【摘要】 针对传统的实体跳蚤市场不能满足高校学生实时、高效地进行二手交易的需求的问题,在Android平台下,设计并开发了校园二手交易应用软件"高校网上跳蚤市场"。该软件同时考虑了交易的可靠性、消息发布与查找的实时性以及查找物品的高效性,采用了大学生学号信息实名注册及物品分类发布与查找的机制。同时,软件中的数据渲染采用了异步加载的方式,而且通过定义接口和抽象类来管理服务器与客户端之间的通讯。实际应用情况表明,与实体跳蚤市场和现有的网上跳蚤市场相比,该软件不仅使高校学生的二手物品交易更便捷,而且解决了网上二手交易的可信度及安全问题。更多还原

【Abstract】 According to the problem of the traditional entity flea market which isn’t real-time and efficient,under the Android platform,campus second-hand transaction application which is also called university online flea market was designed and developed.The reliability of the trading,updating in real time and efficiently searching items were redefined to using college student id register and information classification.Meanwhile,asynchronous loading method was adopted,and interfaces and abstract classes were defined to manage the communication between the server and the client.Compared with the real flea market and online secondary trading platform,the proposed application not only improves the trading efficiency for college students,but also improves the reliability and security.更多还原