摘要随着移动互联网和电子商务产业的高速发展，和电子商务相关的移动应用层出不 穷，大大的方便了人们的日常生活。与此同时，在高校学生生活中，大学生们经常会 出现很多闲置的物品，比如教材、衣服等其他日常生活用品。大学四年如何处理这些 物品也成为了学生们日常关注的问题，尤其是学生毕业时有些同学会拿到二手交易市 场交易，而有些人会因为麻烦等原因不愿意搬运而当作废品卖掉甚至扔掉。这不仅不 利于环保，而且还造成了浪费。83192

与此同时，对于低年级的同学也不需要重复购买新的物品如书籍，而可以直接通 过二手商品交易系统就能买到便宜且实用的物品。本设计题目目的是来源于实际学生 的需要，旨在设计和实现一种针对学生群体的二手商品交易系统，支持书籍、衣物等 其他二手可重复使用物品的销售等功能，从而达到环保和可持续发展的目的。主要包 括：用户可以登录浏览商品、发布商品、购买商品为主要功能，订单信息、个人信息 修改为辅助功能。

毕业论文关键词： 二手交易；android 平台；设计与开发；信息化管理

Abstract With the rapid development of mobile Internet and e-commerce industry and the endless emergence of mobile applications related to electronic commerce, people's  daily life has been greatly facilitated。 At the same time, there appear a lot of unused goods in college students' life, such as teaching materials, clothing and other daily necessities。 How to deal with these items during the four years is also a problem for the students to pay attention to。 In particular, some students will go to second-hand trading market, and some will not be willing to transport as a cause of trouble and do not sell or throw away when they graduate, which not only does harm to the environment, but also causes a waste。

Also, for the low grade students, they do not need to repeat the purchase of new items such as books, instead, they will be able to directly buy cheap and practical items through the second-hand goods trading system。 Inspired by students' actual needs, the goal of my paper is to design and implement a second-hand commodity trading system targeted at students, with the functions of supporting the selling of books, clothing and  other secondary reusable goods so as to achieve the purpose of environmental protection and sustainable development。 The contents of which mainly include:users can browse commodity, release goods, buy goods as the main function, the order information, personal information is modified to assist。

Keywords:Second-hand Transactions; Android Platform; Design and Development; Information Management

目录

第一章 绪论 1

1。1 校园二手交易系统的开发背景 1

1。2 校园二手交易系统的发展目标 1

1。3 校园二手交易系统开发的目的和意义 2

1。4 校园二手交易系统的优点 2

1。5 校园二手交易系统的经济效益分析 3

1。6 校园二手交易系统存在的问题及解决办法 3

1。7 本章小结 3

第二章 校园二手交易系统的相关技术 4

2。1 MVC 架构体系 4

2。2 Android 平台