摘  要
互联网“+”的思想已深入人心，高校二手物品平台便是互联网+信息服务的产物。通过Java技术，Springboot框架术构建平台，将供需双方建立连接起来，实现资源的再次利用，以及保护环境和丰富高校文化。
依靠网络的高效方便的特点，将会实现更快，更好的回收利用二手物品，为其省去保管的地理空间，给出租方带来经济效益。充分利用大学生高素养的特质，高效率的促进网站的开发及其实施。该选题旨在创建高校租赁物品循环系统，设计一种能够提高学生使用效率、节约时间与物质成本的合理有序的服务系统。通过构建高校数字化二手物品短租平台，解决二手物品因场地、时限、资讯流通等所造成的流通性差的问题，将大家的众多二手资源整合起来，从物质、制度、精神文化的内涵上不断创新。
关键词：二手平台； 互联网“+”； Mysql； Java；Springboot
Abstract
The idea of Internet "+" has been deeply rooted in the hearts of the people, and the university second-hand goods platform is the product of Internet + information services.Through Java technology, the Springboot framework builds a platform to connect the supply and demand parties, and realize the reuse of resources, as well as protecting the environment and enriching the university culture.
Relying on the efficient and convenient characteristics of the network, it will realize faster and better recycling of second-hand goods, save the preserved geographical space, and bring economic benefits to the lessor.Make full use of the characteristics of college students' high quality, and efficiently promote the development and implementation of the website.The topic is designed to create a circulation system for college rental items, and to design a reasonable and orderly service system that can improve students' use efficiency, save time and material costs.By building a digital short-term rental platform of digital second-hand goods in colleges and universities, we can solve the problem of poor circulation caused by second-hand goods by site, time limit and information circulation, integrate everyone's many second-hand resources, and constantly innovate from the connotation of material, system and spiritual culture.
Key words: secondary platform; Internet "+"; Mysql; Java; Springboot
目录
摘  要 1
Abstract 2
1.项目简介 3
1.1项目背景 3
1.2系统概述 4
1.3系统功能描述 5
2.数据库设计 9
2.1表结构 9
2.2ER图 13
3.系统设计 13
3.1项目配置 13
3.2druid数据源配置 15
3.3拦截器 16
3.4自定义注解：校验注解 17
3.5常用工具类 17
3.6业务代码 27
4.项目实现 29
4.1用户界面 29
4.2管理员页面 34
5.总结 40