Method for recording online learning time in video lesson

Abstract

The invention discloses a method for recording online learning time in a video lesson. The method determines whether a user watches the video lesson in multiple browsers at the same time by continuously polling browser clients and cooperating with a server, which solves the problem of independence from the clients and avoids repeated accumulation of the learning time. The method can ensure that one user can only open one video playing page at a time. The method solves the problem of how to more accurately record the video lesson learning time of a student in an online learning system, and avoids the problem that multiple sessions lead to multiple times of repeated accumulation, that is, one user learns multiple video lessons at the same time to accumulate the learning time. A s second timeinterval of the method takes into account of time of network transmission and service response. Moreover, the method ensures that generation starting time stamps t0' and t2 of newly opened video playing pages each time are not equal through an optimistic lock mechanism.

Description

technical field [0001] The invention belongs to the field of computer web applications, in particular to a method for accurately recording the learning duration of video-on-demand courses in applications run by browsers. Background technique [0002] With the popularization of the Internet and the development of web2.0, browser-based web applications are becoming more and more popular. The http protocol of the request + response mode has created the simplicity and ease of use of browser web applications, as well as the technological realization. quickness. The emergence of css3, html5, and the popularity of ajax technology and json data format make the http-based web system inherently have many advantages, such as stronger flexibility, more complex diversity, stronger scalability, and better user experience. The http protocol is stateless and cannot keep the user state, but it can keep the user session through session or cookie record identification, thus making http state...

AI Technical Summary

Problems solved by technology

In addition, because http is based on short connections, it is difficult if there are functions that require long connections in web applications

Although some newly released web servers have added long connection modules, and html5 has also extended http to support websocket, but it is still not as easy to use as socket, and is also limited by the browser version, and can only support higher versions of html5 It can only be supported on browsers and higher version web servers

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