摘   要：由于现代科技的蓬勃发展，人们已经渐渐习惯在互联网上学习、购物。在这样的背景下，在线教育随之出现了，本课题所研究的这款《电工电子在线答题APP》就属于在线教育的领域。在传统的上课模式中，受时间和地点限制比较大，相比较而言，在线教育有更多的优势，学生和老师也更加便利，用户在网上进行学习的行为也越来越多。

这款APP由学生客户端和教师客户端组成，本课题主要研究教师客户端的功能及相应的实现方法。本文所研究的教师客户端具有注册、登录、发布通知、聊天、生成二维码签到、创建课程和上传课件、在线答题以及显示未签到学生信息的功能。需配合《电工电子在线答题APP》学生客户端使用。

该客户端服务端以Java语言为基础，采用mysql实现服务数据库，客户端基于Android，客户端和服务器窗口采用的连接方式为socket连接，运用json作为数据传输。在线下进行了测试，功能基本都能实现，在上课签到方面极大的节省了老师的点名时间，增加了课堂活跃性。但还有许多可以优化的地方，比如可以提升界面的生动性，部分功能还需要完善。

关键词：在线答题；Android；答题APP；

Abstract：Due to the vigorous development of modern science and technology, people have become accustomed to learning and shopping on the Internet. In this context, online education followed, the subject of this study "The design of APP on Electrical and Electronic Technology-Teacher Edition" belongs to the field of online education. In the traditional class model, by time and place restrictions are relatively large, compared to online education have more advantages, students and teachers are more convenient, the user online learning behavior is also more and more.

  This APP is composed of student client and teacher client. This topic mainly studies the function of teacher client and the corresponding realization method. The teacher client studied in this article has the function of registering, registering, announcing, chatting, generating two-dimensional code sign, online answering, and displaying information that is not signed. Need to meet the "The design of APP on Electrical and Electronic Technology-Student Edition" student client use.

The client server to the Java language as the basis, using mysql to achieve service database, the client based on android, client and server window using the connection for the socket connection, the use of json as a data transmission. Online under the test, the basic functions can be achieved in the school sign a great savings in the teacher's name time, an increase of classroom activity. But there are many places that can be optimized, such as the interface can enhance the vivid, some features also need to improve.

Keywords: online answer; Android; answer APP

目录

第一章 绪论 1

1.1 研究背景 1

1.2 国内领域现状 2

1.3 项目意义 3

第二章 相关技术介绍 5

2.1 Android 5

2.1.1 Android的简介 5

2.1.2 Android的应用组件 5

2. 1.3 Activity 5

2.1.4 Intent 6

2.2 Java 7

2.2.1 Java的简介 7

2.2.2 Java的编程环境 8

2.2.3 Handler 《电工电子技术》在线答题APP设计+源代码:http://www.chuibin.com/jisuanji/lunwen_206538.html