检索。MyBatis 使用简单的 XML或注解用于配置和原始映射,将接口和 Java 的POJOs(Plain Old Java Objects,普通的 Java对象)映射成数据库中的记录。

项目运行说明书

Eclipse,MyEclipse,IDEA开发工具都可快速导入启动!!

1. 论文章节结构

##部分内容节选

在线学习平台主要分为三大功能模块:系统管理员模块、教师模块和学生模块。如图2-1所示。

管理员模块:每一个应用系统都需要这样的一个角色,它能保证系统能够在动态中稳定运行,管理系统各种配置属性,即拥护最高的权限。具体功能如下:

学院管理:对学院这个实体进行添加、删除、查询、修改等操作。

课程管理:对课程这个实体进行添加、删除、查询、修改等操作。课程应该归属指定的学院。

教师管理:对教师信息进行管理,包括添加、删除、查询、修改。同时可以通过excel表格批量导入教师信息。

学生管理:对学生信息进行管理,包括添加、删除、查询、修改。同时可以通过excel表格批量导入学生信息。

课程资料管理:对教师上传的课程视频、文档进行管理。

考试管理:可以对教师发布的考试进行管理。

论坛管理:对师生之间的讨论信息进行管理。

公告管理:对在线学习平台的全局公告进行管理。

2. 系统类图设计

从在线学习平台的需求分析中大致可以分析出一些类,但是还不能全面的分析出系统中的实体类。考虑著名的MVC模式,我们需要识别实体、控制和边界三种对象。按照MVC模式来为识别对象做指导,是非常好的做法。对象识别的结果,就是我们所需要的静态模型,通常表现为类图。这个过程使用UML建模技术,将系统中的类结构描绘出来。

首先识别出实体对象,这些对象是比较容易看出来的,例如系统中的角色(管理员、教师、学生)。根据现实世界,角色应该有姓名、性别、电话号码、身份证等属性。系统角色类图如图3-1所示。

在线学习平台中的学院、课程、课件等实体类。其中课程应该归属某一个学院的,并且课件的应该是属于某一个课程,由教师上传。课件可以由学生登录平台进行在线观看和下载,其中path字段存储文件的路径。其类图如图3-2所示: 除了上面这些实体类,还有一些通知类。系统公告,是所有的登录用户都可以看到的。教师可以发布课程的问题让学生参与其中讨论,这样就需要一个讨论的实体类discuss。有些实体对象需要稍微分析一下才能得到,例如,在在线学习平台中,为了记录学生对教师发布的讨论进行回复,这时就需要一个对象来专门记录这一信息(Discuss_post实体)。其类图如图3-3所示:

在线学习平台还有一个在线测试的功能,教师发布考试并且添加试题同时给出试题的正确答案。学生登录系统后,可以在线完成测试,系统自动给该生打分。这样一个功能的完成,需要的实体类有task(考试)、task_question(试题详细)、student_task(学生成绩)。其类图如图3-4所示:

3. 系统文件介绍

4. 项目结构

5. 部分功能演示:

                                                                                 图5-12  考试信息列表

                                                                                   图5-13  试题信息

项目开发技术路线1 Spring+Spring MVC +MyBatis+JSP
项目开发技术路线2 Spring+Spring MVC+MyBatis+Vue

系统在线演示test Reward

项目需求联系:2027776292

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简介

学院管理:对学院这个实体进行添加、删除、查询、修改等操作。课程管理:对课程这个实体进行添加、删除、查询、修改等操作。课程应该归属指定的学院。教师管理:对教师信息进行管理,包括添加、删除、查询、修改。同时可以通过excel表格批量导入教师信息。学生管理:对学生信息进行管理,包括添加、删除、查询、修改。同时可以通过excel表格批量导入学生信息。课程资料管理:对教师上传的课程视频、文档进行管理。考试管理:可以对教师发布的考试进行管理。论坛管理:对师生之间的讨论信息进行管理。公告管理:对在线学习平台的全局公告进行管理。 展开 收起
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