Design And Implementation Of Server-Side In Mobile Social Network System

With the development of Internet and the increasing popularity of mobile terminals, mobile social network service (mobile SNS) has greatly developed. Scene life system is a scene-based mobile SNS system in wireless environment. Combined with current edge-cutting technologies, this system embodies basic conceptions of SNS and provides corresponding solutions to some issues for better user experience and service, including social searching algorithm, access control, and user data privacy protection, and so on.Starting from overall design, this thesis specifically presents the Web server sub-system and instant message server sub-system in Scene Life system. Scene life system realizes the browsing and creation of scene, the browsing of album, the display of friend list, the function of a game and many other functions, and it provides users with new social searching algorithm based on trust. Firstly, technologies related with scene life system are introduced, including the current study of SNS, the calculation and transfer of trust, database persistence technology and thread pool technology, etc. Secondly, the design and implementation of the improved social searching algorithm based on trust are introduced. And it is compared with Dijkstra algorithm and simulation on these two algorithms is made. Thirdly, details of design and implementation of the server-side in Scene Life system are introduced. The system data storage needs and associated business descriptions are proposed. The design of server architecture, business process, IPO structure and function descriptions of subsystems are presented. Besides, the data management service, communication service, scene service and instant message service are taken as examples to describe the details of the design and implementation on the server. After that, the design and implementation of open platform on server-side is given.This thesis focuses on discussing the overall design of the server-side in scene life system and implementation of main services. It introduces the social searching algorithm based on trust. Also, the interfaces and implementation methods of web server and instant message server are described in detail. Finally, through analyzing the result of the system test, the functions of the system is validated, and it is proven that the function and performance of the system meet the design requirements.In the end, the summary of the whole thesis, current shortcomings of the system and future work are given. Also, the summary of my work and research progress during master-degree study are described.