Research Of Server Push Technology Based On Request Strategy And Status Transition

With the continuous development of information technology,information push technology is becoming one of the most important methods of publishing and acquiring information.What is different from the traditional information pull approach is that the information pushing approach sends information directly to users,meeting the timely needs of access to useful information.Server push technique is a common form of information push technology;with the rapid development and continuous breakthroughs in browser technology field,Server Push technology have begun to shift from the desktop platform to browser platform.As the browser is based on the HTTP protocol,the traditional server-side and client-side need to establish a permanent connection,two-way communication server pushing method can not be directly used in the browser.So how to achieve browser-based server push technique to meet the needs of real-time applications has become an urgent problem to be addressed.At present,through the combination of Ajax technology,browser-based server push technology has made an eventful breakthrough:a lot of schemes and the frame work based on them have been emerged,and server push overload problem has been effectively improved.However,most of them are focus on the issue of how to improve the server performance,without taking into account the specific needs of applications and practical server application performance.To address this situation,this article through the in-depth research and analysis of the current common server push techniques,from the point of view of application performance,exploratory proposes and designs a framework which is based on the combination of requesting strategy and Status Transition.It makes use of the mixing common push technology as its foundation,the request scheduling as its core, state-transition as auxiliary.According to the specific application of information and users' request type,this framework categorize the user's type,weight each type a different priority level,and then choose an appropriate technical scheme.In order to acquire the best performance,the framework dynamically adjusts the corresponding technical scheme,give priority to ensure customer service experience,realize the reasonable distribution of the server resources.