Design And Implementation Of Arrangement 3 Lottery APP Based On Android

Arrangement 3 lottery was originally of 7-star lottery additional gameplay.It has the characteristics of small prize group,large odds,and high bonus,which is very popular among lottery players.Arrangement 3 is a single bet fixed bonus.In order to ensure the interests of lottery players and the bonus does not shrink,the arrangement 3implements a "limit number" policy.To solve the problem of limit number and the security problem of lottery shopping software itself,we research and develop an Android-based arrangement 3 lottery shopping system.The system adopts B/S architecture,which is composed of client and server.This paper is responsible for the development of Android-based client APP that realizes recharge,cash withdrawal,lottery purchase,number chase,appointment betting,iterative appointment,etc..It can not only receive the limit number information in real time,but also iteratively submit lottery orders iteratively for dynamic real-time limit numbers,so that users can buy the favorite number with the greatest probability;and the security of the account and data transmission are ensured through multi-channel encrypted secure communication technology.The specific work of this paper includes:(1)A solution for arranging 3 dynamic real-time limit numbers is proposed.The functional and non-functional requirements of arranging 3 shopping lottery APP are analyzed,and use case modeling is performed.From the multiple views such as logical view,implementation view,security view,and data view,the architecture of the Arrange 3 shopping lottery APP is designed.(2)It adopts a page destruction and reconstruction technology.The stopped page is not destroyed.When the APP process is not cleaned,and then enter the APP,the page is automatically rebuilt to allow users to keep perform operations before leaving the APP.It also adopts multi-channel encrypted secure communication,using various communication mechanisms(such as wireless networks,cellular networks,Bluetooth,and text messaging)to transfer sensitive data in a secure manner.It adopts the automatic unit test technology of multiple mobile phones,which can quickly realize the automatic test of the APP on multiple models and multiple operating systems,and greatly improve the test efficiency.(3)It designs and implements the lottery subsystem,order management subsystem,bill management subsystem and personal information management subsystem in detail.Their key processes,class diagrams and sequence diagrams are described.The APP system has passed functional testing,performance testing,compatibility testing,and security testing successfully.At present,the developed arrangement 3 lottery APP has been put into trial operation,and the number of users has reached 220,000.After investigation,user satisfaction is 92%,surpassing similar competitive products.