A Photo Printing System Based On WeChat Public Platform

Nowadays, the quality of photos taken by smart phones is getting better and better. For people who want to get photos in paper, the photo studio seems to be good choice. But this process is so tedious and the cost for paper photo is high. Considering the popular of mobile internet applications and online payment, we can design a self-service system which prodives people a new way to print photos. People can transfer photos online, pay for it online and get the photo offline in special machine. We implement the system based on WeChat public platform and WeChat payment, as well as the desktop software.The whole system consists of three parts: WeChat programs,backend server and desktop software of the machine. This paper will describe every part in detail and analysis the implementation of all modules, including WeChat development, web development, WeChat payment development, HTTP server, WebSocket server, desktop software of machine and the principle of printing.First of all, the paper introduces the background and meaning of this project. Then describe the related technologies of this system, including how to develop web software based on WeChat, how to develop HTTP server, the principle of WebSocket procotol, MySQL and Redis, the desktop software framework Electron, the CUPS printing system. The chapter III discusses the design and implementation of photo printing system based on WeChat in detail. In section I we analysis the requirements and the design of modules. And In next three sections we discuss the implementation of main three modules, including WeChat development, server development, desktop development. The chapter IV is about system test, the functional testing and performance testing are analysised. We also introduce the characteristic of self-service. The last part is the summary of paper.